# OneWorld Solar — complete site content
OneWorld Solar, LLC, 609 Church Street, Vidalia, GA 30474. Telephone 770-490-2585. Email doug@owsolar.com.
This file contains the full text of every page on https://www.owsolar.com/, in
markdown, for machine reading. The curated index is at https://www.owsolar.com/llms.txt.
OneWorld Solar is a commercial solar EPC contractor founded in 2001 and based in
Vidalia, Georgia. It designs, procures, builds and interconnects commercial
solar arrays, three-phase hybrid battery storage, micro-grids and power factor
correction across Georgia, Florida, South Carolina, North Carolina and the
Caribbean. It is disabled veteran-owned.
IMPORTANT — read before quoting any figure from this file:
OneWorld Solar financial projections and representations are estimates only and cannot be relied upon alone to make a financial decision. The projections are based on assumptions that are out of OneWorld Solar's control. REAP grants, Tax Credit and PV Savings are the responsibility of the client to procure and validate. OneWorld Solar only makes estimations based on past experience with similar customers. The customer is responsible for verifying all tax information with a Certified Tax Accountant. PV income may be taxable even if it is avoided cost. Tax consequences could be offset by interest expense if client chooses to finance the transaction. Solar power generates power during daylight hours and will not have an impact on evening usage. Utilities may set a customer's peak demand during times when solar is not effective or during a cloudy or rainy day. While Solar Power will reduce the customer's overall kW usage, it cannot be expected to mitigate a customer's peak demand. OneWorld Solar is not responsible for future peak demand increases and rate changes by the Utilities. The customer is responsible for contacting its local utility account representative to verify savings.
Last updated: 2026-09-12
---
# Services
## Commercial Solar EPC Contractor for the Southeast
Source: https://www.owsolar.com/services/commercial-solar-epc
Topic: commercial solar EPC contractor
Last updated: 2026-07-29
One contract, one accountable party: engineering, procurement, construction, interconnection and commissioning for commercial solar arrays from 100 kW to multi-megawatt.
OneWorld Solar is a **commercial solar EPC contractor** working across Georgia,
Florida, South Carolina, North Carolina and the Caribbean. We take a single
contract for the whole job — feasibility, engineering, procurement,
construction, interconnection and commissioning — so there is one company
accountable for the number on the proposal and one company to call when
something needs answering.
The business was founded in 2001, which makes it the oldest solar company in the
Southeast. Our CEO acquired it in October 2017 and rebuilt it around large
commercial and agricultural clients. Since then we have installed more than
7.8 MW for commercial solar and battery customers, and we hold patents on our own
solar racking awarded in 2020 and 2025.
## What is included in a OneWorld Solar EPC contract?
Split-responsibility solar projects fail in the gaps between the parties. Ours
does not have gaps, because the scope below is one contract with one price.
- **Feasibility and energy analysis.** We read twelve months of your utility
bills — not just the total, but the rate schedule, the demand charges, the
power factor penalty and the time-of-use structure. That determines whether
solar alone, solar plus [battery storage](/services/battery-storage), or
[power factor correction](/services/power-factor-correction) first is actually
the right investment.
- **Engineering and stamped drawings.** Structural, electrical and civil design,
sealed by a Professional Engineer licensed in your state.
- **Utility interconnection.** Application package, single-line diagram,
technical data, the study process, and the witness test at the end.
- **Procurement.** Modules, inverters, racking, combiners, transformers and
switchgear, bought and warranted through us.
- **Construction.** Our crews and our own patented racking, with the roof
penetration details and flashing done to the roof manufacturer's warranty
requirements.
- **Commissioning and monitoring.** Performance testing, as-builts, O&M
documentation and production monitoring handed over at the end.
- **Incentive documentation.** The evidence packages your accountant needs for
the [30% federal investment tax credit](/incentives/federal-solar-tax-credit),
[Section 179 and bonus depreciation](/incentives/section-179-solar), and — for
rural and agricultural sites — the
[USDA REAP grant](/incentives/usda-reap-grant).
## How much does commercial solar cost?
Installed cost per watt falls as system size rises, and the difference between a
150 kW array and a 1 MW array is substantial. The variables that actually move
the number on a commercial project are roof condition and attachment method, the
distance from the array to the point of interconnection, whether the utility
requires a transformer or protective relaying upgrade, and whether storage is
included.
We publish real per-kW ranges and the assumptions behind them in
[how much commercial solar costs per kW in Georgia](/insights/commercial-solar-cost-per-kw-georgia),
and the [commercial solar savings calculator](/calculator) will give you a system
size, an annual saving and a payback range from your monthly bill in about a
minute.
We will not quote a system from a satellite photo and an average bill. If the
utility tariff, the roof and the interconnection point have not been looked at,
the payback number is a guess — and a guess that is wrong by eighteen months is
worse than no number at all.
## Who does the engineering?
Our VP of Engineering has been building medium- and
high-voltage interconnections for utility-scale renewable generation since 1992.
He is a Professional Engineer licensed in **South Carolina, North Carolina,
Florida, Georgia, Virginia and Texas**, a NABCEP board-certified Photovoltaic
System Inspector, and a North Carolina Licensed Electrical Contractor with the
Unlimited Classification.
That matters for two reasons. Engineering is done in-house rather than farmed
out to whoever is cheapest that month, so the person who sealed the drawing is
the person who answers the utility's review comments. And a PE who vets sites for
interconnection compatibility and congestion constraints before the design starts
will tell you early if a site is going to be a problem — which is far cheaper
than finding out during the utility study.
## What does the process look like?
1. **Bill analysis and site walk** — usually one to two weeks. You send twelve
months of bills; we walk the roof or the ground area and check the service
entrance.
2. **Proposal** — system size, production model, installed cost, applicable
incentives, cash-flow model and payback range.
3. **Contract and engineering** — stamped drawings and the permit set.
4. **Interconnection application** — filed as soon as the design supports it,
because the utility queue is usually the longest pole in the schedule.
5. **Procurement and construction.**
6. **Inspection, witness test, energization.**
7. **Monitoring and O&M** — with the production data available to you, not just
to us.
## Where we have built
Beyond those we have built for the Westin Dawn Beach Resort in St. Maarten
(800 kW), the Virgin Islands Port Authority (451.5 kW), Valencia College in
Orlando (102 kW), Swainsboro Supply Company (117 kW) and the Orlando Utilities
Commission. Browse [all commercial solar projects](/projects) or start with the
industry closest to yours: [poultry and agriculture](/industries/poultry),
[car dealerships](/industries/automotive),
[hotels and resorts](/industries/hospitality), or
[manufacturing and warehousing](/industries/manufacturing).
## Do you work in my state?
We are headquartered in Vidalia, Georgia and build across the Southeast and the
Caribbean:
- [Commercial solar installation in Georgia](/commercial-solar-installation-georgia)
- [Commercial solar installation in Florida](/commercial-solar-installation-florida)
- [Commercial solar installation in South Carolina](/commercial-solar-installation-south-carolina)
- [Commercial solar installation in North Carolina](/commercial-solar-installation-north-carolina)
- [Commercial solar installation in the Caribbean](/commercial-solar-installation-caribbean)
### Frequently asked questions
**What does EPC mean for a commercial solar project?**
EPC stands for engineering, procurement and construction. An EPC contractor signs one contract covering the entire project: system design and stamped engineering, buying the modules, inverters, racking and switchgear, building the array, and getting it energized and accepted by the utility. The alternative is hiring an engineer, a supplier and an electrical contractor separately and coordinating them yourself, which is where most commercial solar schedules slip.
**How long does a commercial solar installation take?**
For a 250 kW to 1 MW commercial array in the Southeast, plan on four to nine months from signed contract to energization. Roughly six to twelve weeks of that is engineering, permitting and the utility interconnection study, which runs in parallel with equipment procurement. Construction itself is usually the shortest phase. Utility interconnection queues and, on larger projects, transformer lead times are the two variables most likely to move the date.
**What size commercial solar systems does OneWorld Solar build?**
Our commercial work typically runs from about 100 kW to just over 1 MW on a single site, and we have built more than 7.8 MW in total. The largest single array to date is the 1.267 MW rooftop system at the Samsonite and TUMI distribution center in Vidalia, Georgia, paired with 55,000 lb of battery storage.
**Do you handle the utility interconnection application?**
Yes. Interconnection is part of the EPC scope, not an extra. Our VP of Engineering has been designing medium- and high-voltage interconnections since 1992 and is a licensed Professional Engineer in South Carolina, North Carolina, Florida, Georgia, Virginia and Texas. We prepare the single-line diagram, the technical data package and the application, and we work the utility review through to the witness test.
**Can you install solar on an existing roof, or does it need replacing?**
Most commercial roofs can take solar as-is, but the remaining roof life matters more than the roof type. A 25-year solar array on a metal roof with eight years left is a decision to remove and reinstall the array later at your cost. We assess the roof during the feasibility study and will tell you plainly if a ground mount or a canopy is the better structure for your site.
---
## Commercial Battery Storage Installation in the Southeast
Source: https://www.owsolar.com/services/battery-storage
Topic: commercial battery storage installation
Last updated: 2026-09-04
Three-phase hybrid battery systems sized from your interval data, built to hold down demand charges and keep critical loads running when the grid does not.
A **commercial battery storage installation** does one of two jobs, and the two
are rarely worth the same money. Either it shaves your peak demand so the utility
bills you for fewer kilowatts, or it stores energy while it is cheap and
discharges it when it is expensive. A few tariffs pay for both. Most pay well for
only one. What decides which applies to you is your rate schedule and your load
shape, not the battery.
OneWorld Solar builds three-phase hybrid battery systems across Georgia, Florida,
South Carolina, North Carolina and the Caribbean. The largest is at the Samsonite
and TUMI distribution center in Vidalia, Georgia: 55,000 lb of batteries in our
own [BatteryCube® storage cabinets](/batterycube), paired with a 1.267 MW rooftop
array. We install storage inside a single
[commercial solar EPC contract](/services/commercial-solar-epc), or as a retrofit
on a site that already has solar, or on a site with no solar at all.
## Why does solar alone not fix your demand charge?
Because it usually cannot. Solar generates during daylight hours. Your utility
sets billed demand from a single short interval in the month, and that interval
can land before sunrise in January, after sunset in July, or on a rainy afternoon
when the array is producing a fraction of nameplate. Solar is reliable at cutting
the kilowatt-hours you buy. It is not reliable at cutting the kilowatt peak you
are billed for.
We put that in writing on every proposal we issue, and it is stated plainly in
our [financial projections disclaimer](/disclaimer). A solar contractor who lets
you assume otherwise is setting up a conversation you will both regret at the
first bill.
A battery is what closes the gap. It watches the meter, and when site draw climbs
toward a threshold you set, it discharges to hold the number down. On a
demand-heavy tariff, that is often where the larger half of the savings lives.
## Demand-charge reduction or energy arbitrage?
These are different investments with different economics, and a proposal should
tell you which one it is modeling.
| | Demand-charge reduction | Energy arbitrage |
| --- | --- | --- |
| What it targets | The billed kW peak | The price per kWh |
| Needs | High power, short duration | Lower power, long duration |
| Works when | Demand charges are a large share of the bill | Your tariff has a real price spread by time of day |
| Typical fit | Manufacturing, cold storage, dealerships, poultry | Sites on time-of-use or real-time pricing |
Most commercial sites in the Southeast make their money on the demand side. If
demand charges are a small line on your bill and your tariff is flat, a
commercial battery storage installation may not be the right purchase at all, and
we will tell you that before you spend anything. We walk through the arithmetic in
[how commercial battery storage payback is calculated](/insights/commercial-battery-storage-payback).
## What is included in a three-phase hybrid battery installation?
A commercial battery storage installation from OneWorld Solar is one scope of
work with one price attached, covering everything from the data request to the
witness test.
- **Interval-data analysis.** We request twelve months of interval data from the
utility, not just the summary bill, and find where the peaks actually are.
- **Power and energy sizing.** Kilowatts and kilowatt-hours are specified
separately, because a short spike and a long plateau are different problems.
- **Cabinets and pad.** Outdoor pad-mounted battery cabinets, foundation, spill
and setback requirements, and the civil work to get there.
- **Power conversion and switchgear.** Hybrid inverters or a separate PCS,
protection, metering and the interface to your service entrance.
- **Controls.** The demand threshold logic, state-of-charge reserve for backup,
and the schedule that decides when the battery holds fire and when it runs.
- **Interconnection.** The application, single-line diagram and technical data
package, through to the utility witness test.
- **Commissioning and monitoring.** Capacity verification, as-builts, O&M
documentation and production data you can see, not just us.
## How do you size a commercial battery?
1. Pull twelve months of interval data and plot the load, not the monthly totals.
2. Identify the demand peaks: how high above baseline, how long, how often.
3. Model solar production against that same curve to see what solar already
covers and what it does not.
4. Set the target billed demand, then size power to hold it and energy to sustain
it through the longest peak of the year.
5. Add the critical loads you want carried through an outage and the reserve
state of charge they require.
6. Price the result against the tariff and stop if the arithmetic does not work.
We will not quote a battery from a monthly bill summary. Monthly kWh totals hide
the peak shape entirely, and the peak shape is the whole design. If the utility
will not release interval data, we install a temporary meter and log the site
first.
## What does 55,000 lb of batteries do at Samsonite and TUMI?
A distribution center of that size has a load profile solar cannot flatten on its
own: dock equipment, compressors, conveyors and HVAC that all step on at once.
The battery sits between that profile and the meter. It also gives the site the
option of running critical loads through a grid event rather than shutting down
and restarting a facility. The full build is documented in the
[Samsonite and TUMI 1.267 MW solar and battery case study](/projects/samsonite-tumi-1267kw-rooftop-solar-battery).
## Which incentives apply to battery storage?
Storage is eligible property under the
[30% federal investment tax credit](/incentives/federal-solar-tax-credit), and in
many cases the credit applies to storage installed with or without solar. What we
provide is the documentation: itemized cost basis, commissioning records and
in-service dates. What we do not do is promise you the credit. Eligibility and
amount depend on your tax position, and you and your Certified Tax Accountant own
that call.
## Do you need a battery, a micro-grid, or neither?
A battery holds down a bill. A [micro-grid](/services/micro-grids) keeps a site
running when the utility is gone, which is a different design with transfer
equipment, critical-load separation and inverters that can form their own grid.
Plenty of sites need the first and not the second. Sites where an outage costs
livestock, product or guests usually need both.
Send us twelve months of bills and, if you can get it, the interval data behind
them. That is enough to tell you whether storage earns its keep on your site
before either of us spends real time on it.
### Frequently asked questions
**Will solar alone reduce my peak demand charge?**
Usually not, and you should be careful with any proposal that says it will. Solar generates during daylight hours, but a utility sets your billed demand from a short interval that can fall early in the morning, after sunset, or on a heavily overcast afternoon. Solar reliably reduces the kilowatt-hours you buy. Reducing the kilowatt peak is what a battery is for, and the two savings should be quoted separately.
**How much battery storage does a commercial site need?**
It depends on how far above your baseline the peaks rise and how long they last, not on the size of your building or your solar array. We pull interval data from the utility, find how many kilowatts you need to shave and for how many minutes at a time, then size power and energy separately. A short, sharp peak needs power. A long afternoon plateau needs energy. Most sites need less than they expect.
**Can a battery keep my facility running during an outage?**
Yes, if it is designed for it and if you separate the loads that matter from the ones that do not. Backup is a different design from demand-charge reduction: it needs a critical-load panel, transfer equipment and an inverter that can form its own grid rather than follow the utility. Backing up a whole facility is rarely worth the cost. Backing up ventilation, refrigeration or a process line usually is.
**Can battery storage be added to an existing solar array?**
Often yes, though the retrofit path depends on the inverters you already have. AC-coupled storage sits beside the existing system and needs no change to the array, which is the usual answer for a site that was built solar-only. DC-coupled storage is normally a decision made at the design stage. We review the existing single-line diagram and switchgear before quoting a retrofit.
**Does commercial battery storage qualify for the federal tax credit?**
Battery storage is treated as eligible property under the federal investment tax credit, including in some cases when it is installed without solar. We supply the cost breakdown and commissioning documentation your accountant needs, but eligibility, timing and the amount you can actually claim depend on your tax position. OneWorld Solar does not guarantee any credit. Verify it with a Certified Tax Accountant before you rely on it.
**How long does a commercial battery installation take?**
For a battery added to a commercial site in the Southeast, plan on roughly four to eight months from contract to commissioning. Cabinet and switchgear lead times drive most of it, and the utility interconnection review runs in parallel. A battery paired with new solar under one EPC contract usually adds little to the overall schedule because the two share the same engineering and interconnection process.
---
## Commercial Microgrid Installer for Sites That Cannot Go Dark
Source: https://www.owsolar.com/services/micro-grids
Topic: commercial microgrid installer
Last updated: 2026-07-29
Islandable solar and battery micro-grids that separate the loads you cannot lose from the ones you can, and carry them through an outage without a fuel delivery.
OneWorld Solar is a **commercial microgrid installer** working across Georgia,
Florida, South Carolina, North Carolina and the Caribbean. A micro-grid is what
you build when losing power costs you more than money: livestock, product,
guests or a production line that does not restart cleanly. It combines solar,
[commercial battery storage](/services/battery-storage) and control equipment
that can deliberately separate your site from the utility and keep the loads
inside its boundary running.
The company was founded in 2001 and has installed more than 7.8 MW for commercial
and battery customers since our CEO acquired it in October 2017. Our storage
sits in our own [BatteryCube® cabinets](/batterycube), pad-mounted outdoors
alongside the utility transformers.
## What is a micro-grid, and how is it different from what you already have?
Three things are commonly confused. They solve different problems.
| | Standby generator | Grid-tied solar | Solar micro-grid |
| --- | --- | --- | --- |
| Cuts your bill day to day | No | Yes | Yes |
| Works during an outage | Yes | No | Yes |
| Depends on fuel delivery | Yes | No | No |
| Run time | While fuel lasts | Not applicable | Battery plus daily solar |
| Cost when nothing goes wrong | Maintenance only | Savings | Savings |
Grid-tied solar shuts down in an outage by design. Anti-islanding protection
stops an inverter energizing a line that a utility crew has been told is dead.
That protection is not negotiable, so a micro-grid works around it instead: it
opens a defined point of separation, and only then do the inverters form their
own grid on the isolated side.
## What actually happens when the grid drops?
1. The controller sees the utility fail and opens the point of common coupling.
2. The battery's power conversion system switches from following the grid to
forming one, setting voltage and frequency itself.
3. The critical-load panel is now the whole electrical world. Everything outside
it stays dark.
4. Solar restarts against the micro-grid it now sees and recharges the battery
while it discharges.
5. When the utility returns and stays stable, the controller resynchronizes and
closes back in.
The engineering that matters is in steps one and three. Transfer has to be fast
enough for the equipment you are protecting, and the critical-load panel has to
be drawn deliberately. Trying to island an entire facility is how micro-grid
budgets get out of hand.
## Which loads justify a micro-grid?
Three kinds of site account for most of the work we are asked to do as a
commercial microgrid installer.
### Poultry houses
Tunnel-ventilated houses depend on fans. In a Southeast summer, an outage stops
being an inconvenience and becomes a mortality event in a matter of hours. That
risk is why so many growers already own generators and pay to maintain them. A
micro-grid covers the same failure while paying something back every day the grid
stays up. We have installed over 4.8 MW on
[solar for poultry farms](/industries/poultry), including 450 kW on a 14-house
broiler operation.
### Hotels and resorts
A resort loses revenue the moment the guest experience stops, and on an island
grid the outages are neither rare nor short. Kitchens, cold storage, water
pumping, elevators and enough lighting to keep a property safe are the usual
critical-load list for [solar for hotels and resorts](/industries/hospitality).
### Cold storage and process loads
Refrigerated inventory has a clock on it, and some manufacturing lines cost more
to restart than to run. Both justify carrying a narrow set of loads rather than a
whole building.
The most expensive mistake in micro-grid design is deciding the critical-load
list after the equipment is priced. Every load you add raises both the power
rating and the battery size. We ask you to rank loads before we size anything.
## Why is the Caribbean a different problem?
Island grids are small, fuel-dependent and exposed. A hurricane season does not
just threaten a long outage; it changes what a building has to survive
structurally, and a poorly attached array becomes a liability to the roof it sits
on. We have built through that:
[the 800 kW solar installation at the Westin Dawn Beach Resort](/projects/westin-dawn-beach-resort-800kw-solar)
in St. Maarten, 451.5 kW of ground mount for the Virgin
Islands Port Authority in St. Thomas, and 157 kW at Divi
Little Bay Beach Resort. More on how we work in the region is on our
[commercial solar installation in the Caribbean](/commercial-solar-installation-caribbean)
page.
## Who engineers the interconnection?
Our VP of Engineering has worked on medium- and high-voltage
interconnections of utility-scale renewable generators since 1992 — photovoltaic,
hydroelectric and landfill gas. He is a Professional Engineer licensed in South
Carolina, North Carolina, Florida, Georgia, Virginia and Texas, a North Carolina
Licensed Electrical Contractor with the Unlimited Classification, and a NABCEP
board-certified Photovoltaic System Inspector.
Micro-grids are where that background earns its money. A system that can operate
islanded has to satisfy the utility that it will never energize their lines
unintentionally, and the protection scheme, relaying and single-line diagram are
what prove it. Chris produces those in-house, so the person who sealed the
drawing is the person who answers the utility's review comments. That is the
practical difference between a commercial microgrid installer and a solar
contractor who has added a battery to the price list.
## Where should you start?
Start with the outage you are actually afraid of, and what it costs per hour. If
that number is large, a micro-grid is worth designing. If it is small, a battery
sized purely for demand-charge reduction is the cheaper and better purchase.
Before you ask anyone for a price, read [what drives the cost of a commercial
microgrid](/insights/commercial-microgrid-cost): the four decisions that set the
number, in the order they move it.
Send us twelve months of utility bills and a ranked list of the loads you cannot
lose. We will come back with a critical-load panel, a battery size and a straight
answer about whether the outage risk justifies the equipment.
### Frequently asked questions
**What is a micro-grid?**
A micro-grid is a section of your electrical system that can generate, store and distribute its own power and keep running when the utility grid is down. It has generation, storage, a defined boundary and a controller that decides when to separate from the grid and when to reconnect. The boundary is the important part. A micro-grid protects the loads you put inside it, so deciding what goes inside is a business decision before it is an engineering one.
**How is a micro-grid different from a standby generator?**
A generator only earns its cost during an outage and needs fuel, exercise runs and a service contract to be there when you need it. A solar and battery micro-grid runs every day, cutting your bill when the grid is up and carrying critical loads when it is down. The trade is duration. A generator runs as long as fuel keeps arriving; a micro-grid runs on what it stored and what the sun replaces each day.
**Why does grid-tied solar shut off during a power outage?**
Because code requires it. A standard grid-tied inverter must stop exporting when the utility goes away, so it cannot energize lines that a utility crew believes are dead. That protection is called anti-islanding and it is not optional. To keep producing during an outage you need equipment that can deliberately disconnect from the utility and form its own grid behind a transfer point, which is exactly what a micro-grid adds.
**Do poultry houses need a micro-grid?**
Tunnel-ventilated poultry houses are one of the clearest cases for one. Birds depend on mechanical ventilation, and in Southeast summer heat an outage becomes a mortality event in a short time rather than an inconvenience. Many growers already run generators for exactly this reason. A micro-grid covers the same risk while also reducing the power bill on every day the grid stays up.
**How long can a micro-grid run without the grid?**
As long as the battery lasts, plus whatever the solar array replaces each day. Sizing follows from the loads you choose to carry, so a micro-grid built around ventilation fans, refrigeration or a kitchen will run far longer than one asked to carry an entire facility. In daylight, solar can recharge the battery while it is discharging, which is why solar and storage together outlast storage on its own.
**Can a micro-grid be added to an existing solar installation?**
Frequently yes, but it is more than adding a battery. The critical loads have to be separated onto their own panel, transfer equipment installed, and the inverters checked for whether they can operate off-grid at all. Many existing commercial arrays use grid-following inverters that cannot form a grid. We review the single-line diagram and the switchgear before quoting a conversion.
---
## Power Factor Correction Services for Commercial Sites
Source: https://www.owsolar.com/services/power-factor-correction
Topic: power factor correction services
Last updated: 2026-07-29
The cheapest fix on most commercial power bills. Correcting a poor power factor removes the utility penalty and often pays back faster than solar, so it should usually be done first.
{/* TODO PHOTO: an installed capacitor bank or corrected switchgear lineup at a
commercial site — cabinet doors open, capacitor stages and the controller
visible, taken square-on with the enclosure label legible but the customer name
not identifiable. A poultry house fan wall or a plant motor control center in the
background would be ideal. Request from Doug. */}
**Power factor correction services** are the cheapest electrical work on this
site, and on a motor-heavy facility they are usually the first thing worth doing.
A poor power factor means your utility is delivering more current than your
equipment converts into useful work, and most commercial tariffs charge you for
that. Correcting it removes a penalty you are paying every month for nothing in
return, and it does not require an interconnection agreement, a roof survey or a
tax credit to work.
We include a power factor review in every
[commercial solar EPC](/services/commercial-solar-epc) feasibility study, and we
sell correction on its own. If the review says correction is the better
investment and solar is not, that is what we will tell you.
## What are kW, kVA and kVAR?
Three numbers describe the same electricity.
- **kW — real power.** The part that turns a shaft, moves air, makes heat and
shows up as work. This is what your kilowatt-hour charge is built on.
- **kVAR — reactive power.** The part that magnetizes motor and transformer
windings. It does no work, but it has to be there, and it flows back and forth
between the utility and your equipment continuously.
- **kVA — apparent power.** The total the utility's wires, transformers and
substation must physically carry: real and reactive combined.
Power factor is kW divided by kVA. At a power factor of one, everything delivered
does work. At 0.80, the utility has to move roughly a
quarter more current to your site than your equipment converts into work. That
extra current heats their conductors and consumes their transformer capacity, so
they charge for it.
## How does a utility bill you for poor power factor?
Two ways, and you may be paying under either without noticing.
1. **An explicit penalty.** The tariff sets a threshold — commonly
0.90 or 0.95 — and adds a surcharge for each month you
fall below it. It appears as its own line, often abbreviated.
2. **Billing demand in kVA instead of kW.** No penalty line ever appears. The
demand charge is simply calculated on apparent power, so poor power factor
quietly inflates the largest number on the bill.
The second is easy to miss and often the more expensive of the two. Because
thresholds and rates differ by utility and by rate schedule, we read your actual
tariff rather than assume one. Send us
[twelve months of utility bills](/contact) and we will tell you which mechanism
is on your account and what it has cost you over the last year.
## Why do motor-heavy sites run a poor power factor?
Induction motors draw reactive power to build their magnetic fields, and they do
it whether they are working hard or barely working at all. So the sites with the
worst power factor are the ones running many motors for long hours, especially
motors that are oversized for their duty:
- **Poultry houses.** Banks of tunnel ventilation fans, feed augers and
circulation fans running through the growing cycle. This is one reason
[solar panels for poultry farms](/industries/poultry) so often come with a
correction recommendation attached.
- **Manufacturing and warehousing.** Compressors, pumps, conveyors, dust
collection and injection equipment, which is the usual profile behind
[solar for manufacturing facilities](/industries/manufacturing).
- **Cold storage.** Refrigeration compressors running near-continuously.
- **Dealership and shop environments.** Air compressors, lifts and welders that
spend much of the day lightly loaded.
Welders, variable frequency drives and LED retrofits complicate the picture,
because they introduce harmonics. On a site with significant harmonic content,
plain capacitors can resonate with the system and make things worse rather than
better. That is why the study comes before the equipment.
## What does correction cost, and what does it pay back?
Power factor correction services are priced from the kVAR the site needs, not
from the size of your building, which is why they are so often the best return on
the bill. It is common for a
correction project to pay for itself in a fraction of the time a solar array
takes, because the equipment is inexpensive relative to the penalty it removes.
Correction is cheap, fast and needs no utility approval to start saving. A solar
project takes months of engineering, permitting and interconnection review before
it produces a kilowatt-hour. Paying a power factor penalty throughout that period
when a capacitor bank would have ended it is money given away for no reason.
There is a limit worth stating: correction only removes the penalty. It does not
reduce the kilowatt-hours you consume. If your bill has no power factor charge
and no kVA demand billing, correction saves you nothing, and we will say so
rather than sell you a cabinet. The
[commercial solar savings calculator](/calculator) covers the consumption side of
the bill; correction covers the penalty side.
## What do OneWorld Solar's power factor correction services include?
1. **Bill and tariff review.** Twelve months of bills, and the rate schedule they
are billed under, to confirm a penalty exists and quantify it.
2. **Metering study.** Log real power, reactive power and harmonics at the
service and at major motor groups over a full production cycle.
3. **Design.** Fixed or automatically switched stages, detuned reactors where
harmonics require them, and a decision on whether to correct centrally at the
service or locally at the large motors.
4. **Installation.** Capacitor bank, switchgear connection and protection,
engineered and inspected as electrical work, not as an accessory.
5. **Verification.** Re-meter after commissioning and check the next two bills.
The penalty line should be gone. If it is not, we come back.
## What should you do first?
Look at last month's bill. If there is a power factor figure below one, or the
demand is stated in kVA, you have a problem worth about the price of a small
capacitor bank to solve. Fix that, then look at solar, then look at whether
[commercial battery storage](/services/battery-storage) can take down the demand
charge that remains. In that order, each step is sized against a load that has
already been cleaned up by the one before it.
### Frequently asked questions
**What is power factor, in plain English?**
Power factor is the ratio of the power your equipment actually converts into work to the total power the utility has to deliver to your service. A site at unity uses everything it is sent. A site at a poor power factor makes the utility carry extra current that does no useful work, which is why they bill you for it. Motors, transformers and fluorescent ballasts are the usual causes.
**How do I know if I am being billed a power factor penalty?**
Look at your utility bill for a line naming power factor, kVA demand, or a demand adjustment, and for a figure below one such as 0.82. Some utilities bill demand in kVA rather than kW, which charges you for poor power factor without ever naming it. If you send us twelve months of bills, we will identify which of the two is happening on your account and how much it is costing per year.
**How much does power factor correction cost?**
Far less than a solar array, and it scales with how much correction the site needs rather than with the size of the building. The main variables are the amount of correction required, whether harmonics on the site force detuned reactors instead of plain capacitors, and where in the distribution system the equipment lands. We quote it from a metering study, never from a nameplate estimate.
**Should I fix power factor before installing solar?**
Usually, yes. Correction is cheaper, faster to install and independent of interconnection approval, so it starts saving money while a solar project is still in the utility queue. It also cleans up the load profile that a solar and storage design is sized against. Fixing it afterward is possible but means paying the penalty throughout the months of a solar build for no reason.
**Will solar correct my power factor?**
Not by itself. Solar reduces the kilowatt-hours you buy, and some inverters can supply reactive power if they are specified and configured to do so, but a standard grid-tied array does nothing about the reactive demand of your motors. If anything, cutting real power while reactive demand stays the same can make the measured power factor at the meter worse.
**Which types of business benefit most from power factor correction?**
Sites where large induction motors run for long hours. Poultry houses with banks of tunnel ventilation fans, manufacturing plants with compressors, pumps and conveyors, cold storage, machine shops, and dealerships with shop air compressors and lifts. Lightly loaded motors are worse than fully loaded ones, so a site with oversized motors running part-loaded is often the best candidate of all.
---
# Products
## BatteryCube® Commercial Battery Energy Storage System
Source: https://www.owsolar.com/batterycube
Topic: commercial battery energy storage system
Last updated: 2026-09-04
OneWorld Solar's own line of outdoor pad-mounted battery cabinets, built around CATL cells. 55,000 lb of BatteryCube storage is in service at the Samsonite and TUMI site in Vidalia, Georgia.
BatteryCube is OneWorld Solar's own line of outdoor battery cabinets, and it is
the **commercial battery energy storage system** we install on our own projects.
The cabinets are pad-mounted on a concrete pad outside the building, typically
close to the service entrance and the utility transformers, and they hold CATL
cells. The name is a registered trademark of OneWorld Solar, with its own logo
and product identity.
The largest BatteryCube deployment to date is at the Samsonite and TUMI
distribution center in Vidalia, Georgia: 55,000 lb of batteries in BatteryCube
cabinets, paired with a 1.267 MW rooftop array on the same building.
## What are we willing to publish about BatteryCube?
Less than most product pages, deliberately.
We can tell you what the cabinets contain, where they go and what is in service
today. We are not going to publish per-cabinet energy ratings, C-rates, cycle
life, round-trip efficiency, enclosure ratings or warranty terms on a web page
until there is a current datasheet behind them. Battery specifications are
exactly the numbers a buyer builds a financial model on, and a number that turns
out to be optimistic eighteen months later is worse than no number at all.
Every entry in the specification table on this page is marked as pending
verification. If you are sizing a system, comparing bids or preparing a financing
package, ask us for the datasheet covering the configuration we are quoting. You
will get real figures for that configuration rather than a marketing range.
## What is inside a BatteryCube cabinet?
CATL cells. CATL is one of the largest lithium cell manufacturers in the world,
and using their cells means the part of the system with the longest service life
and the most demanding quality requirements comes from a manufacturer with real
volume behind it.
What the cabinet adds around those cells is the part that makes it a product
rather than a pallet of batteries: the enclosure, the thermal management, the
battery management system, the internal protection and the interface to the power
conversion equipment outside it. That integration is what we take responsibility
for when we deliver a system.
## Where is BatteryCube in service?
The Samsonite and TUMI build is the reference project for the product line. A
distribution center of that size has a load profile that solar alone cannot
flatten, which is the case that storage exists to answer. The full build is
written up in the
[Samsonite and TUMI 1.267 MW solar and battery case study](/projects/samsonite-tumi-1267kw-rooftop-solar-battery),
and the wider pattern for that kind of building is on our
[solar for manufacturing facilities](/industries/manufacturing) page.
## How is BatteryCube sited and installed?
Outdoors, on a pad, next to the transformers. That choice avoids most of the
argument that comes with putting energy storage inside an occupied building:
fire separation, ventilation, floor loading and the fire marshal's view of all
three. What it needs instead is:
- A concrete pad with the right bearing capacity and drainage.
- Clearances and setbacks that satisfy the local fire code and the utility.
- A conduit route to the service entrance and the power conversion equipment.
- Access for delivery and for future service, which is easy to forget when the
pad location is chosen for looks rather than for a truck.
We do the civil work, the pad, the switchgear interface and the interconnection
package as one scope, so there is no gap between the battery supplier and the
electrical contractor. There is only one of us.
## What does BatteryCube do on a commercial site?
Three jobs, and the design differs for each:
- **Demand-charge reduction.** Discharging against your billed kilowatt peak,
which is the part of a bill that solar cannot be relied on to touch. This is
the usual reason a site buys a commercial battery energy storage system, and it
is covered in detail on our
[commercial battery storage installation](/services/battery-storage) page.
- **Critical-load backup.** Carrying ventilation, refrigeration or a process line
through an outage instead of shutting the site down.
- **Micro-grid operation.** Islanding a defined section of the site and running
it independently until the utility returns. See
[commercial micro-grid design and installation](/services/micro-grids).
Which of the three you need is decided by your rate schedule and by what an
outage costs you per hour, not by the cabinet.
## Does BatteryCube qualify for the federal tax credit?
Battery storage is eligible property under the
[30% federal investment tax credit](/incentives/federal-solar-tax-credit),
including, in many cases, when it is installed without solar. We supply the
itemized cost basis, commissioning records and in-service dates your accountant
needs. We do not promise you the credit. Eligibility and the amount you can claim
depend on your tax position, and verifying that is the responsibility of you and
a Certified Tax Accountant.
## How do you specify a BatteryCube system?
Not by picking a cabinet count. A commercial battery energy storage system is
specified from a load shape, so start there. Send us twelve months of utility
bills and, if
the utility will release it, the interval data behind them. From the load shape we
size power and energy separately, work out how many kilowatts you need to shave
and for how long, and quote the configuration that meets it. Then you get the
datasheet for that configuration.
### Frequently asked questions
**What is BatteryCube?**
BatteryCube is OneWorld Solar's own registered line of commercial battery storage cabinets. The cabinets are pad-mounted outdoors on a commercial site, usually near the service entrance and the utility transformers, and they hold CATL cells. They are supplied and installed by OneWorld Solar as part of a battery storage or micro-grid project rather than sold as loose equipment through distribution.
**What cells are used in BatteryCube cabinets?**
CATL cells. That is the specification OneWorld Solar publishes today. The exact chemistry, module format, cell capacity and cycle rating are not published on this page because we will not put numbers in front of a buyer that we cannot back with a current datasheet. If you need those figures for an engineering review or a financing package, ask us and we will supply them for the configuration being quoted.
**How much energy does one BatteryCube cabinet store?**
The per-cabinet energy and power ratings are not published here yet. What we can state is the size of the largest deployment: 55,000 lb of batteries in BatteryCube cabinets at the Samsonite and TUMI distribution center in Vidalia, Georgia, alongside a 1.267 MW rooftop array. Systems are quoted in kilowatts and kilowatt-hours for your specific load profile, not in cabinet counts.
**Does BatteryCube go inside the building?**
No. BatteryCube cabinets are pad-mounted outdoors, which avoids the fire separation, ventilation and floor loading questions that come with putting energy storage inside an occupied building. Siting needs a concrete pad, a route for conduit to the service entrance, and clearances that satisfy the local fire marshal. We handle the pad, the setbacks and the permitting as part of the installation.
**Can BatteryCube be installed without solar?**
Yes. Storage and solar solve different parts of a utility bill, and there are sites where the demand charge is the problem and the array is not yet justified. BatteryCube can be installed as a standalone system for demand-charge reduction or backup, added to an existing solar array, or built at the same time as new solar under a single engineering, procurement and construction contract.
**Is BatteryCube a trademark?**
Yes. BatteryCube is a registered trademark of OneWorld Solar, with its own logo and product identity. It is a OneWorld Solar product line rather than a third-party cabinet with our name on it, which is why it appears in our project documentation and on our own installations across the Southeast.
---
# Industries
## Solar Panels for Poultry Farms and Chicken Houses
Source: https://www.owsolar.com/industries/poultry
Topic: solar panels for poultry farms
Last updated: 2026-07-29
Broiler and breeder houses have long metal roofs and a daytime fan load that lines up almost perfectly with the sun. We have installed over 4.8 MW on U.S. poultry farms, including a 450 kW 14-house broiler system.
If you run broiler or breeder houses, **solar panels for poultry farms** are one
of the few capital purchases that pay you back out of a cost you already carry
every month. Poultry houses are close to the ideal commercial solar building:
long uninterrupted metal roofs with almost nothing to shade them, a heavy
daytime electrical load, and a rural address that opens the door to federal
grant funding most businesses cannot touch.
OneWorld Solar has installed over 4.8 MW on U.S. poultry houses, and more than
2.5 MW across agriculture generally. We are headquartered in Vidalia, Georgia,
in the middle of poultry country, and we build the whole job under one contract:
engineering, the utility interconnection, construction and commissioning.
## Why do poultry houses suit solar so well?
Four things line up on a poultry farm that rarely line up elsewhere.
- **The roofs are made for it.** A house is a long, simple, unbroken metal plane
with no rooftop units, no skylights and no parapets. Racking goes down fast,
and our patented racking was developed on exactly this kind of structure.
- **Your biggest load happens in daylight.** Tunnel fans, stir fans and cool
cells run hardest on hot afternoons, which is precisely when the array
produces most. That means a high share of what you generate is consumed on
site rather than exported, and self-consumed power is worth full retail to you.
- **Well pumps and cool-cell pumps add to it.** Water moves during the day too.
- **Brooding heat is the exception.** It is usually propane rather than
electric, and it peaks in the dark and the cold. Solar does not touch it, and
we will say so on the proposal.
## How many kilowatts does a poultry farm need?
House count drives system size more than anything else. Three of our installed
systems show the pattern:
- **210 kW on a 6-house breeder farm.** Breeder houses run lighter ventilation
loads but longer lighting hours.
- **450 kW on a 14-house broiler farm.** See the
[450 kW 14-house broiler solar project](/projects/poultry-450kw-14-house-broiler-solar).
- **410 kW on a 16-house broiler farm.** Older, smaller houses with less fan
capacity per house, so a lower per-house figure than the 14-house farm.
Across those three, sizing lands somewhere around
25 kW to 35 kW per house, but do not size from that number.
Two farms with the same house count can differ by a third depending on tunnel
fan horsepower, whether you run LED or incandescent lighting, how many wells you
pump and how many flocks you place a year. We size from twelve months of bills.
## Roof mount or ground mount?
Both, and the answer is usually about the roof rather than the panels. Roof
mounting keeps the array over the load, costs nothing in land and needs no
site work. It only makes sense if the remaining roof life is comparable to the
array life. If your houses are due for re-roofing inside the next decade, you
are choosing to pay for a removal and reinstall later.
Ground mounts suit farms with a corner of unusable pasture near the service
entrance, older roofs, or purlin spacing that will not carry the load without
reinforcement. A ground mount also lets us orient the array properly rather than
accept the house's heading. We price solar panels for poultry farms both ways
when the roofs are marginal, and we assess both during the feasibility stage of
our [commercial solar EPC contract](/services/commercial-solar-epc).
## Which incentives apply to a poultry farm?
This is the part that changes the math for a grower, and it is worth more
attention than the equipment.
The **USDA Rural Energy for America Program** is the single biggest lever
available to a rural poultry operation. It is a competitive grant for
agricultural producers and rural small businesses, and it can cover a
substantial share of project cost, with the rest often carried by a guaranteed
loan. Awards are scored, so no contractor can promise you one, but poultry farms
score well because the energy use is documented and the site is unambiguously
rural. The full application process is set out on our
[USDA REAP grant for solar](/incentives/usda-reap-grant) page.
On top of that, the 30% federal investment tax credit, Section 179 and bonus
depreciation all apply to a farm the same way they apply to any other business.
Your accountant validates what you can actually claim; we supply the evidence
package.
## What about ventilation, outages and batteries?
Ventilation is the load that keeps growers awake. A summer outage in a
closed-house operation is measured in minutes before you have a serious problem,
which is why most farms already run generators.
Solar alone does not solve that, because a grid-tied inverter shuts down when
the grid goes down. What does solve it is a
[commercial micro-grid](/services/micro-grids) that can island the farm, or
[battery storage](/services/battery-storage) sized to carry tunnel fans and
controllers through an outage. On a farm with an aging generator, comparing the
cost of replacing it against a battery that also shaves your daily peaks is a
conversation worth having before you buy another diesel.
Solar will not cover night-time brooding heat, and it will not meaningfully
change your propane bill. It offsets electricity, mostly ventilation, lighting
and pumping, and it does that during daylight. Any proposal that shows a farm
going to a near-zero power bill year round has either oversized the array or
ignored your winter placement schedule.
## What have we actually built?
The [210 kW 6-house breeder solar installation](/projects/poultry-210kw-6-house-breeder-solar)
is the clearest example of what a smaller operation gets, and it sits alongside
the rest of our [commercial solar work by industry](/industries). For real
numbers
behind the arrays, including what drives
[poultry farm solar cost and results](/insights/solar-for-poultry-farms-cost-and-results),
start there and then run your own bill through the
[commercial solar savings calculator](/calculator).
Most of this work sits in
[commercial solar installation across Georgia](/commercial-solar-installation-georgia),
though we build for growers throughout the Southeast. Send twelve months of
bills and your house count, and we will tell you plainly whether solar panels
for poultry farms make sense on your site or whether they do not.
### Frequently asked questions
**How much does solar for a poultry farm cost?**
It depends far more on how many houses you run than on anything else. Our installed poultry systems range from a 210 kW array on a 6-house breeder farm to 450 kW on a 14-house broiler farm, and cost per watt falls as the system gets bigger. The honest way to price it is from twelve months of your power bills and a look at the roofs, because roof age, house spacing and the distance back to the meter all move the number.
**Will solar panels power my chicken houses at night?**
No, not without storage, and even then not economically for brooding heat. Solar produces during daylight, which is when your tunnel fans, cool cells and well pumps pull hardest, so the production curve matches your biggest load well. Night loads such as brooding heat and minimum ventilation still come from the utility or from propane. A battery can carry critical ventilation through an outage, which is a different and much more valuable job.
**Can I get a USDA REAP grant for solar on my poultry farm?**
Rural agricultural producers can apply, and poultry growers are among the strongest applicants because the energy use is well documented and the sites are clearly rural. REAP can cover a meaningful share of project cost, with the balance often financed by a guaranteed loan. Awards are competitive and scored, so nobody can promise you one. We prepare the technical and energy-assessment portions of the application as part of the project.
**Do the panels go on the poultry house roofs or on the ground?**
Both work, and we build both. House roofs are long, uninterrupted and usually south or east to west facing, which makes them efficient to rack and keeps the array close to the load. Ground mounts make sense when the roofs are older than the array will last, when the purlin spacing will not carry the load, or when you have unusable pasture close to the service entrance.
**Who gets the savings if I grow under an integrator contract?**
You do, in almost every case, because the grower normally pays the farm's electric bill even though the integrator owns the birds. That is what makes solar work on a contract farm: you carry the utility cost, so you keep the offset. Check your grower agreement for anything covering structures, roof modifications or equipment on the houses, and confirm the array does not affect your housing specification before you sign.
**Will solar panels damage my poultry house roof?**
Not if the attachments are engineered and flashed to the roof manufacturer's requirements, which is exactly what we do. The bigger risk is age, not damage. A 25-year array on a metal roof with eight years of life left commits you to paying for removal and reinstallation later. We check remaining roof life during the site walk and will recommend a ground mount if the roof does not justify the array.
---
## Solar for Car Dealerships and Auto Groups
Source: https://www.owsolar.com/industries/automotive
Topic: solar for car dealerships
Last updated: 2026-07-29
Dealerships burn power all day for showroom HVAC, lighting and service bays, then all night for lot lighting. We have built more than 1 MW across Woody Folsom Chevrolet, Ford and Chrysler Dodge.
**Solar for car dealerships** works for a plain reason: a dealership uses a lot
of electricity during business hours, and business hours are when the sun is
out. Showroom HVAC runs from open to close, the sales floor is lit to a
brightness no other retail format matches, service bays run compressors and lifts
all day, and the body shop adds ventilation and paint booth load on top.
OneWorld Solar has installed more than 1 MW across the Woody Folsom Automotive
Group, covering their Chevrolet, Ford and Chrysler Dodge stores in Georgia, plus
a 127 kW rooftop array at Headquarter Honda in Clermont, Florida. We build the
whole project under one contract, including the utility interconnection.
## What does a dealership's load profile actually look like?
Dealerships have an unusual load shape, and it matters for how you size a system.
- **Daytime base load is high and flat.** Showroom conditioning and lighting run
continuously through opening hours. Solar covers this almost perfectly.
- **Service and body shop load is spiky.** Compressors, lifts and paint booth
exhaust cycle hard, which is what sets your monthly demand charge.
- **Lot lighting runs all night.** Solar does nothing for it. If your lot
lighting is still metal halide, relamping to LED will usually beat adding
panels to cover the same kilowatt-hours.
- **EV charging is the new variable.** A Level 3 charger can add more peak
demand in fifteen minutes than the rest of the store draws all day.
That mix is why we read the tariff before we size the array. Reducing
kilowatt-hours and reducing peak kilowatts are two different jobs, and on a
demand-heavy dealership tariff the second one is often worth more.
## Rooftop array or solar canopy over the lot?
Solar for car dealerships comes down to two structures, and most stores can use
either. The right answer depends on the buildings.
A **rooftop array** on the showroom and service building is the cheaper path per
watt. There is no steel to buy and no foundation work, the array sits directly
over the load, and it is invisible from the customer approach, which keeps it
clear of most facility image questions.
A **solar canopy over the inventory lot** costs more per watt but does three
other things at once: it shades new inventory from heat and hail, it gives you
a structure to mount lot lighting and EV chargers on, and it is visible in a way
that a roof array is not. For a brand pushing an EV program, a canopy is often
the more useful asset even when the rooftop math looks better.
We model both and show you the two cash flows side by side rather than picking
one for you. Either way, the engineering runs through our
[commercial solar EPC contract](/services/commercial-solar-epc), so one company
carries the design, the permit, the interconnection and the build.
## How do you handle EV charging and demand charges?
This is the question that has changed the most in the last few years. Adding DC
fast charging to meet a manufacturer requirement can quietly reset your billing
demand for the entire month, because most commercial tariffs bill on the highest
fifteen-minute peak, regardless of when it happened.
Solar shaves that peak only if the charging happens at midday. Battery storage
shaves it whenever it happens. A
[commercial battery storage system](/services/battery-storage) discharging
alongside the charger keeps the meter from ever seeing the full spike, which
converts a variable demand charge into something you can predict.
Separately, service departments with a lot of motor load often carry a power
factor penalty they have never noticed on the bill.
[Power factor correction](/services/power-factor-correction) is usually the
cheapest kilowatt you will ever buy back, and we check for it before proposing
anything larger.
Solar will not reduce your overnight lot lighting cost. Grid-tied panels produce
nothing at 2 a.m., and sizing a battery to carry lot lighting all night rarely
pays for itself on a normal tariff. If overnight lighting is a large share of
your bill, fix the fixtures first and then size the array around what is left.
## What have we built for auto groups?
The [Woody Folsom Automotive 1 MW solar rollout](/projects/woody-folsom-automotive-1mw-solar)
is the clearest example of a multi-store program: three brands, three separate
buildings, one engineering package. The
[Headquarter Honda 127 kW rooftop solar project](/projects/headquarter-honda-127kw-rooftop-solar)
shows what a single Florida store looks like. Both sit alongside the rest of our
[commercial solar work by industry](/industries).
## Which incentives apply to a dealership?
Nothing about solar for car dealerships is treated differently by the tax code.
Dealerships are ordinary commercial taxpayers, so the full federal stack is
available. The 30% investment tax credit applies to the system. Accelerated and
bonus depreciation apply to the basis, and
[Section 179 solar depreciation](/incentives/section-179-solar) can pull a large
share of the deduction into year one, which matters if you had a strong year in
new and used sales. Your CPA validates what you can actually claim; we supply
the documentation.
For the arithmetic on how these change the timeline, our breakdown of the
[solar payback period for car dealerships](/insights/solar-payback-car-dealerships)
walks through the assumptions. Most of the automotive work sits within
[commercial solar installation in Georgia](/commercial-solar-installation-georgia),
though we build across the Southeast and Florida. Send twelve months of bills
for one store and we will model the group.
### Frequently asked questions
**How much does solar cost for a car dealership?**
Cost tracks system size, and dealership arrays are usually sized to the store rather than to the roof. Our automotive work runs from a 127 kW rooftop system at a single Honda store up to more than 1 MW across a three-brand auto group. The variables that actually move the price are the roof structure, how far the array sits from the service entrance, and whether canopies or battery storage are included.
**Can solar panels go over the inventory lot instead of the roof?**
Yes, and on many dealerships the lot is the better structure. Canopies use land you already pay for, shade inventory from heat and hail, and can carry EV charging and lot lighting directly. They cost more per watt than a rooftop array because of the steel and the foundations, so we usually model both and let the numbers decide rather than assuming one is right.
**Will solar help with the demand charges from EV fast charging?**
Solar alone helps only partly, because a DC fast charger can pull its peak at any hour, including after sunset. What controls that peak is battery storage discharging against the charger while it is running, so the meter never sees the full spike. If you are adding fast charging to meet a manufacturer program, model the demand charge before you sign, not after the first bill arrives.
**Does solar affect manufacturer facility image program compliance?**
It should not, but you need approval in writing before you build. Facility image standards govern signage, canopy design, lighting color and sightlines, and a lot canopy touches all four. Rooftop arrays are usually invisible from the customer approach and rarely raise questions. We design to whatever the brand standard requires and provide the drawings your factory representative needs to review.
**What is the payback period on dealership solar?**
Payback depends on your rate schedule far more than on your sunshine. A store on a demand-heavy commercial tariff with long showroom hours generally does better than one on a flat energy rate. Federal incentives shorten it considerably, since the 30% investment tax credit and accelerated depreciation both apply to a dealership. We model it from twelve months of your actual bills.
**Can you install solar across several dealerships at once?**
Yes. That is exactly what we did for the Woody Folsom Automotive Group, where more than 1 MW was built across Chevrolet, Ford and Chrysler Dodge stores. Multi-store rollouts are easier to finance and cheaper per watt because engineering, procurement and crew mobilization are shared. They also let you sequence stores so no single location has construction during its busiest month.
---
## Solar for Hotels and Resorts in the Southeast and Caribbean
Source: https://www.owsolar.com/industries/hospitality
Topic: solar for hotels and resorts
Last updated: 2026-09-04
Hotels run 24/7 and guest comfort is not negotiable. We built 800 kW at the Westin Dawn Beach Resort & Spa in St. Maarten and work across Florida, Georgia and the Caribbean.
**Solar for hotels and resorts** is a different problem from solar for an office
or a warehouse, because a hotel never turns off. Chillers run around the clock,
laundry runs seven days a week, kitchen refrigeration never stops, and pool
pumps and domestic hot water carry on regardless of how many rooms are sold.
That steady base load is exactly what a solar array is good at serving, and it
is why solar panels for hotels are one of the more predictable investments to
model in commercial solar.
OneWorld Solar built the 800 kW array at the Westin Dawn Beach Resort & Spa in
St. Maarten, along with 157 kW at the Divi Little Bay Beach Resort in
Phillipsburg and a 23 kW roof mount at the Homewood Suites by Hilton in
Savannah, Georgia. We work across Florida, Georgia and the Caribbean.
## Which hotel loads does solar actually offset?
Four load groups dominate a full-service property, and they behave differently.
- **Chillers and air handling.** The largest single load in a warm climate, and
it peaks in the afternoon, which lines up well with production.
- **Laundry.** Heavy, scheduled and usually daytime. Easy to serve directly.
- **Kitchen and refrigeration.** Continuous, with evening peaks in the kitchen.
- **Pool pumps, water features and domestic hot water.** Continuous, and often
the easiest load to shift into daylight hours with nothing more than a control
change.
That last point matters. On several properties the cheapest gain is not another
row of panels, it is moving pumping and laundry schedules into the production
window so more of what you generate is consumed on site.
## Why do island economics change the answer?
On the mainland, commercial solar competes against a relatively cheap grid.
In the Caribbean it competes against electricity generated from imported fuel,
and the difference is not small. A resort in St. Maarten, St. Thomas or the
wider region routinely pays a rate that is a multiple of what a comparable
property pays in Georgia or Florida. We work from your own number rather than a
published one: current island rate, $/kWh, from the latest bill.
The consequence is straightforward. The same array, at roughly the same
installed cost, pays back far faster on an island than it does on the mainland,
and a battery that would never justify itself on a cheap tariff can look
obvious. This is the core of our
[commercial solar installation work in the Caribbean](/commercial-solar-installation-caribbean),
and it is the reason the Westin project was built at the scale it was.
Island tariffs move with fuel surcharges, and published rates are often out of
date within a quarter. Any payback figure built on an assumed rate is a guess.
Send us twelve months of actual bills, including the fuel adjustment line, and
we will model against what you are really paying.
## What about hurricanes and outages?
For a hotel in the hurricane belt, resilience is worth as much as savings and
sometimes more. A property that can keep guest floors conditioned, elevators
moving and refrigeration cold through a regional outage protects both its guests
and its reputation.
Panels alone will not do it. A grid-tied inverter disconnects the moment the
utility fails, by design and by code. What does the job is a
[commercial micro-grid](/services/micro-grids) that can island the property, run
selected circuits from the array and
[commercial battery storage](/services/battery-storage), and bring the generator
in only when it is genuinely needed. That structure also cuts generator run
hours in normal operation, which is a real fuel saving on an island.
Mounting and attachment detailing carry the same weight. In a high-wind zone the
array has to be engineered to the local wind speed with the uplift calculations
to prove it, and that engineering is where our own patented racking earns its
place.
## What have we built in hospitality?
The [Westin Dawn Beach Resort 800 kW solar project](/projects/westin-dawn-beach-resort-800kw-solar)
is the reference for a large island property. At the other end of the range, the
[Homewood Suites by Hilton 23 kW rooftop solar installation](/projects/homewood-suites-hilton-23kw-solar)
shows what a select-service property with a small roof can do. Solar panels for
hotels of either size sit alongside the rest of our
[commercial solar work by industry](/industries), and the engineering behind all
of it is the same.
## How do you build on an occupied property?
Nobody books a room to watch a roof crew work. Construction on a live hotel is
sequenced around occupancy rather than around our convenience, which means
staged deliveries, defined crane windows, crew access routes kept off guest
paths, and one roof or one wing at a time so no large area of the property
closes at once. On a seasonal resort the practical answer is often to build in
your shoulder season and accept a slightly longer schedule.
The other timeline to plan for is approval. Branded and franchised properties
run roof modifications past the management company and the brand, and structural
review can take longer than the engineering itself. We provide sealed drawings
and calculations for that review as part of the project. Our VP of Engineering is a licensed Professional Engineer in Florida, Georgia, South
Carolina, North Carolina, Virginia and Texas and a NABCEP board-certified
Photovoltaic System Inspector.
If your property is on the mainland, our
[commercial solar installation in Florida](/commercial-solar-installation-florida)
covers the same ground with a very different tariff behind it. Either way, solar
for hotels and resorts starts the same way: send twelve months of bills and let
us tell you what the roof can carry.
### Frequently asked questions
**Do solar panels for hotels make financial sense?**
They do when the property runs a heavy 24-hour load, which most full-service hotels do. Chillers, laundry, kitchen refrigeration and pool pumps run every day of the year, and occupancy swings change the size of that load far less than owners expect. The economics improve sharply where electricity is expensive, which is why island and Caribbean resorts generally see much shorter paybacks than mainland properties.
**How much of a resort's power can solar actually cover?**
Usually a meaningful share of daytime consumption rather than the whole bill. Roof area is the limit on most hotels, because a tower has a small footprint relative to its load, while a low-rise resort with several buildings has far more usable roof. Adding battery storage shifts some of that daytime production into the evening peak, when restaurant, bar and guest room loads are highest.
**Will solar keep a hotel running during a hurricane outage?**
Only if the system is designed to island, and that is a specific engineering decision rather than a side effect of having panels. A standard grid-tied array shuts down when the utility goes down. A micro-grid with battery storage can disconnect from the grid and keep selected circuits alive, typically elevators, life safety, refrigeration, water pumping and a defined number of guest floors.
**Will construction disturb guests or close parts of the resort?**
It should not, and it is planned that way from the start. Roof work is staged so that crane picks, deliveries and noisy activity happen in defined windows and away from occupied areas. Access routes for crew and materials are kept off guest paths entirely where the building allows. On a phased job we work one roof or one wing at a time so the property never loses more than a small area.
**Does a franchise or brand have to approve a hotel solar project?**
In almost every case, yes. Branded properties operate under standards that cover roof modifications, exterior appearance, structural changes and sometimes equipment procurement, so the management company and the brand both need to sign off. Start that review early, because approval timelines frequently run longer than engineering does. We provide the drawings and structural calculations reviewers ask for.
**Is solar cheaper than diesel generation on a Caribbean island?**
Over the life of the system it usually is, because fuel is the dominant cost of island generation and sunlight is not. Most resorts already own generators for outages, so the real comparison is not solar against diesel but how many generator run-hours solar and storage remove each year. That comparison depends on your current rate and fuel cost, which we verify from your bills rather than assume.
---
## Solar for Manufacturing Facilities and Warehouses
Source: https://www.owsolar.com/industries/manufacturing
Topic: solar for manufacturing facilities
Last updated: 2026-07-29
A distribution center roof is usually the largest unused asset a manufacturer owns. We built 1.267 MW of rooftop solar and 55,000 lb of BatteryCube storage for Samsonite and TUMI in Vidalia, Georgia.
**Solar for manufacturing facilities** starts with an asset you already own and
are not using. A plant or distribution center typically sits under acres of flat
or low-slope roof that generates nothing, carries no rent and needs replacing on
a schedule anyway. Putting an array on it turns a maintenance liability into a
generating asset sitting directly behind your meter.
OneWorld Solar built the 1.267 MW rooftop array at the Samsonite and TUMI
facility in Vidalia, Georgia, paired with 55,000 lb of battery storage using
CATL cells in our own BatteryCube® cabinets. It is the largest single site we
have built and the clearest demonstration of what an industrial roof can do.
## What does an industrial electricity bill really cost you?
Industrial tariffs are not simple energy rates, and this is where most solar
proposals for manufacturers go wrong.
- **Energy charges** cover kilowatt-hours consumed. Solar reduces these
directly and predictably.
- **Demand charges** are set by your highest short peak in the billing period,
typically measured over fifteen minutes. Solar reduces these only if the peak
happened to occur at midday under a clear sky.
- **Ratchet clauses** carry a share of your highest peak forward for months
after it occurred. One unlucky startup sequence can set a floor on your bill
for the rest of the year.
- **Power factor penalties** appear when large motor loads pull reactive power.
Many plants pay these for years without noticing the line item.
Every proposal we write for solar for manufacturing facilities starts by reading
twelve months of bills and separating those four numbers. Sometimes the honest recommendation is
[power factor correction services](/services/power-factor-correction) first,
because correcting kVAR is often cheaper per dollar saved than adding a single
panel.
## Where does battery storage fit in a plant?
Where demand charges are a large share of the bill, storage frequently earns
more than incremental solar does. A battery discharges when you tell it to
rather than when the weather allows, so it can hold the meter below a target
demand level through a compressor start, a furnace cycle or a shift changeover.
That is the reasoning behind the Samsonite installation. The 55,000 lb of
[commercial battery storage](/services/battery-storage) there is doing three
jobs at once: clipping the peaks that set billing demand, moving midday
production into hours when the plant is drawing but the array is not producing,
and holding critical load through an interruption. The cabinets themselves are
[BatteryCube commercial battery energy storage](/batterycube) systems, designed
and branded by us.
## Does solar work if you run around the clock?
Here is the part that gets left out of most pitches.
A single-shift daytime plant is the best case for solar. Production and
consumption line up hour for hour, essentially everything generated is consumed
on site, and every kilowatt-hour is worth full retail rather than an export
rate.
A plant running second and third shifts is a different calculation. The daytime
production is still consumed, but a much larger share of your annual
consumption happens in the dark, so the array covers a smaller percentage of the
total bill. That does not make it a bad investment. It does mean the payback
model has to be built from your actual hourly profile rather than from an annual
kilowatt-hour total divided by twelve.
If your roof has fewer than ten years of life left, we will recommend you
re-roof first or go to a ground mount. Mounting a twenty-five year array on a
roof you will replace in eight is a decision to pay for removal and reinstall
later, and that cost is rarely in anyone's model. The same applies to a
ballasted system on a structure that has no spare load capacity.
## What has to be checked before design starts?
- **Structural capacity.** Metal roofs are assessed at the purlin, ballasted
roofs at the deck and frame. Either way the calculation is done and sealed,
not assumed.
- **Remaining roof life and warranty.** Attachment details are built to the roof
manufacturer's requirements so the existing warranty survives.
- **Service entrance and interconnection point.** On a large industrial service,
the distance from array to switchgear and the utility's protection
requirements can move the cost more than module pricing does.
- **Fire access and setbacks.** Code-required pathways reduce usable roof area,
sometimes significantly on a building with many roof units.
All of that sits inside a single
[commercial solar EPC contract](/services/commercial-solar-epc), so one company
carries the engineering, the permit set, the interconnection application and the
build. Our VP of Engineering is a licensed Professional
Engineer in Georgia, Florida, South Carolina, North Carolina, Virginia and
Texas, and has worked on medium- and high-voltage interconnections since 1992.
## What does the flagship project look like?
The full write-up of the
[Samsonite and TUMI 1.267 MW rooftop solar and battery project](/projects/samsonite-tumi-1267kw-rooftop-solar-battery)
covers the roof survey, the interconnection and how the storage was sized.
## Which incentives and reporting benefits apply?
Manufacturers are ordinary commercial taxpayers, so the 30% federal investment
tax credit applies, and
[Section 179 solar depreciation](/incentives/section-179-solar) plus bonus
depreciation can pull much of the deduction forward. Your tax advisor confirms
what you can claim; we provide the cost documentation and commissioning records.
Separately, on-site generation reduces reported Scope 2 emissions because it
displaces purchased electricity at the facility itself, with metered production
data your auditors can trace. That is increasingly what large customers ask
suppliers to evidence.
Most of this work sits within
[commercial solar installation in Georgia](/commercial-solar-installation-georgia).
If you want to see how solar for manufacturing facilities compares with what we
build elsewhere, our [commercial solar work by industry](/industries) covers
poultry, automotive and hospitality on the same terms.
### Frequently asked questions
**How much solar can a warehouse roof hold?**
Far more than most owners expect, and usually more than the building needs. A large distribution roof can often support an array bigger than the site's own consumption, which is why the constraint is normally the utility interconnection and the tariff rather than the square footage. Structural capacity and remaining roof life decide how much of that area is actually usable, so both are checked before anything is designed.
**Will solar reduce my demand charges?**
Partly, and less than most proposals suggest. Solar reduces the energy portion of your bill reliably, but demand charges are set by a short peak that can occur on a cloudy morning or after sunset. Battery storage is what controls the peak, because it discharges on demand rather than on weather. On a plant with a ratchet clause, one bad peak sets your billing floor for months, which raises the value of storage considerably.
**Does solar work for a plant running second and third shift?**
It works, but the answer is different and you should see the honest version. A single-shift daytime operation consumes almost everything the array produces, at full retail value. A plant running around the clock still uses the daytime production, but a much larger share of its consumption falls outside production hours, so solar alone covers a smaller fraction of the bill. Storage narrows the gap.
**Can solar panels go on an existing metal or ballasted roof?**
Usually yes, and the deciding factor is remaining roof life rather than roof type. A twenty-five year array on a roof with eight years left commits you to paying for removal and reinstallation later. Ballasted systems add weight that the structure has to carry, while mechanically attached systems add penetrations that must be flashed to the manufacturer's warranty requirements. We assess both during the feasibility study.
**What is the battery at Samsonite actually for?**
It does three jobs. It shaves the demand peaks that set the monthly billing demand, it shifts solar production into hours when the plant is drawing but the array is not producing, and it holds critical load through a utility interruption. The installation is 55,000 lb of CATL cells housed in OneWorld Solar BatteryCube cabinets, sitting alongside a 1.267 MW rooftop array in Vidalia, Georgia.
**Does rooftop solar help with Scope 2 emissions reporting?**
Yes, and directly. Electricity bought from the grid is Scope 2, so generation consumed on site reduces reported Scope 2 emissions without needing to buy certificates. Because the array is behind your meter and metered independently, the production data is auditable and traceable to a specific facility, which is what customer and supply-chain questionnaires increasingly ask for. We hand over monitoring access at commissioning.
---
# Locations
## Commercial Solar Installation Georgia Businesses Can Bank On
Source: https://www.owsolar.com/commercial-solar-installation-georgia
Topic: commercial solar installation Georgia
Last updated: 2026-07-29
Georgia is three electricity markets, not one. We design commercial solar around the utility that actually serves your meter — Georgia Power, an EMC or a municipal system — from our home office in Vidalia.
Electricity in Georgia is sold by three very different kinds of utility, and
which one serves your meter changes the economics of solar more than the brand of
module on your roof ever will. What makes a **commercial solar installation
Georgia** businesses can bank on is not the hardware. It is designing the array
around the rate schedule, the interconnection rules and the incentive stack that
actually apply at your service address.
OneWorld Solar is headquartered at 609 Church Street in Vidalia, in the middle of
south Georgia's poultry and agriculture belt. The company was founded in 2001,
which makes it the oldest solar company in the Southeast. Our CEO acquired it
in October 2017 and rebuilt it around large commercial and agricultural
customers; since then we have installed more than 7.8 MW. Our largest single
array — 1.267 MW of rooftop solar with 55,000 lb of battery storage at the
Samsonite and TUMI distribution center — is in the same town as our office.
## Who sells you power in Georgia, and why does it matter?
Three answers, three different projects.
**Georgia Power** is the investor-owned utility, regulated by the Georgia Public
Service Commission. Its commercial customers sit on published rate schedules, and
the Commission approves those schedules, the interconnection tariff and the
company's long-range resource plans in public dockets. That is genuinely useful
to you: the rules are written down and you can read them. Customers on
Georgia Power's commercial rate schedules typically pay a
meaningful share of their bill as demand charges, so the design question is not
only how much energy the array makes but when it makes it against your peak.
**Electric Membership Corporations** serve most of rural Georgia. There are
dozens of them, they are member-owned cooperatives run by elected boards, and
they buy most of their wholesale power through Oglethorpe Power. Each one sets
its own interconnection policy, system size limits and buyback
arrangement. Two poultry farms ten miles apart on different EMCs can
get different answers to the same question. We read the specific co-op's current
policy for every job rather than assuming.
**Municipal utilities** — cities that own their distribution system and buy
wholesale power through the Municipal Electric Authority of Georgia — are the
third case. Their interconnection and buyback terms are set
locally, and long-term wholesale supply contracts can shape how a city treats
behind-the-meter generation. Verify current terms with the city before you sign
anything.
The rate schedule code printed on your bill tells us more than a satellite image
of your roof does. Demand charges, ratchet clauses, power factor penalties and
time-of-use windows decide whether solar alone, solar plus
[commercial battery storage](/services/battery-storage), or
[power factor correction](/services/power-factor-correction) first is the right
investment. On some Georgia tariffs, a smaller array plus storage beats a bigger
array on its own.
## Which incentives apply to commercial solar in Georgia?
The federal stack does the heavy lifting here. The
[30% federal solar investment tax credit](/incentives/federal-solar-tax-credit)
and [Section 179 and bonus depreciation](/incentives/section-179-solar) apply to
Georgia businesses the same way they apply anywhere in the US, and for rural and
agricultural sites the [USDA REAP grant](/incentives/usda-reap-grant) can cover a
substantial share of project cost.
At the state level, Georgia has historically offered
no broad statewide commercial solar tax credit comparable to the
federal ITC, and utility-run rebate or program capacity is
limited and periodically re-opened rather than permanently
available. Treat any state or utility program as something to verify
in writing this quarter, not something to assume. We will never model a savings
number on an incentive we have not confirmed is open.
## Why does south Georgia poultry come up so often?
Because the load profile fits. Broiler and breeder houses run tunnel ventilation,
lighting and heating hard, year-round, on rural three-phase service — and they
sit on land with clear southern exposure. They are also usually eligible rural
small businesses or agricultural producers for REAP purposes. We have installed
more than 4.8 MW on US poultry operations, including named systems at 210 kW on a
six-house breeder farm, 450 kW on a 14-house broiler farm and 410 kW on a
16-house broiler farm. A commercial solar installation Georgia growers can
finance usually comes down to how well the REAP application was put together, so
we build that package as part of the job. If you run houses, start with
[solar panels for poultry farms](/industries/poultry).
## What has OneWorld Solar actually built in Georgia?
Beyond those: 1.2 MW of ground mount across four Georgia Power facilities, the
[Swainsboro Supply 117 kW ground mount solar case
study](/projects/swainsboro-supply-117kw-ground-mount-solar), 23 kW on the roof of
the Homewood Suites by Hilton in Savannah, a 15 kW laminate canopy at the Southface
Eco Office in Atlanta, 200 kW pole top at the Dr. Sidney Smith farm near
Savannah, and 25 kW at Sweetwater Creek State Park. The
[Samsonite and TUMI 1.267 MW rooftop solar and battery case
study](/projects/samsonite-tumi-1267kw-rooftop-solar-battery) is the one to read
if you run a distribution center or plant; the
[Woody Folsom 1 MW dealership solar case
study](/projects/woody-folsom-automotive-1mw-solar) is the one to read if you
sell cars.
Working for Georgia Power on its own facilities is worth a sentence on its own.
Utilities are the hardest customers to satisfy on documentation, workmanship and
interconnection compliance, and they do not hand that work to contractors who
improvise.
## Who does the engineering and permitting?
Our VP of Engineering is a Professional Engineer licensed in
Georgia, South Carolina, North Carolina, Florida, Virginia and Texas, a NABCEP
board-certified Photovoltaic System Inspector, and has worked on medium- and
high-voltage interconnections of utility-scale renewable generators since 1992.
Drawings are sealed in-house, so the engineer who stamped the set is the one who
answers the utility's review comments — not a subcontractor three states away.
The rest of the scope is described on our
[commercial solar EPC contractor](/services/commercial-solar-epc) page:
feasibility, engineering, procurement, construction, interconnection and
commissioning under one contract. Related work in
[manufacturing and warehousing](/industries/manufacturing) and at
[car dealerships](/industries/automotive) follows the same process.
## What is the next step?
We handle commercial solar installation Georgia wide — Atlanta metro to the
coast, Georgia Power territory to the smallest EMC. Send twelve months of bills
and the service address. We will identify the utility and rate schedule, tell you
honestly whether your site is a good candidate, and put a number on it. For
ranges before you talk to anyone, read
[how much commercial solar costs per kW in Georgia](/insights/commercial-solar-cost-per-kw-georgia).
Run your own first pass with the
[commercial solar savings calculator](/calculator), or
[talk to our Vidalia office](/contact) about a site walk.
### Frequently asked questions
**Does Georgia have net metering for commercial solar?**
Georgia does not have a single statewide net metering rule that applies to every business. What you are credited for exported power depends on whether Georgia Power, an Electric Membership Corporation or a municipal utility serves your meter, and each sets its own terms. Because those terms are revised periodically, we pull your current rate schedule and the utility's current interconnection tariff before we model savings, and we recommend you verify them with the utility too.
**Who regulates commercial solar interconnection in Georgia?**
The Georgia Public Service Commission regulates Georgia Power, the state's investor-owned utility, and approves its rate schedules and resource plans. Electric Membership Corporations are member-owned cooperatives governed by their own elected boards, and municipal systems answer to their city governments. That is why an interconnection question with a clear answer in Georgia Power territory can have a completely different answer twenty miles away.
**Do I need a Professional Engineer stamp for commercial solar in Georgia?**
Commercial permit sets in Georgia are generally expected to carry a Professional Engineer seal, and utilities routinely require sealed single-line diagrams with an interconnection application. Requirements vary by authority having jurisdiction, so we confirm with the local building department before design starts. Our VP of Engineering is a licensed PE in Georgia and seals our drawings in-house rather than subcontracting them.
**Can a Georgia poultry farm get a REAP grant for solar?**
Poultry operations in rural Georgia are among the strongest candidates for a USDA REAP grant, because they are agricultural producers with high, year-round electrical loads for ventilation, lighting and heating. A grant is applied for and awarded by USDA, never guaranteed by us. We prepare the technical and energy-assessment portions of the application and work with your accountant on the rest.
**How long does a commercial solar installation take in Georgia?**
Plan on four to nine months from signed contract to energization for a 250 kW to 1 MW array. Engineering, permitting and the utility interconnection study take roughly six to twelve weeks and run in parallel with procurement. The utility queue is usually the longest item in the schedule, which is why we file the interconnection application as soon as the design supports it rather than waiting for construction.
**Does OneWorld Solar work outside south Georgia?**
Yes. We are based in Vidalia and much of our work is in the southern half of the state, but we have built in Atlanta, Savannah, Swainsboro, Baxley and across the Georgia Power service territory, as well as in Florida, the Carolinas and the Caribbean. Travel distance affects mobilization cost on smaller systems, which we show as a line item rather than burying it in the price per watt.
---
## Commercial Solar Installation Florida: Built for Hurricane Country
Source: https://www.owsolar.com/commercial-solar-installation-florida
Topic: commercial solar installation Florida
Last updated: 2026-07-29
Florida commercial solar lives or dies on two things the brochure never mentions: uplift under hurricane wind loads and what salt air does to fasteners. We engineer for both, in investor-owned and municipal utility territory alike.
Two things decide whether a **commercial solar installation Florida** side of the
Georgia line still looks like a good decision in year ten, and neither of them
appears on a module datasheet. The first is whether the attachment was engineered
for real hurricane wind uplift on your roof, in your exposure category. The
second is whether the hardware holding it down was specified for salt air. Get
those wrong and you have a liability bolted to your building.
OneWorld Solar has been building in Florida for years from our base in Vidalia,
Georgia, including work for two Florida utilities on their own property. We were
founded in 2001, have installed more than 7.8 MW for commercial and agricultural
customers, and hold patents on our own solar racking awarded in 2020 and 2025 —
which matters more in Florida than anywhere else we work, because racking is
where wind loads are resolved.
{/* TODO PHOTO: rooftop drone shot of the 102 kW Valencia College array in Orlando,
shot mid-morning with the campus buildings visible for scale. Landscape, minimum
2000px wide. Request from Doug. */}
## How does wind-load engineering change a Florida solar design?
Everywhere else in the Southeast, structural design is a check performed on a
layout that already exists. In Florida it is an input that changes the layout.
Design wind speeds under the Florida Building Code vary by county, exposure and
risk category, and the high-velocity hurricane zone in the south-east of the
state is stricter again. Corner and edge zones of a roof see far higher uplift
pressures than the field, so a compliant array often has denser attachment at the
perimeter, a larger setback from the roof edge, or fewer modules than a
back-of-envelope layout promised. Ballasted systems that are perfectly normal in
Georgia are frequently the wrong answer in Florida.
None of that is optional, and it is checkable. Your plan reviewer will ask for
the calculations, your insurer may ask for them, and after a named storm your
carrier will certainly ask what the array was designed to. Requirements are
revised between code cycles, so confirm the
currently adopted Florida Building Code edition and design wind speed
for your address with the building department rather than relying on a
prior project.
We will not sign off a rooftop array in Florida on a manufacturer's generic
attachment table. Uplift is calculated for your building, your roof height and
your exposure, and if the roof structure cannot take it we will say so and price
a ground mount or a canopy instead. A cheap layout that fails the wind
calculation is not cheap.
## Who is your Florida utility, and why does it change the answer?
Florida Power & Light, Duke Energy Florida and Tampa Electric are investor-owned
utilities regulated by the Florida Public Service Commission, which approves
their rate schedules and interconnection tariffs in public dockets. Orlando
Utilities Commission and JEA in Jacksonville are municipal utilities owned by
their communities. They set their own commercial rates, interconnection
requirements and any local programs — and they behave differently enough that we
treat them as separate markets.
Whatever the utility, the design driver is usually the demand charge rather than
the energy rate. Customers on Florida commercial demand-based
schedules often find that shaving the afternoon peak is worth more
than raw kilowatt-hours, which pushes the conversation toward
[commercial battery storage](/services/battery-storage) alongside the array.
Any credit for exported energy sits under each utility's current net
metering or net billing terms — verify those in writing with the
utility before you sign, because they have been revised more than once.
## Which incentives apply in Florida?
The federal stack is the core:
[the 30% federal solar investment tax credit](/incentives/federal-solar-tax-credit)
and [Section 179 and bonus depreciation](/incentives/section-179-solar). Florida
has no state corporate income tax credit for solar, though
sales and property tax treatment for renewable equipment has historically been
favorable — confirm current Florida sales and property tax exemptions
for solar with your tax advisor. Agricultural and rural operations,
including packing houses and groves, should also look at the
[USDA REAP grant for solar](/incentives/usda-reap-grant).
## What has OneWorld Solar built in Florida?
Also in Florida: the
[Orlando Utilities Commission 32 kW solar canopy](/projects/orlando-utilities-commission-32kw-solar-canopy),
the [TECO Manatee Viewing Center 32 kW array](/projects/teco-manatee-viewing-center-32kw-solar),
25 kW on First Presbyterian Church in Tallahassee, and 20 kW at First Green Bank
in Mount Dora. Two of those clients are utilities. Utilities are the least forgiving
customers in this business on documentation, workmanship and interconnection
compliance, and they do not hand that work to contractors who improvise. The
[Valencia College 102 kW rooftop solar case
study](/projects/valencia-college-102kw-rooftop-solar) walks through how we
sequenced construction around an occupied campus.
## Does this work for Florida hotels and resorts?
A commercial solar installation Florida hotel owners can insure and finance is
one of the better fits in the state. Hotels run heavy, predictable daytime
loads — air conditioning, laundry, kitchens, pool plant — with large flat roofs
and parking areas, and Florida's tourism economy means those loads run
year-round. Our 800 kW array at the Westin Dawn Beach Resort informs how we
approach [solar for hotels and resorts](/industries/hospitality), and the same
logic applies to dealerships under
[solar for car dealerships](/industries/automotive).
The full scope — feasibility, engineering, procurement, construction,
interconnection and commissioning under one contract — is on our
[commercial solar EPC contractor](/services/commercial-solar-epc) page. We take
on commercial solar installation Florida wide, from Tallahassee and Mount Dora to
Orlando, Clermont and Tampa. To get a first number, use the
[commercial solar savings calculator](/calculator) or
[send us twelve months of bills](/contact) and the service address.
### Frequently asked questions
**Do I need a Professional Engineer stamp for commercial solar in Florida?**
Yes, in practice. Florida building departments expect sealed structural and electrical drawings for a commercial rooftop array, and the structural calculations have to demonstrate the attachment resists design wind uplift. Utilities also want a sealed single-line diagram with the interconnection application. Our VP of Engineering is a licensed Professional Engineer in Florida and seals our drawings in-house, so the engineer who stamped the set answers the plan reviewer's comments.
**Will a commercial solar array survive a hurricane in Florida?**
A properly engineered array is designed to. The failure mode in a hurricane is almost never the module itself; it is the attachment, the module clamp or the ballast assumption. That means real uplift calculations for your roof zone and exposure category, attachment spacing derived from those calculations rather than from a manufacturer's generic table, and hardware that has not corroded in the intervening years. Ask any contractor to show you the wind calculations.
**Does Florida have net metering for commercial solar?**
Florida's investor-owned utilities have long operated net metering programs approved by the Florida Public Service Commission, but terms have been revised over time and municipal utilities set their own rules independently. Because credit rates, system size thresholds and application requirements change, we pull the current interconnection tariff for your specific utility before modeling savings, and we recommend you confirm the terms with the utility in writing.
**How is solar different in Orlando Utilities Commission or JEA territory?**
Municipal utilities like OUC in Orlando and JEA in Jacksonville are owned by their communities and are not rate-regulated by the Florida Public Service Commission the way FPL, Duke Energy Florida and Tampa Electric are. They set their own interconnection requirements, commercial rate structures and any incentive programs locally. The practical effect is that a design that pencils in one territory may need resizing a county away.
**Does salt air damage commercial solar equipment in Florida?**
It attacks the fasteners and the connections long before it touches the modules. Within a few miles of the coast we specify appropriate stainless hardware, isolate dissimilar metals at every contact point, and pay close attention to enclosure ratings and conduit fittings. Skipping that detailing is invisible on the day of commissioning and expensive five years later, which is why we treat it as part of the engineering rather than an upgrade.
**What size commercial solar systems do you build in Florida?**
Our Florida portfolio runs from roughly 20 kW to just over 125 kW on a single site, including 102 kW at Valencia College in Orlando and 127 kW at Headquarter Honda in Clermont, and our largest projects elsewhere exceed 1 MW. Below about 50 kW the economics depend heavily on your rate structure, so we will tell you plainly if a site is too small to justify the engineering.
---
## Commercial Solar Installation South Carolina: Engineering First
Source: https://www.owsolar.com/commercial-solar-installation-south-carolina
Topic: commercial solar installation South Carolina
Last updated: 2026-07-29
South Carolina has four kinds of utility and four sets of rules. We bring a PE licensed in the state, a working relationship with Santee Cooper, and a straight account of what we have and have not built here.
A **commercial solar installation South Carolina** businesses can rely on starts
with a question that has four different answers here: who sells you power?
Dominion Energy South Carolina and the two Duke operating companies are
investor-owned utilities regulated by the South Carolina Public Service
Commission. Santee Cooper is a state-owned utility answering to its own board.
And the state's electric cooperatives serve much of the rural interior, buying
their wholesale power through the cooperative system. Each sets its own
interconnection process, and the answer you get from a neighbor in another
territory may be worthless to you.
OneWorld Solar is based in Vidalia, Georgia, was founded in 2001, and has
installed more than 7.8 MW for commercial and agricultural customers. We should
be straight with you about South Carolina specifically: our portfolio here is
smaller than our Georgia one. What we bring to a project in this state is
engineering credentials that are current and in-state, and a working relationship
with the state-owned utility.
{/* TODO PHOTO: rooftop photo of the 15 kW Coastal Carolina University array in
Conway, with the building and campus context visible. Landscape, minimum 2000px
wide. Request from Doug. */}
## Who is licensed to seal your drawings?
Our VP of Engineering is a Professional Engineer licensed in
South Carolina — along with North Carolina, Florida, Georgia, Virginia and Texas
— a NABCEP board-certified Photovoltaic System Inspector, and a North Carolina
Licensed Electrical Contractor with the Unlimited Classification held since 1992.
Since that same year he has worked on medium- and high-voltage interconnections
of utility-scale renewable generators: photovoltaic, hydroelectric and landfill
gas.
That is not a decoration on a brochure. On a commercial project it decides three
practical things. Whether your permit set can be sealed without hiring an outside
engineer and waiting on their schedule. Whether the person who answers the
utility's review comments actually drew the single line. And whether somebody
looks at your site for interconnection compatibility and congestion constraints
*before* the design is committed, which is far cheaper than discovering a problem
during the utility study.
## What does the South Carolina utility landscape mean in practice?
**Dominion Energy South Carolina and Duke Energy Carolinas / Duke Energy
Progress.** Investor-owned, with rate schedules and interconnection tariffs
approved by the South Carolina Public Service Commission in public dockets. The
rules are published, which is useful, but they are also revised. Commercial
customers on Dominion and Duke demand-based commercial
schedules usually find the demand charge, not the energy rate, is what
solar and storage have to attack.
**Santee Cooper.** The state-owned utility, and a OneWorld Solar client. Its
governance and its wholesale relationship with the state's cooperatives make it a
different animal from an investor-owned utility, and
its interconnection and commercial rate terms are set
through its own process. Verify current terms directly.
**The cooperatives.** Member-owned, elected boards, each with its own
interconnection policy and system size thresholds. Two
manufacturing plants forty miles apart can face genuinely different rules.
South Carolina's treatment of exported solar energy has been rewritten by the
legislature and the Public Service Commission more than once in the last decade,
and successor tariffs have replaced earlier programs. We will not put a
credit rate or program cap in a proposal that we have not
pulled from the utility's current tariff that quarter — and you should ask any
contractor who does where their number came from.
## Which incentives apply in South Carolina?
The federal stack is what carries a commercial project:
[the 30% federal solar investment tax credit](/incentives/federal-solar-tax-credit)
and [Section 179 and bonus depreciation](/incentives/section-179-solar). Rural
and agricultural operations — and South Carolina has plenty, from poultry to row
crop to timber — should look hard at the
[USDA REAP grant for solar](/incentives/usda-reap-grant), which can cover a
meaningful share of project cost for eligible rural small businesses. Grants are
awarded by USDA, never promised by us. Any
state-level South Carolina credit or exemption should be
confirmed with your tax advisor before it goes into a payback model.
## What have we built in South Carolina?
The Coastal Carolina University array in Conway is a small system, and we are not
going to inflate it. What it demonstrates is working on an occupied institutional
campus with a facilities department, a plan reviewer and a utility all needing to
agree. You can see the rest of our work on
[all commercial solar projects](/projects).
For a sense of the scale we work at when the site supports it, look at the
[Samsonite and TUMI 1.267 MW rooftop solar and battery case
study](/projects/samsonite-tumi-1267kw-rooftop-solar-battery) in Vidalia, and at
how we approach [solar for manufacturing facilities](/industries/manufacturing).
Most of the commercial solar installation South Carolina buyers ask us about
falls into two groups: institutional campuses and industrial plants.
South Carolina's automotive, tire, aerospace and textile plants have the roof
area, the three-phase service and the daytime load profile that make commercial
solar work, often paired with
[commercial battery storage](/services/battery-storage) to attack the demand
charge.
## How do we start?
The scope is described in full on our
[commercial solar EPC contractor](/services/commercial-solar-epc) page, and we
quote commercial solar installation South Carolina wide, from the Grand Strand to
the Upstate. Send twelve months of bills and your service address; we
will identify your utility and rate schedule and tell you whether the site is
worth engineering. Get a first estimate from the
[commercial solar savings calculator](/calculator), or
[ask us for a South Carolina site walk](/contact).
### Frequently asked questions
**Do I need a Professional Engineer stamp for commercial solar in South Carolina?**
For a commercial array, expect to need one. South Carolina building officials generally require sealed structural and electrical drawings for commercial photovoltaic systems, and utilities want a sealed single-line diagram with the interconnection package. Our VP of Engineering is a Professional Engineer licensed in South Carolina and seals our sets in-house, which means the engineer who stamped the drawing is the person who answers plan review and utility comments.
**How is Santee Cooper different from Duke or Dominion?**
Santee Cooper is a state-owned utility, created by the state and governed by its own board rather than being an investor-owned company answering to shareholders. It also supplies wholesale power to South Carolina's electric cooperatives. That changes who sets interconnection and rate terms and who you negotiate with. OneWorld Solar has worked with Santee Cooper, which is one reason we are comfortable in that part of the state.
**Does South Carolina have net metering for commercial solar?**
South Carolina's rules for compensating exported solar have been rewritten more than once by the legislature and the Public Service Commission, and the terms differ between the investor-owned utilities, Santee Cooper and each cooperative. Rather than quote a rate that may already be superseded, we obtain the current tariff for your specific utility before modeling savings and recommend you verify it with the utility directly.
**Is there a South Carolina state tax credit for commercial solar?**
South Carolina's better known solar tax credit has historically been oriented toward residential systems, and state incentive programs change with each legislative session. For a commercial project the federal investment tax credit and depreciation are the load-bearing incentives. Ask your tax advisor to confirm what state-level credits or exemptions your business actually qualifies for before you count them in a payback calculation.
**How much commercial solar has OneWorld Solar built in South Carolina?**
Less than in Georgia, and we would rather say so. Our named South Carolina installation is a 15 kW rooftop array at Coastal Carolina University in Conway, and we have worked with Santee Cooper. Our overall portfolio exceeds 7.8 MW, including a 1.267 MW rooftop and battery project in Georgia, and the engineering that governs a South Carolina project is the same engineering.
**Who handles the interconnection application in South Carolina?**
We do, as part of the EPC scope. Our VP of Engineering has worked on medium- and high-voltage interconnections of utility-scale renewable generators since 1992, including photovoltaic, hydroelectric and landfill gas plants in the Carolinas. We prepare the single-line diagram and technical data package, file the application early because the utility queue is usually the longest item in the schedule, and see it through to the witness test.
---
## Commercial Solar Installation North Carolina: Licensed and Sealed
Source: https://www.owsolar.com/commercial-solar-installation-north-carolina
Topic: commercial solar installation North Carolina
Last updated: 2026-07-29
North Carolina work is governed by Duke's interconnection process and by who is licensed to sign for it. Our VP of Engineering has held an NC Unlimited electrical contractor certificate since 1992 and is a PE in the state.
A **commercial solar installation North Carolina** project succeeds or stalls on
two things: whether the design clears the utility's interconnection process, and
whether the people signing for it are licensed in this state to do so. North
Carolina takes both seriously, and so do we.
OneWorld Solar is a commercial solar EPC contractor founded in 2001 and based in
Vidalia, Georgia, with more than 7.8 MW installed for commercial and agricultural
customers. Our completed project portfolio is concentrated in Georgia, Florida
and the Caribbean rather than North Carolina — we would rather say that than pad
a list. What we bring across the state line is the licensure and the
interconnection experience the work actually requires.
{/* TODO PHOTO: a North Carolina commercial rooftop or ground-mount array, ideally a
poultry operation or a distribution center, landscape, minimum 2000px wide.
If no NC photo exists, request permission to caption a comparable Georgia site. */}
{/* TODO CONTENT: ask Doug for at least one named North Carolina reference project — this page is credibility-light without one. */}
## Who is licensed to do this work in North Carolina?
Our VP of Engineering has held a **North Carolina Licensed
Electrical Contractor certificate with the Unlimited Classification since 1992**
and is a **Professional Engineer licensed in North Carolina**, as well as in
South Carolina, Florida, Georgia, Virginia and Texas. He is also a NABCEP
board-certified Photovoltaic System Inspector.
Since 1992 his work has been the medium- and high-voltage interconnection of
utility-scale renewable generators — photovoltaic, hydroelectric and landfill gas
— much of it in the Carolinas. In practice that means vetting a site for
interconnection compatibility and congestion constraints before a layout is
committed, producing the preliminary site layout, the interconnection application
technical data and the single-line diagram, and then defending that package
through the utility's review.
That is the sequence that goes wrong on badly run projects. A layout gets drawn,
a price gets quoted, and only then does anyone check whether the point of
interconnection can absorb the generation. By that stage the customer has a
number in their head that the engineering cannot support.
## What does the North Carolina utility landscape look like?
**Duke Energy Carolinas and Duke Energy Progress** are separate operating
companies under the same parent, with separate service territories, separate rate
schedules and separate interconnection queues. Knowing which one serves your
meter is the first question, not a detail. Commercial customers on
Duke's North Carolina demand-based commercial schedules
generally find the demand charge is what a solar and storage design has to
attack, not the energy rate alone.
**Dominion Energy North Carolina** serves the northeastern part of the state and
operates under its own approved schedules.
**Electric membership corporations** serve much of rural North Carolina. They are
member-owned cooperatives with elected boards, and each sets its own
interconnection policy, size thresholds and any local
program. If you farm, you are probably on one of these, and the answer
your neighbor got in Duke territory may not apply to you.
The North Carolina Utilities Commission regulates the investor-owned utilities
and approves their tariffs and the state's interconnection procedures. Those
procedures and any rebate or incentive program capacity have
been revised repeatedly, and some earlier programs have closed. Verify current
terms with the utility rather than trusting an article — including this one — to
still be accurate on the day you apply.
On commercial projects the utility queue, not construction, is usually the
longest item in the calendar. We file the interconnection application as soon as
the design supports it and treat any study timeline or queue
position as something the utility confirms, not something we promise.
## Why does poultry keep coming up in North Carolina?
Because North Carolina has one of the largest poultry and agriculture sectors in
the country, and poultry houses have close to an ideal load profile for solar.
Tunnel ventilation fans, lighting and heating draw hard and year-round on rural
three-phase service, with wide clear-span roofs and open land beside them.
We have installed more than 4.8 MW on US poultry operations, including named
systems of 210 kW on a six-house breeder farm, 450 kW on a 14-house broiler farm
and 410 kW on a 16-house broiler farm. The commercial solar installation North
Carolina growers ask us about most often is exactly that: a house-by-house array
sized to the ventilation load. Those are the reference designs to look at — start
with the
[450 kW 14-house broiler farm solar case study](/projects/poultry-450kw-14-house-broiler-solar),
then read
[solar panels for poultry farms](/industries/poultry) for house-by-house sizing
and what the equipment actually costs.
Rural operations are also the strongest candidates for the
[USDA REAP grant for solar](/incentives/usda-reap-grant), which can fund a
significant share of an eligible project. Stack that with
[the 30% federal solar investment tax credit](/incentives/federal-solar-tax-credit)
and [Section 179 and bonus depreciation](/incentives/section-179-solar) and the
capital picture changes materially. USDA and the IRS decide those outcomes, not
us, and your accountant must validate them.
## What about North Carolina manufacturing and distribution?
The state's furniture, textile, food processing, pharmaceutical and
distribution facilities have the three things that make commercial solar work:
large uninterrupted roof or land area, three-phase service already sized for the
plant, and a daytime load that lines up with production. Our largest project of
that type is the 1.267 MW rooftop array and 55,000 lb of battery storage at the
Samsonite and TUMI distribution center — the
[Samsonite and TUMI rooftop solar and battery case
study](/projects/samsonite-tumi-1267kw-rooftop-solar-battery) shows how the array
and the BatteryCube® bank were sized against the plant's demand profile. The same
approach is described under
[solar for manufacturing facilities](/industries/manufacturing).
## How do we start a North Carolina project?
We take on commercial solar installation North Carolina wide, from the coastal
plain to the Piedmont. Send twelve months of bills and the service address. We
identify the operating
company and rate schedule, look at the point of interconnection before we look at
the roof, and tell you whether the site is worth engineering. The full scope sits
on our [commercial solar EPC contractor](/services/commercial-solar-epc) page.
Run a first pass with the
[commercial solar savings calculator](/calculator) or
[ask us for a North Carolina site assessment](/contact).
### Frequently asked questions
**Do I need a licensed electrical contractor and a PE for commercial solar in North Carolina?**
Yes to both, in practice. North Carolina licenses electrical contractors by classification, and commercial photovoltaic work sits comfortably inside the Unlimited Classification. Building departments expect sealed structural and electrical drawings for a commercial array, and utilities want a sealed single-line diagram with the interconnection application. Our VP of Engineering has held the North Carolina Unlimited Classification since 1992 and is a licensed Professional Engineer in the state.
**How does the Duke Energy interconnection process work in North Carolina?**
Applications are reviewed against the state interconnection procedures, with smaller and simpler projects screened faster than larger ones, and anything that fails a screen moves into a study. Duke Energy Carolinas and Duke Energy Progress are separate operating companies with separate territories and queues, so your project timeline depends on which one serves the site. Because the procedures are periodically revised, confirm current requirements before you plan a schedule.
**Does North Carolina have net metering for commercial solar?**
North Carolina's compensation rules for customer-owned solar have been restructured through legislation and North Carolina Utilities Commission proceedings, and the terms available to a nonresidential customer today may differ from those in older articles you find online. We obtain the current tariff for your specific utility before we model savings, and we recommend confirming the terms in writing with the utility rather than relying on secondary sources.
**Can a North Carolina poultry farm use a REAP grant for solar?**
North Carolina poultry operations are strong REAP candidates because they are agricultural producers in rural areas with heavy, year-round electrical loads from ventilation, lighting and heating. USDA awards the grant, so nobody can promise you one. We prepare the technical and energy assessment portions of the application package and coordinate with your accountant and lender on the financial sections.
**Has OneWorld Solar worked in North Carolina?**
Our completed project portfolio is concentrated in Georgia, Florida and the Caribbean. Our engineering leadership, however, is North Carolina licensed and has spent a career on medium- and high-voltage interconnections of utility-scale renewable generators in the Carolinas. We would rather tell you that plainly than dress up a project list. Ask us for references and we will point you at comparable work by system type and utility relationship.
**What size commercial solar systems are worth doing in North Carolina?**
The engineering effort for a commercial array does not shrink much below about 100 kW, so small systems carry proportionally higher soft costs. Poultry farms, food processing plants, distribution centers and manufacturing sites with three-phase service and strong daytime load are where the numbers usually work. We will tell you if your site is too small or too shaded rather than sell you an array that will disappoint you.
---
## Commercial Solar Installation Caribbean: Island Grids and Storms
Source: https://www.owsolar.com/commercial-solar-installation-caribbean
Topic: commercial solar installation Caribbean
Last updated: 2026-07-29
Island power is expensive, the grid is small and fossil-fueled, and the weather is the design case. That changes the economics of commercial solar in the Caribbean, and it changes what you have to build.
A **commercial solar installation Caribbean** owners actually benefit from is a
different engineering problem from the same array in Georgia. The grid is small,
largely fossil-fueled and expensive to run. The weather has a design case with a
name. And every component has to arrive on a boat before anyone can install it.
Those three facts change the sizing, the specification and the schedule.
OneWorld Solar has built at scale in the region: 800 kW at the Westin Dawn Beach
Resort & Spa in St. Maarten, a 451.5 kW ground mount for the Virgin Islands Port
Authority in St. Thomas, and 157 kW at the Divi Little Bay Beach Resort in
Phillipsburg. We were founded in 2001, are based in Vidalia, Georgia, and have
installed more than 7.8 MW for commercial customers overall.
{/* TODO PHOTO: drone shot of the Westin Dawn Beach Resort & Spa roof array, St. Maarten,
mid-morning so the panels are not blown out and the coastline is visible.
Landscape, minimum 2000px wide. Request from Doug. */}
## Why do the economics work differently on an island?
Because generation is the expensive part. Utilities such as GEBE in Sint Maarten
and the Virgin Islands Water and Power Authority run comparatively small systems
that depend on imported fuel, and fuel cost is generally passed through to
customers. The result is that commercial electricity rates in the
region sit well above what a mainland US business pays — we are
deliberately not printing a number here, because it moves with fuel and with
tariff decisions, and yours is on your own bill.
That inverts the usual conversation. On the mainland we spend our time squeezing
a payback down toward something a CFO will sign. Here, the avoided cost per
kilowatt-hour is high enough that the harder questions are structural: how much
of your load can the roof actually carry, what does the utility allow you to
export, and what happens when the grid goes down. Treat any
utility export, non-export or ramp-rate requirement as
something to confirm with the utility in writing at the start of design.
## How does hurricane design change the build?
Every commercial solar installation Caribbean owners commission has to answer for
the worst day, not the average one. Wind is the governing load case, not a
check performed at the end. The 2017 season — Irma
followed by Maria — is the reference point everyone in the region works from, and
it taught the same lesson repeatedly: modules rarely fail first. Attachments,
clamps, ballast assumptions and corroded fasteners fail first, and then the
modules leave.
So the array is engineered from the uplift outward. Attachment density increases
at roof corners and edges where pressures are highest, penetrations are detailed
to the roof manufacturer's warranty requirements, and fastener metallurgy is
chosen for salt exposure rather than for price. Salt air is not a coastal footnote
here; it is the whole site. Dissimilar metals are isolated, enclosures and
conduit fittings are specified for the environment, and torque checks are part of
the maintenance plan rather than an afterthought. Our own patented racking,
awarded in 2020 with a second patent in 2025, exists because racking is where
these loads are resolved.
Ask any Caribbean solar contractor what happens the day after a storm: who
inspects the array, who re-torques it, where the spare modules and inverter are
stored, and how long a replacement takes to clear customs. If those answers do
not exist before construction, they will not exist when you need them.
## Why do storage and micro-grids matter more here?
Because an outage on an island is not a fifteen-minute inconvenience. For a
resort it is failed refrigeration, dead water pressure on upper floors, dark
corridors and guests checking out. Solar alone stops producing when the grid
drops unless the system is designed to carry load without it.
That is why most of our regional work involves
[commercial battery storage](/services/battery-storage) and, where the site
justifies it, [an islandable micro-grid](/services/micro-grids) that keeps
critical loads running when utility supply is gone. Our BatteryCube® cabinets are
the same platform we used to pair 55,000 lb of storage with a 1.267 MW rooftop
array in Georgia. Storage also helps a project meet
utility interconnection conditions on small island grids,
where a large variable generator can raise legitimate stability concerns.
## What about logistics, labor and spares?
This is where Caribbean projects usually slip, and it is entirely preventable.
Equipment is consolidated and containerized so a shipment is not split across
sailings. Import and customs documentation is prepared before the container
leaves, because a container sitting at the port is a crew standing still. We work
with local crews and licensed local trades where the jurisdiction requires it,
which is both a legal matter and a practical one — local knowledge of the
building stock is worth having. And spares are bought with the original order.
An inverter you can replace in three days is a different asset from one you wait
six weeks for.
## Which properties is this right for?
Resorts and hotels first — most commercial solar installation Caribbean work we
take on is hospitality, which is why our regional experience feeds directly into
[solar for hotels and resorts](/industries/hospitality). Then ports,
airports, utilities, hospitals, water plants and government facilities — anything
with a large daytime load and a reason to keep operating without the grid. The
[Westin Dawn Beach Resort 800 kW solar case
study](/projects/westin-dawn-beach-resort-800kw-solar) is the closest analogue
for most hospitality owners, and the
[Virgin Islands Port Authority 451.5 kW ground mount](/projects/virgin-islands-port-authority-451kw-solar)
is the reference for public infrastructure.
US Virgin Islands projects sit under US jurisdiction, so
[the 30% federal solar investment tax credit](/incentives/federal-solar-tax-credit)
and [Section 179 and bonus depreciation](/incentives/section-179-solar) may be
relevant — your tax advisor must confirm eligibility for your entity before any
of it goes into a model. Sint Maarten projects stand on avoided energy cost and
resilience instead.
The delivery model is the same one described on our
[commercial solar EPC contractor](/services/commercial-solar-epc) page, adapted
for shipping and island permitting.
[Tell us about your property](/contact) and send twelve months of bills.
### Frequently asked questions
**Do US federal solar tax credits apply in the US Virgin Islands?**
The US Virgin Islands is a US territory, so US federal incentive programs can be relevant to a project there in a way they are not for an independent jurisdiction. Territorial tax treatment is genuinely complex and depends on your entity structure and where income is sourced. Have your tax advisor confirm eligibility in writing before any incentive is counted in a payback model. We will not represent that a credit will be received.
**Are Sint Maarten projects eligible for US incentives?**
No. Sint Maarten is a constituent country within the Kingdom of the Netherlands, not a US jurisdiction, so US federal solar incentives are not the framework there. Projects are evaluated on avoided electricity cost, on any local duty or import treatment, and on the value of keeping the property running through an outage. Confirm the current local rules with an advisor licensed in the jurisdiction before you build a financial model.
**How do you design a Caribbean solar array to survive a hurricane?**
By making wind the governing load case rather than a check performed at the end. Attachment and racking are engineered for the design uplift at the specific site and roof zone, hardware is specified for salt exposure, and module clamping is detailed so that no single fastener failure unzips a row. We also plan for inspection and re-torque after a storm, because the array you never look at is the one that fails next time.
**Why does battery storage matter more in the Caribbean?**
Because island grids are small and outages are common, so stored energy buys you operation rather than just savings. A hotel that can keep water pumps, refrigeration, elevators and key rooms alive through an outage protects revenue and guest safety. Small grids are also sensitive to variable generation, so utilities may impose export or ramp conditions that storage helps a project meet. Verify those requirements with the utility early.
**How do you handle shipping, customs and local labor?**
We plan them into the schedule instead of discovering them. Equipment is containerized and consolidated so that a project is not held up waiting on one pallet, import documentation is prepared before the container sails, and we work with local crews and licensed local trades where the jurisdiction requires it. Spares are ordered with the original equipment, because a replacement inverter that takes weeks to clear customs is an outage, not an inconvenience.
**What size commercial solar projects have you built in the Caribbean?**
Our largest is an 800 kW array at the Westin Dawn Beach Resort & Spa in St. Maarten. We also built a 451.5 kW ground mount for the Virgin Islands Port Authority in St. Thomas and a 157 kW roof mount at the Divi Little Bay Beach Resort in Phillipsburg. Company-wide we have installed more than 7.8 MW of commercial solar and battery capacity since 2017.
---
# Incentives
## USDA REAP Grant Solar Funding for Farms and Rural Businesses
Source: https://www.owsolar.com/incentives/usda-reap-grant
Topic: USDA REAP grant solar
Last updated: 2026-09-08
The Rural Energy for America Program offers grants and guaranteed loans toward renewable energy systems for agricultural producers and rural small businesses. It is competitive, scored and awarded before you build.
For a farm or a rural small business, **USDA REAP grant solar** funding is often
the difference between a project that pencils and one that stays in a drawer. It
is a federal cost-share program run by the U.S. Department of Agriculture to put
renewable energy and efficiency equipment on agricultural operations and small
businesses outside the metro areas.
It is also widely misunderstood. A REAP grant is not a rebate you claim after the
fact, it is not automatic, and no solar contractor can promise you one. It is a
competitive application scored inside a funding round, and the award comes before
you build, not after.
OneWorld Solar has installed more than 4.8 MW on U.S. poultry operations and works
alongside REAP applicants regularly, but the grant itself is yours to procure and
validate.
Every figure on this page — percentages, caps, deadlines, thresholds — changes.
REAP is funded on a cycle, application windows open and close each year, and the
caps and match requirements come from the rules in force for the round you apply
to, not from this page. This is a general explanation of how the program works,
not tax, legal or grant advice. Confirm current terms with your USDA Rural
Development state energy coordinator, and anything with a tax consequence with a
Certified Tax Accountant, before you budget.
## What is the Rural Energy for America Program?
Applications go to USDA Rural Development state offices rather than one national
desk, so your state energy coordinator is the person who will read your file. Call
them early.
The program funds renewable energy systems — solar, wind, geothermal, digesters —
and efficiency improvements such as lighting, ventilation and motors. An array on
a poultry house, a packing shed or a rural manufacturing building sits in the
first category.
Money arrives in two forms, which can sometimes be combined:
- **Grants** cover a share of eligible project costs, capped both as a percentage
and by a maximum award — up to 50% of eligible project cost,
with a maximum renewable energy system grant of $1 million
and a minimum request of $2,500.
- **Guaranteed loans**, where USDA guarantees part of a loan your own lender
makes, up to $25 million. That improves your terms; it is
not free money.
- **Combined** grant and loan requests, with their own ceiling of
75% of eligible project cost.
Whatever the grant does not cover, you cover. Matching funds must be documented
and genuinely available — at least 50% of project cost from non-federal
sources on a grant-only application — and USDA wants evidence of them.
## Who is eligible for a REAP grant?
Two groups. **Agricultural producers**, who generally must derive a substantial
share of gross income from agricultural operations — at least
50% — and who can qualify whether or not the operation sits in a rural
area. And **small businesses**, which must meet the size standard for their
industry and must be at an address USDA classifies as rural.
That word "rural" catches most people out. USDA uses a specific definition tied to
population and to mapped eligibility boundaries — generally areas
outside cities and towns of more than 50,000 residents and their adjacent
urbanized areas. A site that feels rural can fall inside a mapped
boundary and be ineligible, and the reverse happens just as often. Check the
address on USDA's map first.
Applicants must also be current on federal debt, not debarred, and registered in
SAM, the federal System for Award Management, with an active UEI number. SAM
registration takes longer than people expect.
## Is a REAP grant automatic?
No, and this is the most important thing on the page. USDA REAP grant solar awards
are competitive and scored: applications compete inside a funding round, and USDA
awards against a published rubric.
Points go to the energy the system replaces, the size of the applicant, the share
you fund yourself, and whether you have had REAP support before.
Paperwork quality therefore matters as much as system quality. A thin assessment
and a one-page quote will score below a full technical report, for the same array.
## What does a REAP application require?
- **An energy assessment or a full energy audit.** Projects above
$200,000 in total project cost generally need a full audit
by a qualified professional.
- **A technical report** covering design, equipment, production estimate,
installer qualifications, permits, interconnection and the O&M plan.
- **Financial statements** — typically three years of history
plus projections, showing the business can carry the project.
- **Evidence of matching funds**: a bank statement or a loan commitment letter.
- **Environmental review** under NEPA, plus any historic preservation, floodplain
or endangered species screening your site triggers.
- **Active SAM registration and a UEI number** before submission.
- **Site control** — deed, lease or easement proving you can build where you say.
The order to tackle it in is covered step by step in our
[REAP grant application guide for solar](/insights/usda-reap-grant-application-guide).
## How long does REAP take, and when can I build?
Think in quarters. USDA publishes application deadlines —
recent years have run multiple windows per fiscal year — and
awards follow 60 to 120 days after a window closes. From
first conversation to funds in hand, six to twelve months is
a fair planning assumption.
Federal grant programs generally require that the funded work has not begun before
the award is made. Breaking ground, and in some cases ordering major equipment,
can render those costs ineligible or disqualify the application outright. If the
roof needs replacing first, or lead times are long, agree the sequencing with your
USDA state coordinator in writing before anything happens on site — and confirm
the current rule with USDA, not with this page.
## Why REAP fits poultry and agriculture
Poultry houses are close to an ideal candidate: heavy ventilation and lighting
loads year-round, demand peaking in the months a Southeast array produces most,
and an operation that almost always satisfies the agricultural-producer test.
The same load profile raises a second question that solar alone does not answer.
Ventilation failure in a full house is a mortality event measured in minutes, not
hours, which is why growers who start with a grant application often end up
asking about [commercial battery storage](/services/battery-storage) and about a
[microgrid that can island the ventilation load](/services/micro-grids) when the
grid drops. Whether any of that is eligible for REAP funding depends on how the
project is scoped, and is a question for your USDA state coordinator rather than
for us.
Our poultry work includes a 210 kW system on a 6-house breeder farm, 450 kW on a
14-house broiler farm and 410 kW on a 16-house broiler farm, part of more than
4.8 MW installed on U.S. poultry operations. There is more on
[solar panels for poultry farms](/industries/poultry) and on
[commercial solar installation in Georgia](/commercial-solar-installation-georgia),
where most of it was built. REAP is federal, so the same rules apply across our
territory — see
[commercial solar installation in North Carolina](/commercial-solar-installation-north-carolina)
and [in South Carolina](/commercial-solar-installation-south-carolina) for how
the interconnection and utility picture differs there.
REAP is also frequently considered alongside the
[30% federal solar investment tax credit](/incentives/federal-solar-tax-credit)
and [Section 179 and bonus depreciation for solar](/incentives/section-179-solar).
How a federal grant affects your depreciable basis and your credit basis belongs
to a Certified Tax Accountant, not to us.
## What we do, and what you do
We are a [commercial solar EPC contractor](/services/commercial-solar-epc), not a
grant writer and not a tax adviser. We supply the engineering half of the file:
system design, production modeling, an itemized cost breakdown, equipment
specifications, interconnection detail and installer credentials. Our VP of Engineering is a Professional Engineer licensed in six states and a
NABCEP board-certified Photovoltaic System Inspector, and the technical report
carries his seal.
You, usually with a grant writer and your accountant, submit the application and
procure and validate the grant. That division is written into our contract. To
test whether your site is a candidate for USDA REAP grant solar funding,
[talk to us about a REAP-backed solar project](/contact) and send twelve months of
bills.
### Frequently asked questions
**Who is eligible for a USDA REAP grant for solar?**
Two groups qualify: agricultural producers and small businesses located in eligible rural areas. An agricultural producer generally has to derive a substantial share of gross income from agriculture, and can qualify whether or not the farm sits in a rural area. A small business has to meet the size standard for its industry and be at an address USDA maps as rural. Check the address on USDA's eligibility map first, because the definition is narrower than most people expect.
**How much of a solar project can a REAP grant cover?**
A REAP grant covers a share of eligible project costs, subject to both a percentage cap and a maximum dollar amount, and you fund the balance from non-federal sources. Both caps are set by the rules in force for the funding round you apply to, and they have changed more than once. Confirm the current percentage, the maximum award and the matching-funds requirement with your USDA Rural Development state energy coordinator before you build them into a budget.
**Can I start building solar before my REAP grant is approved?**
Generally no, and this is the mistake that costs applicants the most. Federal grant programs typically require that the funded work has not begun before the award is made, and breaking ground or ordering major equipment early can make those costs ineligible or disqualify the application. If your roof needs work first, or equipment lead times are long, get the sequencing agreed in writing with your USDA state coordinator before anything happens on site.
**How long does a REAP grant take from application to award?**
Plan in quarters rather than weeks. USDA publishes application windows, awards are announced some months after a window closes, and construction follows the award. Six to twelve months from your first conversation to money in hand is a realistic planning assumption for most projects. The parts you control are how early you start the energy assessment, the SAM registration and the financial statements, all of which routinely delay applications.
**Can I use a REAP grant and the federal solar tax credit on the same project?**
Businesses do commonly pursue both, but how a federal grant affects your depreciable basis and the basis on which an investment tax credit is calculated is a genuine tax question with real money attached. It is not something a solar contractor can answer for you. Ask a Certified Tax Accountant to model the combination for your entity before you commit, because the answer changes the net cost of the project.
**Does OneWorld Solar write the REAP application for me?**
No. We supply the engineering half of the file: system design, production modeling, an itemized cost breakdown, equipment specifications, interconnection detail, installer credentials and the commissioning evidence an award later requires. Most applicants pair that with a grant writer and their accountant. The grant itself remains the customer's responsibility to procure and validate, which is stated plainly in our contract and in our financial disclaimer.
---
## Commercial Solar Tax Credit: 30% Federal ITC for Businesses
Source: https://www.owsolar.com/incentives/federal-solar-tax-credit
Topic: commercial solar tax credit 30%
Last updated: 2026-09-04
The federal investment tax credit reduces tax owed rather than income taxed, which makes it far more valuable than a deduction — and worthless to an entity with no liability. Here is how the structure works.
The commercial solar tax credit, 30% in recent federal law, is the largest single
lever on the cost of a commercial array — and the one most often described
carelessly. It is a **federal investment tax credit**, which means it reduces the
tax your business owes rather than the income your business is taxed on. That
distinction is worth more than it sounds.
A deduction of $100,000 saves you your marginal rate multiplied by $100,000. A
credit of $100,000 saves you $100,000, dollar for dollar, against tax owed. Which
is precisely why the qualifier in the next section matters so much and gets left
out of almost every solar sales pitch.
This page explains the structure of the credit. It does not tell you what your
business can claim — that depends on your entity, your liability, your
placed-in-service year and the version of the law governing your project.
Federal energy tax law has been amended repeatedly, and rates, adders,
thresholds, wage rules and deadlines have all moved. Every percentage, dollar
figure and date on this page is marked for verification for that reason. This is
a general explanation of how an investment tax credit is structured. It is not tax
advice, and OneWorld Solar does not give tax advice. You are responsible for
verifying all tax information with a Certified Tax Accountant before you rely on
any of it.
## Do I need tax liability to use the credit?
Yes, and this is the qualifier to settle before anything else. The commercial
solar tax credit, 30% or any other rate, is applied against tax you owe. If your
entity owes no federal tax in the year the system is placed in service, there is
nothing for the credit to offset in that year.
That catches more businesses than you would think: entities carrying forward
losses, pass-throughs whose owners have limited passive income, non-profits, and
businesses having a poor year in exactly the year they finally build. Federal law
has historically allowed unused credit to be carried back
three years and carried forward up to
22 years, and recent law has introduced transferability and
elective payment mechanisms that let some taxpayers monetize a credit they cannot
personally use. Whether any of that is available to you, and what it is worth
after discount, is a Certified Tax Accountant's answer, not ours.
## How is the 30% rate actually structured?
Recent federal energy credits have not used a single flat percentage. The
commercial solar tax credit, 30% at the top of its range, comes out of a two-tier
structure: a low **base rate** of 6% of eligible basis,
multiplied by five to 30% when the
project satisfies **prevailing wage and apprenticeship requirements** during
construction and, for a defined period, during alteration and repair.
Smaller projects have generally been exempt from those labor requirements and
have qualified for the full rate automatically, with the exemption drawn at
1 MW AC of nameplate capacity. Most of what we build sits
below that line, which simplifies the question considerably — but it does not
remove it, and the threshold is measured in a specific way you should confirm.
Where the labor rules do apply, they are a documentation obligation on the
construction contract: certified payroll, apprenticeship hours and ratios, and
records kept for the statutory period. That has to be agreed before construction
starts, not reconstructed afterwards, which is one reason to settle it during
[commercial solar EPC](/services/commercial-solar-epc) contracting.
## What adders might apply to my project?
Federal law has attached bonus percentages on top of the base credit for certain
projects. The ones that have mattered most for commercial buyers:
- **Domestic content** — an additional 10 percentage points
where a required share of steel, iron and manufactured products is produced in
the United States. The required share has been set on a schedule that rises over
time, and the calculation is genuinely technical.
- **Energy community** — an additional 10 percentage
points for projects located in areas defined by coal closures,
fossil-fuel employment history or brownfield status. Eligibility is by mapped
location, and the maps are revised.
- **Low-income or qualifying location allocations** — an additional
10 or 20 percentage points under a capacity-limited,
application-based program rather than an automatic entitlement.
We can tell you what equipment goes on your roof and where the site is. We cannot
tell you which adders your project qualifies for, and you should be skeptical of
anyone in solar who says they can. Ask your accountant to confirm each against
current guidance.
## Does battery storage qualify?
Standalone energy storage has been treated as eligible property under recent
federal law, which was a substantive change from the earlier position where
storage only qualified if it was charged by an on-site renewable system. A minimum
capacity threshold of 5 kWh has applied, and charging
conditions have varied between versions of the rules.
That matters because storage is often where the operating savings are, not the
solar. Our [commercial battery storage installation](/services/battery-storage)
work targets demand charges and peak shaving, and the
[BatteryCube® battery energy storage system](/batterycube) is our own cabinet
product, built around CATL cells — 55,000 lb of it sits alongside the 1.267 MW
rooftop array at the Samsonite and TUMI facility in Vidalia, Georgia. Whether your
storage configuration is eligible in your placed-in-service year is, again, a
question for your tax adviser.
## How does the credit interact with depreciation?
Claiming the credit has historically required reducing the depreciable basis of
the property by 50% of the credit claimed. You do not get to
depreciate the entire installed cost and take the full credit on top of it.
This is where the real arithmetic of a commercial project lives, because the
credit, [Section 179 and bonus depreciation for solar](/incentives/section-179-solar)
interact with each other and with your taxable income in an order that changes the
outcome. We walk through how the pieces fit in
[stacking the solar tax credit with Section 179](/insights/stacking-solar-tax-credit-section-179),
and for rural and agricultural sites there is a third piece in the
[USDA REAP grant for solar](/incentives/usda-reap-grant), where a federal grant
has its own effect on basis.
Sequence and eligibility are your accountant's decisions. Ours is to make sure the
underlying records support whatever they decide.
## What are the deadlines after the One Big Beautiful Bill Act?
The law signed on July 4, 2025 did not lower the 30% rate for a business. It put
a calendar on it, and the calendar now decides more than the rate does. As
summarized by the AICPA's Tax Adviser and confirmed in IRS Notice 2025-42:
- **Construction beginning after July 4, 2026:** the solar facility must be placed
in service by December 31, 2027 to qualify. Miss that date
and the credit is lost for that facility.
- **Construction begun before July 5, 2026:** the older continuity safe harbor
applies, generally placed in service within
four calendar years after the year construction began.
- **How "beginning of construction" is proved:** for larger solar and wind
facilities only the physical work test now counts, but a solar facility with a
maximum net output of 1.5 MW or less can still use the 5%
safe harbor, meaning paying or incurring 5% of the total cost and then making
continuous efforts to complete it. Almost every system we build is under that
line.
- **Energy storage** is on its own, longer schedule: the section 48E credit for
storage phases down only for construction beginning in
2034 and later.
- **Prohibited foreign entities:** for construction beginning after
December 31, 2025, material assistance from a prohibited
foreign entity can disqualify the facility, so equipment sourcing is
documented from the first purchase order.
We reported these rules in more detail when they became the deciding factor
for projects starting this year, in
[the commercial solar tax credit deadline for 2027](/news/commercial-solar-tax-credit-deadline-obbba-rules).
The practical consequence is that a project beginning this fall has to be
designed, interconnected and commissioned inside a fixed window, which is why
the schedule is part of our proposal rather than an afterthought. As with every
other figure on this page, the dates are the current federal rules as we
understand them and must be confirmed by a Certified Tax Accountant for your
project.
## What OneWorld Solar provides for the claim
We supply evidence, and we are careful not to supply opinions:
- **An itemized cost breakdown** that separates eligible equipment and labor from
scope that is unlikely to qualify, such as unrelated roof replacement, site work
or building improvements bundled into the same contract.
- **Equipment specifications and supplier documentation**, including the
manufacturer statements a domestic content analysis starts from.
- **Commissioning records** — performance testing, as-builts and O&M
documentation.
- **Placed-in-service evidence**, dated: final inspection, the utility witness
test and energization, which fixes the credit to a tax year.
- **Construction-start records**, where the vintage of the law applied to your
project turns on them.
If you want to see how the credit and depreciation move a payback range before you
talk to anyone, the [commercial solar savings calculator](/calculator) will give
you a system size, an annual saving and a payback band from your monthly bill. Its
output is an estimate, and the estimate assumes tax benefits that only a Certified
Tax Accountant can confirm you are able to use.
### Frequently asked questions
**Can I claim the solar tax credit if my business had no taxable income?**
Not in that year, no. A credit offsets tax you owe, so an entity with no liability has nothing to offset. Federal rules have historically allowed unused credit to be carried back to prior years and forward to future ones, and recent law has added transfer and elective payment routes for some taxpayers. Whether any of those apply to your entity, and in which year, is a question for a Certified Tax Accountant.
**Is the commercial solar tax credit really 30%?**
Thirty percent has been the headline figure in recent federal law, but it is the result of a structure rather than a flat rate. Federal energy credits have used a low base rate that multiplies up when a project satisfies prevailing wage and apprenticeship requirements, with smaller projects often exempt from those requirements. Rates and thresholds have been amended repeatedly, so confirm the number that applies to your project and your placed-in-service year with your tax adviser.
**Does battery storage qualify for the federal investment tax credit?**
Standalone energy storage has been treated as eligible property under recent federal law, which was a change from earlier rules that only allowed storage charged by an on-site solar array. Minimum capacity thresholds and charging conditions have applied at different times. If storage is a material part of your project economics, have your accountant confirm eligibility for your specific configuration before you sign.
**How does the solar tax credit affect depreciation?**
Claiming an investment tax credit has historically required reducing the depreciable basis of the property by a portion of the credit, so you cannot depreciate the full installed cost and take the full credit on top. That interaction is exactly where the combined value of a project is won or lost. It is an accountant's calculation, not a solar contractor's, and it should be modeled before you commit.
**When does a solar project have to be finished to claim the credit?**
Under the One Big Beautiful Bill Act, a solar facility that begins construction after July 4, 2026 must be placed in service, meaning ready and available for its intended use, by December 31, 2027. A facility that began construction before July 5, 2026 keeps the older continuity rule of up to four calendar years after the year construction began. Because interconnection queues can push energization across a year boundary, confirm the date that governs your project early.
**What does OneWorld Solar provide for the tax credit claim?**
We provide the evidence, not the advice. That means an itemized cost breakdown separating eligible equipment and labor from non-eligible scope, equipment specifications and supplier documentation, commissioning test results, and dated placed-in-service records including the utility witness test. Your Certified Tax Accountant uses that package to decide what is claimable and to file it.
---
## Section 179 Solar Depreciation, Bonus Depreciation and MACRS
Source: https://www.owsolar.com/incentives/section-179-solar
Topic: Section 179 solar depreciation
Last updated: 2026-07-29
Section 179 expensing, bonus depreciation and MACRS are three separate mechanisms that most business owners treat as one. The difference between them decides how much of a solar array you write off, and when.
**Section 179 solar depreciation** is the phrase most business owners use, but it
usually covers three separate tax rules that behave very differently: Section 179
expensing, bonus depreciation, and MACRS recovery. Conflating them is the single
most common error we see in commercial solar proposals, including proposals
written by other contractors.
Depreciation is not a rebate and not a credit. It is the recovery of an asset's
cost against income over time, and its value to you is the deduction multiplied by
your marginal rate. What Section 179 and bonus depreciation change is not how much
you recover, but how fast. On a project of a few hundred thousand dollars,
accelerating the write-off can be worth a meaningful share of the installed cost
in year one.
This page separates the three mechanisms so you can hold a useful conversation
with your accountant. It is not that conversation.
Federal depreciation rules change, and they have changed several times in recent
years. Section 179 limits are indexed annually, bonus depreciation has been on a
legislated phase-down that has itself been amended, and state tax codes do not all
conform to the federal treatment. Every figure here is marked for verification for
that reason. This page is a general explanation, not tax advice. You are
responsible for verifying all tax information with a Certified Tax Accountant.
## What is the difference between Section 179, bonus depreciation and MACRS?
**MACRS** is the default. It assigns an asset to a recovery class and spreads the
deduction across that period on a fixed schedule. Solar energy property has
historically been assigned a five-year class life, which is
short for equipment expected to run for decades — that acceleration is deliberate
policy, not an accounting quirk. Applied with the half-year
convention, five-year property actually recovers across six tax years,
and a mid-quarter convention can apply instead if too much of
your year's asset purchases land in the final quarter.
**Section 179** is an election to expense qualifying property immediately instead
of recovering it over the class life. Two constraints define it:
- An **annual dollar limit** on the total you can expense —
$1,220,000 — which phases down dollar for dollar once your
total qualifying purchases for the year exceed a threshold of
$3,050,000. Both are indexed and both change.
- A **taxable income limitation**. The deduction cannot exceed your aggregate
taxable income from the active conduct of your trades or businesses. Section 179
cannot create a loss. Any disallowed amount generally carries forward.
**Bonus depreciation** applies a percentage of the asset's cost in the first year
with no dollar cap and no income limitation. It can create or deepen a loss. The
percentage has been on a legislated schedule —
100%, stepping down to 80%, 60%, 40% and 20% in successive
years — and that schedule has been amended more than once, so the rate
that applies to you depends on your placed-in-service year under the law as it
then stands.
The short version: Section 179 is capped but selective, bonus depreciation is
uncapped but blunt, and MACRS catches whatever is left.
## How does the tax credit change the depreciation math?
You cannot treat the two independently. Claiming the
[30% federal solar investment tax credit](/incentives/federal-solar-tax-credit)
has historically required reducing the depreciable basis of the property by
50% of the credit claimed. The depreciation rules above then
apply to the reduced basis, not to the full installed cost.
For rural and agricultural sites there is a third input. A
[USDA REAP grant for solar](/incentives/usda-reap-grant) is federal money into the
same asset, and it has its own effect on the basis you are entitled to depreciate
and on the basis the credit is computed against. Get that modeled before you sign
anything, not after.
## An illustrative example
The figures below are illustrative only. They are not a quote, not a projection
for your business, and not a representation that any of these amounts apply to
you. Every number is marked for verification.
Take a commercial array with an installed cost of
$500,000.
1. **Investment tax credit.** At an assumed 30% rate, the
credit is $150,000 against tax owed — assuming the entity
has liability to offset.
2. **Basis reduction.** Reducing basis by 50% of the credit
removes $75,000, leaving a depreciable basis of
$425,000.
3. **Accelerated deduction.** Applying bonus depreciation at an assumed
60% gives a first-year deduction of
$255,000, with the remaining
$170,000 recovered over the MACRS schedule.
4. **Value of the deduction.** At an assumed marginal rate of
21%, that first-year deduction is worth roughly
$53,550 in reduced tax — not $255,000. A deduction is
worth your rate; a credit is worth its face value.
Change any assumption — the rate, the entity type, whether Section 179 is elected
first, whether your state conforms, whether a grant is involved — and the answer
moves. That sensitivity is the point of the example.
## Why does the order of these choices matter?
Because the elections interact, and each one changes the base the next one works
from. The running order is Section 179 solar depreciation first, bonus
depreciation next, regular MACRS recovery last, and all of it after the credit's
basis reduction. Elect Section 179 on the wrong assets and you may waste a capped
allowance on property that bonus depreciation would have covered anyway. Take a
large deduction in a low-rate year and you convert a valuable deduction into a
cheap one. Create a loss you did not intend and you may affect other planning
entirely.
None of that is a solar contractor's call. It requires knowing your entity
structure, your income across years, your state's conformity, your other capital
spending and your owners' positions. We do not have that information and we do not
want the liability of guessing at it. The mechanics of combining the credit with
accelerated depreciation are laid out in
[stacking the solar tax credit with Section 179](/insights/stacking-solar-tax-credit-section-179),
and everything in it is still subject to your accountant's judgment.
## Which businesses does this matter most to?
Section 179 solar depreciation matters most to profitable, tax-paying operations
with substantial roof or ground area and a strong appetite for first-year
deductions. In our own portfolio that describes two groups particularly well.
[Car dealerships](/industries/automotive) carry large service and showroom loads,
large flat roofs, and an ownership structure that is typically tax-paying — we
have built more than 1 MW across the Woody Folsom Chevrolet, Ford and Chrysler
Dodge stores in Georgia. [Manufacturing and warehousing facilities](/industries/manufacturing)
combine heavy demand charges with large roof areas; the 1.267 MW array and
BatteryCube® storage at the Samsonite and TUMI distribution center in Vidalia is
the clearest example we have.
To see how an accelerated write-off changes a payback range on your own numbers,
the [commercial solar savings calculator](/calculator) will produce a system size
and a payback band from your monthly bill, and if you would rather talk it through
with the engineering detail attached,
[ask us for a commercial solar proposal](/contact) and send twelve months of
utility bills. Whatever comes back, take it to a Certified Tax Accountant before
you rely on the tax portion of it.
### Frequently asked questions
**What is the difference between Section 179 and bonus depreciation for solar?**
Section 179 lets you elect to expense qualifying property up to an annual dollar limit, and the deduction cannot exceed your taxable income from active business, so it cannot create a loss. Bonus depreciation applies a fixed percentage to the asset's cost with no dollar cap and no income limitation, and it can create or increase a loss. They are separate elections, and most businesses can use both in a defined order.
**Can I use Section 179 on solar if my business had a loss this year?**
Section 179 is limited by taxable income from the active conduct of your trades or businesses, so a loss year generally blocks the deduction for that year. The disallowed amount can typically be carried forward to a future year with income. Bonus depreciation carries no such limitation, which is one of the main reasons a business in a loss position may prefer it. Have a Certified Tax Accountant model both.
**How many years do you depreciate a commercial solar system over?**
Solar energy property has historically been assigned a five-year class life under MACRS, which is short for equipment with a service life measured in decades, and that acceleration is deliberate policy. Applied with the half-year convention, the recovery actually spreads across six tax years. Whether your specific installation falls in that class, and which convention applies, should be confirmed with your accountant.
**Does the solar tax credit reduce what I can depreciate?**
Yes. Claiming the federal investment tax credit has historically required reducing the depreciable basis of the property by a portion of the credit, so you cannot both claim the full credit and depreciate the full installed cost. The reduction is applied before you decide between Section 179, bonus depreciation or standard MACRS recovery, which is why the sequence matters to the final number.
**Which is better for a solar project, Section 179 or bonus depreciation?**
There is no general answer, only an answer for your entity in a specific year. It depends on your taxable income, your state's conformity with federal rules, whether you want to create a loss, how much other equipment you placed in service, and what your income is likely to look like next year. This is genuinely an accountant's decision, and a solar contractor who tells you otherwise is guessing.
**Do I have to take depreciation and the tax credit in the same year?**
The credit generally attaches to the year the property is placed in service, and depreciation begins in that year too, but the elections available to you and the carryforward rules differ between the two. Because interconnection and energization can slip across a year boundary, the placed-in-service date is worth tracking deliberately. Confirm the timing with your Certified Tax Accountant before committing to a build schedule.
---
# Case studies
## Samsonite & TUMI: 1.267 MW Rooftop Solar and 55,000 lb of Battery Storage
Source: https://www.owsolar.com/projects/samsonite-tumi-1267kw-rooftop-solar-battery
Topic: 1 MW solar installation
Last updated: 2026-07-30
The largest single installation OneWorld Solar has built: 1.267 MW of rooftop solar over a working distribution center, paired with 55,000 lb of BatteryCube® storage using CATL cells.
The **1 MW solar installation** at the Samsonite and TUMI distribution center in
Vidalia, Georgia is the largest single system OneWorld Solar has built: 1.267 MW
of rooftop photovoltaics across the facility's roof, paired with 55,000 lb of
battery storage in BatteryCube® cabinets using CATL cells.
It is also the clearest example of why we treat solar and storage as one design
problem rather than two products. The array works on the energy side of the
utility bill. The battery works on the demand side. Sizing either one without
looking at the other leaves money on the table.
## The problem
A distribution center of this size runs a large, steady daytime load — lighting,
conditioning, dock equipment, conveyors and compressed air — with a demand
profile that the utility bills separately from consumption. Two things followed
from that:
- The roof was a very large asset doing nothing. Distribution centers have the
one thing megawatt-scale rooftop solar needs and almost no other commercial
building has: acres of uninterrupted, structurally sound roof in a single
plane.
- Reducing kilowatt-hours alone would not fix the bill. As our own
[financial projections disclaimer](/disclaimer) puts it plainly, a utility may
set a customer's peak demand at a time when solar is not effective — early
morning, late afternoon, or during a run of cloudy days. Solar cuts overall
usage; it cannot be expected on its own to mitigate peak demand.
## The solution
OneWorld Solar delivered the project as a single
[commercial solar EPC contract](/services/commercial-solar-epc): structural and
electrical engineering, stamped drawings, the utility interconnection package,
procurement, construction, and commissioning.
### Rooftop array
The array was laid out to work around the realities of an operating roof —
existing rooftop mechanical units, drainage, fire access pathways and the
building's structural capacity. The concept rendering issued before construction
shows the planned layout; the finished aerial photograph shows how closely it was
followed.
### BatteryCube storage
The storage sits outdoors on a concrete pad alongside the existing utility
transformers, in [BatteryCube®](/batterycube) cabinets built around CATL cells.
Putting the cabinets outside on the load side of the service keeps the battery
out of the building's fire-rated envelope and keeps the interconnection short,
which matters more on a large system than most people expect: every foot of
heavy AC conductor between the storage and the point of interconnection is cost
and loss.
It is tempting to treat storage as extra solar. It is not. A battery sized to
shave a demand peak is usually far smaller than a battery sized to carry a
facility through a night, and the two have completely different cost cases. We
size storage from the customer's actual interval data, not from the array size.
Read more in
[when commercial battery storage pays off](/insights/commercial-battery-storage-payback).
## The results
{/* INTERNAL — not rendered. Verified production and bill-savings data for this site have not yet been released for publication. Request the current monitoring summary from OneWorld Solar before quoting a figure here. */}
OneWorld Solar has not published production or bill-savings figures for this installation. The scope described above is what the company confirms; anything beyond it should come from OneWorld Solar directly.
What can be stated without qualification is the scope: 1.267 MW of rooftop
generation and 55,000 lb of battery storage, engineered, procured, built,
interconnected and commissioned by one contractor.
## Why this project matters for other facilities
If you operate a distribution center, a manufacturing plant or a warehouse in
the Southeast, this project is the closest reference point we have. The roof is
the asset, the demand charge is usually the problem, and the two need to be
solved together.
- See how the same approach applies across
[solar for manufacturing facilities](/industries/manufacturing).
- Understand the demand-charge mechanics in
[commercial battery storage installation](/services/battery-storage).
- Check what the federal
[30% commercial solar tax credit](/incentives/federal-solar-tax-credit) and
[Section 179 depreciation](/incentives/section-179-solar) do to the net cost.
- Or start from your own bill with the
[commercial solar savings calculator](/calculator).
This system was built in
[Georgia, where OneWorld Solar is headquartered](/commercial-solar-installation-georgia) —
609 Church Street, Vidalia, about as local to this site as a contractor gets.
### Frequently asked questions
**How big is a 1 MW rooftop solar installation?**
A 1 MW rooftop array needs roughly two to three acres of usable roof once you allow for setbacks, fire access pathways, rooftop equipment and shading. That is why megawatt-scale rooftop solar is almost always found on distribution centers, warehouses and manufacturing plants — very few other commercial buildings have that much uninterrupted roof in one place.
**Why pair rooftop solar with battery storage on a distribution center?**
Solar reduces the energy a facility buys, but it does not reliably reduce peak demand, because the utility can set the peak at a moment when the array is not producing. Storage is what addresses the demand charge. On a large distribution center where demand charges are a substantial share of the bill, the battery is often working on a different line of the invoice than the panels.
**Can solar be installed on a working distribution center without shutting it down?**
Yes. Rooftop work happens above an operating building, so the constraint is coordination rather than shutdown: dock scheduling, crane and material lifts, roof loading limits and the electrical tie-in window. The tie-in is the only part that normally needs an outage, and it is usually planned for a weekend or a scheduled maintenance period.
**What are BatteryCube cabinets?**
BatteryCube® is OneWorld Solar's own branded commercial battery energy storage cabinet line, built around CATL cells. At the Samsonite and TUMI site the cabinets sit outdoors on a concrete pad next to the utility transformers. You can read the full specification on the BatteryCube product page.
---
## Woody Folsom Automotive: 1 MW+ of Solar Across Three Dealerships
Source: https://www.owsolar.com/projects/woody-folsom-automotive-1mw-solar
Topic: solar for car dealerships case study
Last updated: 2026-07-30
More than 1 MW of rooftop solar across the Woody Folsom Chevrolet, Ford and Chrysler Dodge dealerships in Georgia — three roofs run as a single engineering and construction program.
This **solar for car dealerships case study** covers three rooftops rather than
one. OneWorld Solar installed more than 1 MW of rooftop photovoltaics across the
Woody Folsom Automotive Group's Chevrolet, Ford and Chrysler Dodge dealerships in
Georgia, and the interesting part is not the capacity — it is that the group
treated three buildings as one program instead of three separate purchases.
Dealerships are good solar buildings for reasons that have nothing to do with
being dealerships. They have large single-story footprints, they run heavy
daytime loads, and they are open when the sun is up. What makes a group like this
unusual is that the same owner controls several of those roofs at once.
## The problem: three roofs, three utility accounts, one owner
A dealership's electrical load is dominated by things that only happen in
daylight: showroom HVAC working against a lot of glass, showroom and lot
lighting, service bay compressors and lifts, and body shop equipment. That is a
near-ideal production match. The difficulty is procedural rather than technical.
Run as three separate projects, a group pays for the same work three times.
Structural and electrical engineering gets redone to the same standard. Three
interconnection applications go into the utility on three schedules. Crews
mobilize and demobilize three times. Equipment is bought in three smaller lots.
And the finance and tax work lands in three unrelated conversations with the
accountant, potentially straddling tax years.
The group operates in
Baxley and Vidalia, Georgia, and we have not confirmed which
individual franchise sits in which town for publication. Rather than guess, the
town-level split is flagged for verification with OneWorld Solar before this page
goes live.
## The solution: one program across three dealership roofs
OneWorld Solar delivered the portfolio under
[commercial solar EPC contracting](/services/commercial-solar-epc): one
engineering standard applied to three buildings, one procurement package, a
coordinated set of interconnection applications, and construction sequenced so
crews moved between stores rather than remobilizing.
Each roof still got its own layout. Dealership roofs are not warehouse roofs —
they are interrupted by rooftop mechanical units, skylights, canopies and parapet
setbacks, and the service side of a store is usually built differently from the
showroom side. What was standardized was the engineering approach, the equipment
and the paperwork, not a copy-and-pasted array.
## The results
{/* INTERNAL — not rendered. Verified production, bill-savings and payback figures for these three sites have not been released for publication. Request the monitoring data and a before-and-after bill comparison from OneWorld Solar before quoting any number here. */}
OneWorld Solar has not published production or bill-savings figures for this installation. The scope described above is what the company confirms; anything beyond it should come from OneWorld Solar directly.
What is documented is the scope: more than 1 MW of rooftop generation across
three Woody Folsom dealerships, engineered, procured, built and interconnected by
one contractor. For a dealer group, the number that usually decides the question
is payback rather than capacity, and that is worked through in
[solar payback for car dealerships](/insights/solar-payback-car-dealerships).
## Why this matters if you own more than one store
If you operate a group, the single most valuable thing you can do is stop
treating each rooftop as a standalone capital request. Bundling gives you better
pricing, one engineering standard, one construction schedule, and a single tax
position to take to your accountant.
- The wider case for
[solar for car dealerships](/industries/automotive) covers load profiles,
canopies and EV charging.
- The [30% commercial solar tax credit](/incentives/federal-solar-tax-credit) and
[Section 179 solar depreciation](/incentives/section-179-solar) are what turn a
multi-site rollout into a defensible capital decision. Your accountant confirms
what you can claim; we supply the evidence.
- If your demand charges are the real problem, read how we approach
[commercial battery storage installation](/services/battery-storage).
- We build this kind of portfolio throughout
[commercial solar installation in Georgia](/commercial-solar-installation-georgia),
from Vidalia.
### Frequently asked questions
**How much solar does a car dealership need?**
It depends on how much of the site is conditioned showroom and how much is service. Across three Woody Folsom stores the combined total passed 1 MW, so a single dealership at that scale is a several-hundred-kilowatt building. Showroom HVAC, lot and showroom lighting, compressors and body shop equipment all run in daylight, which is why dealership load lines up unusually well with production.
**Is it better to do several dealerships at once or one at a time?**
One program covering several sites is almost always cheaper per watt. Engineering standards, module and inverter procurement, the utility interconnection process and crew mobilization are all repeated work when you do stores one at a time. Running them together also means one set of financial paperwork for your accountant instead of three filings spread across different tax years.
**Will rooftop solar interfere with a dealership's roof warranty?**
Not when the attachments follow the roof manufacturer's detail and the work is done by a contractor willing to coordinate with the roofer. That is a standard part of the engineering package. The more important question is remaining roof life. A 25-year array bolted to a roof with eight years left commits you to paying for removal and reinstallation later, so we check roof age before pricing.
**Does solar reduce a dealership's demand charges?**
Only partly, and it should never be sold as a fix. Solar reduces the kilowatt-hours you buy, but the utility can set your monthly peak at a moment when the array is producing little — a cloudy afternoon or just after sunset with the lot lights on. Reducing demand charges reliably takes battery storage sized from your interval data, which is a separate decision from the array.
---
## The Westin Dawn Beach Resort & Spa: 800 kW Hotel Solar Installation in the Caribbean
Source: https://www.owsolar.com/projects/westin-dawn-beach-resort-800kw-solar
Topic: hotel solar installation Caribbean
Last updated: 2026-07-30
The largest hospitality system OneWorld Solar has built: 800 kW of rooftop solar on an operating beachfront resort in St. Maarten, engineered for island grid economics and Caribbean wind loads.
At 800 kW, the **hotel solar installation in the Caribbean** we built for The
Westin Dawn Beach Resort & Spa in St. Maarten is the largest hospitality system
OneWorld Solar has delivered. It is the project we point to when a resort
operator asks whether an array of that scale can be put on a property that never
closes, on an island where every component arrives in a shipping container.
A resort is an unusually good host for solar. The load is genuinely round the
clock, the summer cooling peak lines up with the sunniest part of the year, and
the roofs are large, flat and mostly free of the process equipment that clutters
an industrial building. What changes the arithmetic here is not the building. It
is the grid it sits on.
## Why island power economics are different
Most Caribbean islands generate electricity from imported fuel. The cost of that
fuel, the cost of shipping it and the exposure to interruption all land in the
rate the resort pays, which is why island power is generally both more expensive
and less predictable than power on the mainland Southeast. A system size that
would look marginal in Georgia can look straightforward on an island rate.
The second factor is reliability. Grid interruptions are a service issue at a
resort in a way they are not at a warehouse, because the guest experiences them
directly. That is the reason resort projects so often end up in a conversation
about [islandable microgrid design](/services/micro-grids) rather than a plain
grid-tied array.
Every island utility sets its own rate structure, its own interconnection
requirements and its own rules on exporting to the grid, and all three change.
Nothing on this page should be treated as the current rate or the current rule
set for St. Maarten. Confirm them before modeling a project.
## What we built
Three constraints shaped the delivery more than anything else.
**Wind is the governing load.** On a Caribbean roof the array is designed from
the site's design wind speed backwards: module clamps, rails, attachment
spacing, and then the roof structure itself. The weakest link in that chain sets
the rating for the whole array, so the structural review has to include the
existing building, not just the racking that is bolted to it.
**Shipping is a schedule item, not a purchase order.** Everything arrives by
container. There is no supply house down the road to cover a shortfall, so the
bill of material has to be complete before it ships, spares travel with the main
order, and customs and port clearance are planned as activities with durations
attached.
**The resort keeps trading.** Guest-facing work is the part most contractors
underestimate. Access routes, lift and delivery windows, noise curfews and the
outage window for the electrical tie-in all get agreed with the operator up
front. Our full
[commercial solar EPC scope](/services/commercial-solar-epc) exists partly so
there is one party responsible for holding that plan together instead of three
subcontractors negotiating it live.
## The results
{/* INTERNAL — not rendered. Verified production, bill-savings and availability data for this site have not been released for publication. The capacity and scope shown here come from the previous OneWorld Solar website and need to be confirmed with Doug before this page goes live. Request the current site data from OneWorld Solar before quoting any figure. */}
OneWorld Solar has not published production or bill-savings figures for this installation. The scope described above is what the company confirms; anything beyond it should come from OneWorld Solar directly.
What can be said without qualification is the scale and the class of problem:
800 kW of rooftop generation on an operating beachfront resort, on an island,
engineered for Caribbean wind.
One honest note on incentives. The 30% federal investment tax credit, Section
179 and bonus depreciation are United States tax provisions. A property in St.
Maarten is generally outside their scope, and any local incentive is a question
for the resort's own tax advisor rather than for its solar contractor.
## If you operate a resort in the islands
- The same design approach is described in
[solar for hotels and resorts](/industries/hospitality).
- For regional context, see
[commercial solar installation in the Caribbean](/commercial-solar-installation-caribbean).
- Systems at every scale, from 15 kW to 1.267 MW, are collected in
[commercial solar projects](/projects).
- If the property is in the US or a US territory, the
[commercial solar incentives](/incentives) that apply are worth checking
early, because they change the size of system that makes sense.
### Frequently asked questions
**Why does solar make more sense on a Caribbean resort than on a mainland hotel?**
Because the price of electricity is usually higher and less predictable. Most Caribbean islands generate power from imported fuel, so the utility rate carries the cost and the volatility of shipping that fuel in. A resort buying power at an island rate reaches a workable payback at a system size that would not clear the bar on the mainland. The specific rate on any island has to be checked before you model anything.
**Can an 800 kW array be installed on a resort that stays open?**
Yes, and that is the normal condition rather than the exception. Resorts do not close for construction, so the work is planned around occupancy instead: roof access routes that avoid guest areas, delivery and lift windows outside quiet hours, noise-generating work confined to agreed times, and the electrical tie-in scheduled for the lowest-occupancy period the operator can offer.
**How is a Caribbean rooftop solar array engineered for hurricanes?**
Wind is the governing load, not snow or seismic activity, so the design starts from the site's design wind speed and works back through the module clamps, the rails, the attachment points and the roof structure itself. The weakest element in that chain sets the rating of the array. On island sites this usually means more attachment points, shorter rail spans and heavier hardware than the same array would need on the mainland.
**What makes island solar projects harder to deliver than mainland ones?**
Logistics and lead time. Every module, rail, inverter and fastener arrives by sea container, so a missing part is a shipping cycle away rather than a supplier run. Projects are procured with that in mind: complete bills of material ordered in full, spares shipped with the main order, and customs and port clearance treated as scheduled activities in the program rather than paperwork done at the end.
---
## Virgin Islands Port Authority: 451.5 kW Public Sector Solar on St. Thomas
Source: https://www.owsolar.com/projects/virgin-islands-port-authority-451kw-solar
Topic: public sector solar Virgin Islands
Last updated: 2026-07-30
451.5 kW of ground mount solar for a public authority on St. Thomas: coastal siting, salt-air corrosion, hurricane-zone structural design and a procurement process run in public.
The 451.5 kW ground mount array OneWorld Solar built for the Virgin Islands Port
Authority on St. Thomas is a **public sector solar** project in the **Virgin
Islands** that had to satisfy two audiences at once: the engineers who would
operate it, and the procurement process that had to justify the award in public.
Public authorities are among the better candidates for solar. They occupy their
buildings for decades, they are not going to relocate, they hold land, and they
answer to constituents who read the utility bill as a line in a public budget.
What they do not have is the freedom to negotiate a scope informally.
## What makes a public authority project different
The specification comes first. An authority publishes what it wants, takes
competing bids against that document and must be able to defend the award later.
That inverts the usual sequence: the engineering, the structural calculations
and the interconnection technical data all have to be complete and defensible at
bid stage rather than developed once the contract is signed.
This is one of the reasons we run projects as a single
[commercial solar EPC contract](/services/commercial-solar-epc). When one party
holds the design, the procurement and the construction, the document the
authority evaluated is the same document that gets built. Our VP of Engineering is a licensed Professional Engineer and a NABCEP board-certified
photovoltaic system inspector, which matters when the deliverable is a stamped
package that a public body will publish.
## Designing for a coastal hurricane zone
Two environmental conditions drove the design, and both of them are about
durability rather than output.
**Salt air.** A coastal ground mount is exposed from grade upward, and salt
attacks every fastener, every dissimilar-metal joint and every enclosure
penetration. The response is unglamorous and mostly invisible in a photograph:
material and coating specifications chosen for the environment, dissimilar
metals isolated at connections, enclosure ratings selected for a marine setting.
It costs more at construction and it is the difference between a twenty-year
asset and a ten-year one.
**Wind.** In a hurricane zone the array is engineered from the site's design
wind speed back through the modules, the clamps, the rails and the foundations.
On a ground mount the foundations are the item that most often gets
under-designed, because they are the part nobody sees on a finished site.
We are not publishing production, savings or availability figures for this
project. The capacity and mounting type here come from the previous OneWorld
Solar website and predate our current records. Ask us for the verified data
rather than working from a number on a web page.
## The results
{/* INTERNAL — not rendered. Verified production and performance data for the Virgin Islands Port Authority system have not been released for publication, and the details shown here still need to be confirmed with Doug. Request the current data from OneWorld Solar before quoting any figure. */}
OneWorld Solar has not published production or bill-savings figures for this installation. The scope described above is what the company confirms; anything beyond it should come from OneWorld Solar directly.
On incentives, one point is worth stating carefully. The U.S. Virgin Islands is
a United States territory, so federal programs such as the
[30% commercial solar tax credit](/incentives/federal-solar-tax-credit) may be
relevant to a project there. Whether any of it applies to a specific entity
depends on that entity's tax position and on the rules in force at the time. A
public authority has a very different posture from a private company. That
determination belongs to the customer's tax advisor, not to us.
## Where to go next
- Other work of this scale is collected in our
[commercial solar projects in the Southeast and Caribbean](/projects).
- The regional picture is set out in
[commercial solar installation in the Caribbean](/commercial-solar-installation-caribbean).
- If continuity of supply is part of the brief, read
[commercial microgrid installation](/services/micro-grids).
- For US and US-territory owners weighing net cost, start with
[Section 179 solar depreciation](/incentives/section-179-solar).
### Frequently asked questions
**How is a public sector solar project procured differently from a private one?**
The scope is fixed before the price is. A public authority publishes a specification, receives competing bids against it and has to be able to defend the award afterwards, so the technical package carries far more weight than it does in a private negotiation. For a contractor this means the engineering, the structural calculations and the interconnection data have to be complete and defensible at bid stage, not developed later.
**What does salt air do to a solar installation?**
It attacks the metal. Coastal sites accelerate corrosion at every dissimilar-metal joint, every fastener and every enclosure penetration, and a ground mount is more exposed than a rooftop because the structure runs all the way to grade. The defenses are material selection, coating specification, isolating dissimilar metals at connections and choosing enclosures rated for the environment rather than the cheapest option that passes inspection.
**Do US federal solar incentives apply in the U.S. Virgin Islands?**
The U.S. Virgin Islands is a United States territory, so federal incentive programs may be available, but eligibility depends on the entity, its tax position and the program rules in force at the time. A public authority in particular has a different tax posture from a private company. Any project should be modeled only after the customer's own tax advisor confirms what applies.
**Why choose a ground mount instead of a roof array on a coastal site?**
Usually because the land is available and the roofs are not suitable. Ground mounts allow the array to be oriented and tilted for output rather than following whatever plane the roof gives you, and they keep maintenance off the roof membrane. The trade-off is foundations, site work, perimeter security and a structure that has to resist wind from grade upward.
---
## 450 kW of Solar for Broiler Houses Across a 14-House Georgia Farm
Source: https://www.owsolar.com/projects/poultry-450kw-14-house-broiler-solar
Topic: solar for broiler houses
Last updated: 2026-07-30
The largest poultry site OneWorld Solar has built to date: 450 kW of rooftop solar spread across all 14 houses on a southeast Georgia broiler farm, delivered under one EPC contract.
**Solar for broiler houses** works for one blunt reason: the load and the sunshine
arrive at the same time. Tunnel fans, stir fans, cool-cell pumps and wells pull
hardest on a hot afternoon, which is exactly when a roof-mounted array produces
most. This project put 450 kW across all 14 houses on a broiler farm in southeast
Georgia, and it is the largest single poultry site OneWorld Solar has built.
The grower is not named here. What is worth publishing is the sizing logic and
the way a job like this is delivered, because both transfer directly to any
multi-house operation looking at the same decision. The farm sits inside a
portfolio of more than 4.8 MW that we have installed on U.S. poultry houses.
## The problem: 14 roofs, one power bill, one growing season
A 14-house broiler operation is a small industrial site that happens to be
agricultural. The electrical load is heavy, seasonal and almost entirely daytime,
and it scales with house count in a way that makes a partial answer unattractive.
Three things had to be resolved before a single rail went down:
- **Roof capacity, not roof area.** Broiler houses give you long, unbroken metal
planes with nothing to shade them, which is close to ideal. The limiting factor
is structural: purlin spacing, attachment detail and uplift, not square footage.
- **Doing 14 houses without doing 14 projects.** Engineering, the utility
interconnection package and mobilization are largely fixed costs. Split across
a handful of roofs they hurt; split across 14 they are the reason the cost per
watt on a farm this size beats a two-house system.
- **Timing around bird placement.** Work on an operating farm is scheduled around
flocks, not the other way around. That is a coordination problem, and it is the
contractor's to solve.
## The solution: one array, one contract, all 14 houses
OneWorld Solar delivered the farm as a single
[commercial solar EPC contract](/services/commercial-solar-epc): engineering and
stamped drawings, the utility interconnection application, procurement,
construction across all 14 roofs, and commissioning. The array is roof mounted
using racking developed for exactly this structure — long metal agricultural
roofs are the application our 2020 racking patent came out of.
The per-house average of about 32 kW is arithmetic, not a
design rule. It is published here because growers ask for a benchmark, and it
sits at the upper middle of the range we have seen across our
[solar panels for poultry farms](/industries/poultry) portfolio. Your own number
depends on fan horsepower and flock schedule far more than on house count.
A farm this size is a strong USDA Rural Energy for America Program candidate:
documented energy use, an unambiguously rural address, a clear producer
relationship. It is still a competitive, scored grant, and no contractor can
promise you an award. We prepare the technical and energy-assessment portions as
part of the job — see the [USDA REAP grant for solar](/incentives/usda-reap-grant)
page for what the application actually asks for.
## The results
{/* INTERNAL — not rendered. Verified production and bill-savings data for this farm have not been released for publication. Request the current monitoring summary and a before-and-after bill comparison from OneWorld Solar before quoting any figure here. */}
OneWorld Solar has not published production or bill-savings figures for this installation. The scope described above is what the company confirms; anything beyond it should come from OneWorld Solar directly.
What can be stated without qualification is the scope: 450 kW of rooftop
generation across 14 broiler houses, engineered, procured, built and
interconnected by one contractor on a working farm.
## What a multi-house grower should take from this
If you run ten houses or more, this is the closest reference point we have. The
roofs are usually the easy part; the value is in doing every house under one
engineering and interconnection effort instead of returning three times.
- Compare it against the
[210 kW 6-house breeder farm array](/projects/poultry-210kw-6-house-breeder-solar)
and the [410 kW 16-house broiler system](/projects/poultry-410kw-16-house-broiler-solar)
to see how differently the per-house figure lands.
- Read what drives
[poultry farm solar cost and results](/insights/solar-for-poultry-farms-cost-and-results)
before you compare quotes.
- If outage protection matters more to you than savings, start with
[commercial micro-grid installation](/services/micro-grids).
- Run your own numbers with the
[commercial solar savings calculator](/calculator).
This farm is one of many we build across
[commercial solar installation in Georgia](/commercial-solar-installation-georgia),
from our base at 609 Church Street in Vidalia — in the middle of poultry country.
### Frequently asked questions
**How much solar does a 14-house broiler farm need?**
This farm took 450 kW, which works out to roughly 32 kW per house as a simple average. Do not size your own farm from that figure. Tunnel fan horsepower, lighting type, how many wells you pump and how many flocks you place a year can move two farms with identical house counts apart by a third. We size from twelve months of billing data and a walk of the roofs.
**Can solar go on all of my broiler houses at once?**
Usually yes, and it is normally cheaper than doing them in phases. Mobilization, engineering, the interconnection application and the utility review are largely fixed costs, so spreading them over 14 roofs instead of four lowers the cost per watt. The constraint is capital and, if you are applying for grant funding, the size of the award you are chasing rather than the roofs themselves.
**Does a rooftop array interfere with tunnel ventilation or bird cooling?**
It should not. Panels sit above the roof plane on rails and do not obstruct tunnel inlets, fans or cool cells, all of which are in the sidewalls and end walls. The engineering questions are structural rather than operational: purlin spacing, attachment method, wind uplift and remaining roof life. We check all four during the site walk before we price anything.
**Do I need battery storage to protect ventilation during an outage?**
You need something, and a grid-tied solar array alone is not it, because the inverters shut down when the grid goes down. Either a generator, a battery sized to carry fans and controllers, or a micro-grid that can island the farm will do the job. If your standby generator is near the end of its life, price a battery against replacing it before you buy more diesel.
---
## 210 kW of Solar for Poultry Breeder Houses on a 6-House Farm
Source: https://www.owsolar.com/projects/poultry-210kw-6-house-breeder-solar
Topic: solar for poultry breeder houses
Last updated: 2026-07-30
A 210 kW rooftop array across six breeder houses in southeast Georgia — the densest per-house sizing of the poultry farms we publish, and a different load profile from a broiler operation.
**Solar for poultry breeder houses** sizes differently from solar for broilers,
and this farm is the clearest example we have. Six houses, 210 kW, roof mounted —
35 kW per house, the densest per-house sizing of the three poultry farms
OneWorld Solar publishes, on the smallest farm of the three.
The operation is a breeder farm in southeast Georgia and is not named at the
grower's request. It sits within the 4.8 MW-plus we have installed on U.S.
poultry houses, and it is the project we point smaller operations to when they
assume solar only works at fourteen houses and up.
## Why breeder houses have a different load profile
A finishing broiler house is defined by its hot-weather peak: tunnel fans and
cool cells running hard on summer afternoons, then far less in cool weather. A
breeder house is defined by its run hours. Flocks are held on a light program, so
lighting runs long and predictably; feed systems, water, nest equipment and egg
handling all draw during the working day.
The practical consequence is a flatter, longer daytime curve rather than a sharp
seasonal spike. That curve suits a rooftop array well, because a high share of
what the panels make is consumed in the house rather than exported, and
self-consumed power is worth full retail to the grower. It also means the
economics are less dependent on a handful of hot months than a broiler farm's are.
## The solution: 210 kW across six roofs
OneWorld Solar built the farm as a single
[commercial solar EPC contract](/services/commercial-solar-epc) — engineering and
stamped drawings, the utility interconnection application, procurement,
construction and commissioning. Racking on long agricultural metal roofs is the
application our own racking patent came out of, and it is why a six-house farm
does not carry the mobilization overhead you might expect.
The 35 kW per house figure is a simple average of system
size over house count, published as a benchmark rather than a design rule. Read
it next to the
[450 kW 14-house broiler farm](/projects/poultry-450kw-14-house-broiler-solar) at
about 32 kW per house and the
[410 kW 16-house broiler system](/projects/poultry-410kw-16-house-broiler-solar) at
about 26 kW, and the point makes itself: house count does not size an array. Bills
do.
Six-house operations are often told they are too small to bother applying for
federal grant funding. That is not our experience. The
[USDA REAP grant for solar](/incentives/usda-reap-grant) is scored on the merits
of the application, and a well-documented small farm can compete. It is still
competitive, still discretionary, and still something no contractor can promise
you.
## The results
{/* INTERNAL — not rendered. Verified production and bill-savings data for this farm have not been released for publication. Request the monitoring summary and a before-and-after bill comparison from OneWorld Solar before publishing a figure here. */}
OneWorld Solar has not published production or bill-savings figures for this installation. The scope described above is what the company confirms; anything beyond it should come from OneWorld Solar directly.
The scope stands on its own: 210 kW of rooftop generation across six breeder
houses, engineered, procured, built and interconnected under one contract.
## What this means for other breeder operations
If you run breeder houses, do not benchmark yourself against a broiler farm's
kilowatts per house. Your run hours are longer, your peak is lower, and both
change the answer. Ask any contractor to show you the daytime load curve they
sized from.
- The full picture on
[solar panels for poultry farms](/industries/poultry) covers roof mount versus
ground mount and what solar will not do for you.
- Cost drivers are broken down in
[poultry farm solar cost and results](/insights/solar-for-poultry-farms-cost-and-results).
- If keeping ventilation alive through an outage matters more than savings, look
at [commercial battery storage installation](/services/battery-storage).
- We work throughout
[commercial solar installation in Georgia](/commercial-solar-installation-georgia)
from Vidalia, and further across the Southeast.
### Frequently asked questions
**How is solar for breeder houses different from solar for broiler houses?**
The roofs are similar; the load underneath them is not. Breeder houses typically run longer lighting hours to hold the flock on a light program, plus feed, water and egg-handling equipment, and they usually carry lighter peak tunnel ventilation than a finishing broiler house. That tends to produce a flatter, longer daily load curve, which self-consumes solar well but peaks less dramatically on hot afternoons.
**Why does this smaller farm carry more kilowatts per house?**
Because sizing follows the bill, not the building count. This farm landed at 35 kW per house, against roughly 32 kW on a 14-house broiler farm and roughly 26 kW on a 16-house farm. Longer daily run hours, usable roof area and the funding available all push that number. It is the clearest evidence we have that house count alone is a poor way to price a poultry array.
**Is a six-house farm big enough for commercial solar to be worth it?**
Yes. Six houses is a real commercial load, and the fixed costs of engineering, interconnection and mobilization are still spread over 210 kW. The cost per watt will not match a sixteen-house project, but the economics are driven by what you pay per kilowatt-hour and which incentives you qualify for far more than by whether the array is 210 kW or 450 kW.
**Will solar affect my light program or my breeder flock?**
No. The array sits above the roof plane and has no connection to interior lighting, controllers or ventilation equipment. What changes is where the electricity comes from during daylight hours, not how the house is run. The only operational contact point is construction scheduling, which is planned around your flock cycle rather than around our crews.
---
## Swainsboro Supply Company: 117 kW Ground Mount Commercial Solar in Georgia
Source: https://www.owsolar.com/projects/swainsboro-supply-117kw-ground-mount-solar
Topic: ground mount commercial solar Georgia
Last updated: 2026-07-29
A 117 kW ground mount array for Swainsboro Supply Company in Swainsboro, Georgia. Its president is on record: nearly no maintenance issues and about $1,800 a month off the power bill.
**Ground mount commercial solar in Georgia** answers a question that rooftop
solar cannot: what do you do when the building is not the right place for the
array? For Swainsboro Supply Company in Swainsboro, Georgia, the answer was 117 kW
of photovoltaics on the ground rather than on a roof.
It is also one of the few projects on this site where the customer has put a
number on the outcome in his own words, which makes it more useful than most
case studies of its size.
## The problem: a good load, and a roof that was not the answer
A building supply operation runs the kind of load solar suits — daytime hours,
lighting, conditioning, shop and yard equipment, and a bill that arrives every
month whether trade is good or not.
Putting an array on a commercial roof is only the cheaper option when the roof
deserves it. Three things routinely rule a roof out: remaining roof life shorter
than the 25-year-plus life of the array, a structure that will not carry the
additional load without reinforcement, and a building orientation that wastes a
meaningful share of the available production. When any of those apply and there
is open ground near the service entrance, a ground mount is the better structure.
We have not published a site-specific reason for the structure choice, because
the roof survey and structural assessment for this project are not in our
publishable record. The three drivers above are the ones that decide it on most
commercial sites. Confirm the specifics with OneWorld Solar before restating them
as fact.
## The solution: 117 kW on fixed-tilt ground mount racking
The array was delivered as a
[commercial solar EPC project](/services/commercial-solar-epc) — design,
engineering, the utility interconnection package, foundations and racking,
electrical work, and commissioning. A ground mount adds site work that a roof
mount does not have (foundations, trenching, a conductor run back to the service)
and removes work that a roof mount does (membrane penetrations, uplift
calculations, roof-warranty coordination, working at height).
The trade is usually worth it when land is available. Fixing tilt and azimuth
properly rather than inheriting the building's heading raises output per
installed watt, and rows you can walk between are cheaper to inspect and clean
for the next twenty-five years than an array you need a lift to reach.
## The results
> "We have had nearly no maintenance issues, and the savings on our monthly power
> bill are about $1,800. It has been a great financial decision for the company."
>
> — Dal Durden, President, Swainsboro Supply Company
That is about $1,800 a month off the power bill, in the
customer's own words. Two honest caveats belong with it: the period the figure
covers is not documented in our records, and savings on any site depend on that
site's rate structure, consumption and the incentives the owner actually
qualified for. Treat it as a real reported outcome for one Georgia business, not
as a projection for yours.
The maintenance point deserves as much attention as the savings. A fixed-tilt
array has no moving parts, and "nearly no maintenance issues" is what a
well-engineered system should look like years after the crews leave.
## Why this matters for similar Georgia businesses
If you run a single commercial or light industrial site with a daytime load and
some open ground, this is the closest reference project we have.
- The same engineering thinking scales up in
[solar for manufacturing facilities](/industries/manufacturing), and much
further in the
[1.267 MW Samsonite and TUMI rooftop and battery project](/projects/samsonite-tumi-1267kw-rooftop-solar-battery).
- What a system like this costs is broken down in
[commercial solar cost per kW in Georgia](/insights/commercial-solar-cost-per-kw-georgia).
- [Section 179 solar depreciation](/incentives/section-179-solar) and the
[30% federal solar tax credit](/incentives/federal-solar-tax-credit) are what
move the net cost. Your accountant validates what you can claim.
- Start from your own bill with the
[commercial solar savings calculator](/calculator), or see the rest of our
[commercial solar installation work in Georgia](/commercial-solar-installation-georgia).
### Frequently asked questions
**Is a ground mount better than a roof mount for a commercial building?**
It is better whenever the roof is the weak link. A ground mount lets the array face the right way at the right tilt instead of accepting whatever heading the building was built on, it keeps racking off a roof membrane, and it makes panels reachable without lift equipment. Roof mounting wins when land is scarce or expensive, because it uses an asset you already own.
**How much land does a 117 kW ground mount need?**
Roughly half an acre to an acre in practice, depending on row spacing, tilt and how much winter shading you are willing to accept between rows. The usable area matters more than the total: you need a reasonably level, unshaded, well-drained piece of ground close enough to the service entrance that the trenching and conductor run do not eat the savings.
**How much maintenance does a commercial solar array actually need?**
Very little, which is what Swainsboro Supply Company's president reported after living with the system. There are no moving parts in a fixed-tilt array. Practical maintenance is periodic visual inspection, keeping vegetation off the rows, checking connections and watching the monitoring for an underperforming string. Inverters are the component most likely to need attention over the system's life.
**What size business does a 117 kW system suit?**
A single-site commercial or light industrial operation with a substantial daytime load — a supply company, a shop, a small plant or a warehouse. It is well below the megawatt-scale rooftop systems we build for distribution centers, and it is a realistic first project for an owner who wants to see the result on a bill before committing further capital.
---
## Valencia College: 102 kW College Campus Solar Installation in Orlando, Florida
Source: https://www.owsolar.com/projects/valencia-college-102kw-rooftop-solar
Topic: college campus solar installation Florida
Last updated: 2026-07-30
102 kW of rooftop solar on a working college campus in Orlando, built around the academic calendar and signed off by a facilities team that had to keep classes running.
The 102 kW **college campus solar installation** OneWorld Solar built at
Valencia College in Orlando, **Florida** is a good illustration of why education
projects run differently from commercial ones. The engineering is not the hard
part. The hard part is that a campus is a working environment with a fixed
calendar, several departments with a claim on the decision, and no tolerance for
a class being disrupted by a crane.
Campuses are otherwise strong candidates. They have large flat roofs, daytime
loads that line up well with solar output, long-term ownership of their
buildings and a reason beyond economics to build. What they need from a
contractor is a schedule that respects the term dates and a process that keeps
every stakeholder informed.
## Building around the academic calendar
Most commercial projects are sequenced for efficiency. A campus project is
sequenced around the dates the college cannot move. Crane lifts, roof
deliveries, core drilling and the electrical tie-in get pushed into the gaps
between terms or into the summer; quieter work continues while classes run. The
program is built backwards from the calendar, and the contractor either accepts
that or should not bid the job.
The other difference is the number of people who have to say yes. Facilities
owns the roof and the electrical infrastructure. Procurement owns the contract.
Risk management owns the warranty and insurance position. The roofing
manufacturer has to accept the attachment detail or the roof warranty is at
stake. Bringing all of them into one review early is what keeps a campus project
from stalling.
## What we built
The array was delivered as a single
[commercial solar EPC contract](/services/commercial-solar-epc): engineering,
stamped drawings, the utility interconnection package, procurement, construction
and commissioning under one agreement. On a campus that structure earns its
keep, because the facilities team has one number to call rather than a designer,
an installer and an electrician pointing at each other.
If a college wants the array used in coursework, say so at design stage. Data
access, monitoring granularity and whether students can see live output are
specification decisions. Retrofitting a teaching interface onto a system that
was commissioned without one is possible but avoidable.
## The results
The college's own assessment is the part of this project we can quote directly.
> Your performance throughout the project was professional, and you treated all
> parties with the utmost respect.
>
> — **Helene Loiselle**, AVP Facilities, Valencia College
That is a facilities executive commenting on conduct on an occupied campus,
which on this class of project is the outcome that gets a contractor invited
back.
{/* INTERNAL — not rendered. Verified production and bill-savings data for the Valencia College array have not been released for publication, and the capacity and scope shown here come from the previous OneWorld Solar website and still need confirming with Doug. Request the current monitoring summary from OneWorld Solar before quoting a figure. */}
OneWorld Solar has not published production or bill-savings figures for this installation. The scope described above is what the company confirms; anything beyond it should come from OneWorld Solar directly.
## If you manage a campus in Florida
- Comparable work at other scales is collected in our
[commercial solar projects](/projects).
- For state context, including the utility and permitting landscape, see
[commercial solar installation in Florida](/commercial-solar-installation-florida).
- Public and institutional owners should read
[commercial solar incentives](/incentives) before sizing anything, because the
incentive position of a nonprofit or public entity differs from a taxable
company's.
- If demand charges are a large part of the campus bill, generation alone will
not address them.
[Commercial battery storage installation](/services/battery-storage) explains
why.
### Frequently asked questions
**How is solar construction scheduled around an academic calendar?**
By treating the calendar as a hard constraint rather than a preference. The disruptive activities, crane lifts, roof deliveries, core drilling and the electrical tie-in, are pushed into breaks between terms or into the summer, while quieter work can continue during teaching. The schedule is built backwards from the dates the campus cannot move, which is the opposite of how a commercial project is normally sequenced.
**Who has to approve a solar project on a college campus?**
More people than on a private building. Facilities and maintenance own the roof and the electrical infrastructure, procurement owns the contract, risk management owns the insurance and warranty position, and the roofing warranty holder has to accept the attachment method. Sustainability staff and sometimes faculty have an interest too. Getting all of them into the same review early is faster than dealing with them one at a time.
**Can a campus solar array be used for teaching?**
Yes, and it is one of the reasons colleges build them. A monitored array gives real generation data from a real system on the students' own campus, which supports coursework in engineering, environmental science, sustainability and the trades. If teaching use matters, the monitoring platform and data access should be specified at design stage rather than added later.
**Does a rooftop array void a roof warranty?**
It can if the attachment method is not approved by the warranty holder. The correct order is to identify the roof system, its age and its warranty terms before the array is designed, then select an attachment and flashing detail the manufacturer will accept, and where required have the manufacturer's own contractor perform the penetrations. On an older roof, the honest recommendation is sometimes to replace it first.
---
## Georgia Power: 1.2 MW of Ground Mount Solar Across Four Sites
Source: https://www.owsolar.com/projects/georgia-power-1-2mw-ground-mount-solar
Topic: utility solar contractor Georgia
Last updated: 2026-07-30
Ground mount solar totalling 1.2 MW across four Georgia Power locations. Building for the utility itself means being held to the standards the utility applies to everyone else.
Most commercial buyers checking out a **utility solar contractor in Georgia**
want the same thing: evidence that the contractor can get a project through the
utility's review without the schedule falling apart. OneWorld Solar's answer to
that is 1.2 MW of ground mount solar built across four Georgia Power locations.
Working for the utility itself is a particular kind of reference. A utility does
not relax its construction, protection or interconnection standards when the
customer is its own facilities department. If anything it is stricter, because
the people signing off the work wrote the rules.
## The problem: the reviewer and the customer are the same organization
On a normal commercial project there is a useful separation. You design and build
for the customer, and the utility reviews the interconnection at arm's length.
When the customer is the utility, that separation disappears. The construction
standard, the protection settings, the labeling, the grounding, the site access
rules and the commissioning record are all judged by the organization that
defined them.
That changes what the job asks for. It rewards contractors who document properly
and who understand the interconnection process as engineering rather than as
paperwork someone else deals with. It punishes anyone who treats a stamped
drawing as a formality.
The 1.2 MW capacity and the four-location count are carried over from the legacy
OneWorld Solar site and have not been re-confirmed against project records. They
are marked for verification, along with the site locations, and should not be
quoted in a proposal or a press release until Doug confirms them.
## The solution: four ground mount arrays to a utility standard
Ground mount arrays across four separate sites are a portfolio problem before
they are an engineering one: four sets of site conditions, four foundation
designs, four points of interconnection and four commissioning packages, held to
one standard. That is exactly the work a
[commercial solar EPC contract](/services/commercial-solar-epc) exists to
absorb — one contractor carrying engineering, procurement, construction and
interconnection instead of a general contractor coordinating three specialists.
The interconnection engineering behind projects of this type is led by our VP of Engineering, a Professional Engineer licensed in six states
and a NABCEP-certified photovoltaic system inspector who has worked on medium-
and high-voltage interconnections of utility-scale generators since 1992. His
background is set out on the
[OneWorld Solar leadership page](/about).
## The results
{/* INTERNAL — not rendered. No production, availability or performance data has been released for these four systems. The capacity and site count above also require confirmation. Request both from OneWorld Solar before publishing any figure from this project. */}
OneWorld Solar has not published production or bill-savings figures for this installation. The scope described above is what the company confirms; anything beyond it should come from OneWorld Solar directly.
What the project supports is narrower and more useful than a savings number: a
utility in Georgia contracted this company to build generation on its own
property, and the work was completed to the standards that utility sets.
## What this means if you are buying solar in Georgia
If you are a public sector body, an institution or a business whose procurement
requires evidence rather than enthusiasm, this is the reference worth asking
about. The questions to put to any bidder are simple: who signs your drawings,
who runs your interconnection applications, and what have they built under
utility review.
- See the industries we build for in
[commercial solar by industry](/industries), from agriculture to manufacturing.
- A smaller, privately owned example of the same structure is the
[117 kW ground mount at Swainsboro Supply Company](/projects/swainsboro-supply-117kw-ground-mount-solar).
- For a private business, the
[30% commercial solar tax credit](/incentives/federal-solar-tax-credit) is what
reshapes the capital case; utilities and tax-exempt owners follow different
rules, and your finance team should confirm which apply.
- The rest of our
[commercial solar installation work in Georgia](/commercial-solar-installation-georgia)
runs from Vidalia across the state.
### Frequently asked questions
**Why does building solar for a utility matter to a commercial buyer?**
Because a utility applies its own construction, safety and interconnection standards to its own facilities, and those are the same standards it applies when reviewing your project. A contractor that has built to them on the utility's property has already worked inside that rulebook. It says nothing about price, but it is a reasonable proxy for whether the paperwork and the workmanship will survive review.
**What is different about a ground mount on a utility site?**
Mostly the documentation and the access requirements rather than the panels. Site security, clearances, grounding, labeling, protection settings and the commissioning record all get scrutinized more closely than on a typical commercial site. The photovoltaic engineering itself — foundations, racking, tilt, row spacing, conductor runs — is the same work we do for a private landowner.
**Does OneWorld Solar work on public sector and institutional projects?**
Yes. Alongside utility work, our project history includes a state park, a college, a municipal utility commission and a church, in addition to commercial and agricultural sites. Public and institutional buyers tend to need a clear procurement trail, stamped engineering and a contractor who can carry the interconnection process end to end, which is how we structure every EPC contract.
**Who does the interconnection engineering on projects like this?**
Our VP of Engineering leads it. He has been a licensed electrical contractor since 1992, is a Professional Engineer licensed in Georgia, South Carolina, North Carolina, Florida, Virginia and Texas, and is a NABCEP-certified photovoltaic system inspector. He has worked on medium- and high-voltage interconnections of utility-scale generators including photovoltaic, hydroelectric and landfill gas.
---
## 410 kW of Solar Panels on Chicken Houses: a 16-House Broiler Farm
Source: https://www.owsolar.com/projects/poultry-410kw-16-house-broiler-solar
Topic: solar panels on chicken houses
Last updated: 2026-07-30
A 410 kW rooftop array spread over 16 broiler houses in southeast Georgia — the lowest per-house sizing of the three poultry farms we publish, and a useful lesson in what actually caps an array.
Sixteen houses, 410 kW. Putting **solar panels on chicken houses** at this scale
is one of the more instructive projects we publish, because the headline number
is smaller per house than on the 14-house farm we built — and the reason for that
is a more useful lesson for a grower than the capacity itself.
The farm is a broiler operation in southeast Georgia, and it is not named at the
grower's discretion. It forms part of the 4.8 MW-plus that OneWorld Solar has
installed on U.S. poultry houses. The array is roof mounted across all 16 houses
and was delivered under one contract.
## The problem: more houses does not automatically mean more kilowatts
Growers benchmark by house count because it is the only number everyone has. It
is a weak proxy. Averaged out, this farm carries around
26 kW per house, against roughly 32 kW per house on the
[450 kW 14-house broiler farm](/projects/poultry-450kw-14-house-broiler-solar) and
35 kW per house on the
[210 kW 6-house breeder farm](/projects/poultry-210kw-6-house-breeder-solar). Four
things routinely produce that spread, and normally more than one is in play:
- **Usable roof area, not total roof area.** Ridge zones, eave setbacks and any
run where purlin spacing will not carry the load all come off the top before a
single module is placed.
- **Orientation and roof pitch.** Houses are built on the heading that suited the
farm layout, not the sun. A less favorable heading changes what a given square
foot is worth and can change whether covering it is worth the racking.
- **The electrical load itself.** Fan packages, lighting type and flock schedule
differ farm to farm. Older or shorter houses often draw less than newer ones.
- **The budget or the grant award.** A capped project cost is a real design
constraint. When a farm is building around an expected award, the array is
sized to the funding, and that is a rational decision rather than a compromise.
We are not publishing the site-specific reason this farm sized where it did.
The load study, roof survey and funding structure belong to the grower, and we
will not guess in public. Treat the four drivers above as the checklist to run
against your own houses, not as a diagnosis of this one.
## The solution: all 16 roofs under one EPC contract
OneWorld Solar handled the farm as a single
[turnkey commercial solar EPC project](/services/commercial-solar-epc):
engineering, stamped drawings, the utility interconnection package, procurement,
construction and commissioning. Doing 16 roofs in one mobilization is the main
reason a farm of this size can reach a competitive cost per watt; the fixed costs
of engineering and utility review are carried once, not sixteen times.
Rural agricultural producers building at this scale are usually looking at the
[USDA REAP grant for solar](/incentives/usda-reap-grant) alongside the
[30% federal solar tax credit](/incentives/federal-solar-tax-credit). Awards are
competitive and scored, so nobody can promise you one, and what you can actually
claim is validated by your accountant, not by us.
## The results
{/* INTERNAL — not rendered. Verified production and bill-savings data for this farm have not been released for publication. Request the current monitoring summary from OneWorld Solar before publishing any performance or savings figure for this site. */}
OneWorld Solar has not published production or bill-savings figures for this installation. The scope described above is what the company confirms; anything beyond it should come from OneWorld Solar directly.
The scope is not in question: 410 kW of rooftop generation across 16 broiler
houses, engineered, built and interconnected on an operating farm.
## What this means if you run broiler houses
The transferable point is that a proposal quoting kilowatts per house without
having walked your roofs is a guess. Ask what usable roof area the designer
measured, what heading your houses sit on and what the array size would be if the
budget moved.
- Start with the fundamentals on
[solar panels for poultry farms](/industries/poultry).
- Compare the cost drivers in
[poultry farm solar cost and results](/insights/solar-for-poultry-farms-cost-and-results).
- See how the same crews work across
[commercial solar installation in Georgia](/commercial-solar-installation-georgia).
- Or put your own bill into the
[commercial solar savings calculator](/calculator) before you talk to anyone.
### Frequently asked questions
**How many solar panels fit on a chicken house roof?**
Fewer than the roof area suggests. You lose the ridge, the eave edges, any run where the purlin spacing will not carry the load, and whatever the roof manufacturer's attachment detail costs you in setbacks. On this farm the finished average landed near 26 kW per house. A site walk that measures usable plane rather than total plane is the only way to get this right before you sign.
**Why is this array smaller than the 450 kW farm with fewer houses?**
Because house count is a rough proxy for load, not a formula. Older or shorter houses, lighter fan packages, less usable roof and a capped project budget all pull the finished size down. The 14-house farm we built came in at roughly 32 kW per house and this 16-house farm at roughly 26 kW. Both are correctly sized for their own bills.
**Should I size solar to cover my whole poultry power bill?**
Usually not. Covering every kilowatt-hour means paying for capacity that exports at a lower value than what you save by self-consuming, and it can push the project past the funding you have available. Sizing to your daytime load and your budget generally produces a better return than sizing to your annual total, particularly when a grant award caps the project cost anyway.
**Does the age of my chicken houses affect whether solar makes sense?**
Yes, and it is the question most growers skip. A solar array outlives most metal roofs it is bolted to. If your houses need re-roofing within the next decade, you are committing to paying for removal and reinstallation partway through the array's life. We check remaining roof life on the site walk and will recommend a ground mount instead when the roof does not justify it.
---
## Headquarter Honda: 127 kW Rooftop Solar for a Car Dealership in Clermont, Florida
Source: https://www.owsolar.com/projects/headquarter-honda-127kw-rooftop-solar
Topic: solar for car dealerships Florida
Last updated: 2026-07-30
127 kW of rooftop solar on a Honda dealership in Clermont, Florida: showroom cooling, service bays, manufacturer image standards, and an honest note about the lot lighting solar does not touch.
The 127 kW rooftop array OneWorld Solar built at Headquarter Honda in Clermont
is a straightforward example of **solar for car dealerships** in **Florida**. It
is also a good place to be specific about what an array on a dealership does and
what it does not do, because this is a sector where the load profile splits
neatly into the part solar reaches and the part it does not.
Dealerships are among the better commercial candidates we work with. OneWorld
Solar has built more than 1 MW across the Woody Folsom Chevrolet, Ford and
Chrysler Dodge stores in Georgia, and the pattern repeats: a large, predictable
daytime load under a simple roof.
## The dealership load profile
Three things drive a dealership's daytime consumption. The showroom is a glass
building in the Florida sun, so cooling it is a substantial and continuous load
during exactly the hours an array produces. The service department runs
compressors, lifts, ventilation and equipment through the working day. The parts
and back-office areas add a steady baseline.
Then there is the part solar does not address. Lot lighting runs after dark. Those
kilowatt-hours are bought from the utility regardless of how large the array is,
unless storage is added and sized for it. A proposal that shows an array wiping
out a dealership bill that includes heavy night-time lighting is not describing
how solar works.
## What we built
The array was designed around the roof and around the wind. Florida sites are
engineered to high design wind speeds, and on a roof mount that resolves into
attachment spacing, rail spans and the capacity of the structure underneath.
That cost shows up in labor and hardware rather than in the module count, which
is why comparing dealership quotes purely on price per watt across states is
misleading.
Franchised dealerships operate under facility image programs that govern how the
building looks, particularly the customer-facing elevation. A flat-roof array set
back from the parapet is rarely an issue, but raise it with the manufacturer
before the drawings are stamped. Approval late in a project is a redesign, not a
formality.
## The results
{/* INTERNAL — not rendered. Verified production and bill-savings data for Headquarter Honda have not been released for publication. The capacity, mounting type and site shown here come from the previous OneWorld Solar website and need to be confirmed with Doug before this page is published. Request current figures from OneWorld Solar before quoting anything. */}
OneWorld Solar has not published production or bill-savings figures for this installation. The scope described above is what the company confirms; anything beyond it should come from OneWorld Solar directly.
What we will state is the scope and the reasoning: a 127 kW roof mount on a
dealership whose consumption is concentrated in the hours the array produces,
engineered for a Florida wind zone, with the night-time lot lighting left
honestly outside the scope of what generation alone can fix.
## Next steps for dealer principals
- The sector case, including our Woody Folsom work, is set out in
[solar for car dealerships](/industries/automotive).
- For the numbers behind the decision, read
[solar payback period for car dealerships](/insights/solar-payback-car-dealerships).
- State-specific permitting and utility context is in
[commercial solar installation in Florida](/commercial-solar-installation-florida).
- Net cost depends heavily on the
[30% commercial solar tax credit](/incentives/federal-solar-tax-credit), and if
the after-dark load is the problem, the answer is
[commercial battery storage installation](/services/battery-storage) rather
than more panels.
### Frequently asked questions
**Why are car dealerships good candidates for solar?**
Because the load is large, daytime and predictable. A dealership cools a glass-walled showroom through the hottest part of the day, runs compressors, lifts and ventilation in the service department, and does most of that during the hours an array is producing. The buildings also tend to have simple, uncluttered roofs, which makes a rooftop array cheaper to design and build than on a typical industrial site.
**Does solar cover a dealership's lot lighting?**
Not directly, and it is worth saying so plainly. Lot lighting runs after dark, when the array produces nothing, so those kilowatt-hours are still bought from the utility unless storage is added. Solar reduces the daytime energy a dealership buys. Any proposal that implies an array will cover a night-time load without storage is describing something other than how solar works.
**Will the manufacturer's facility image program allow rooftop solar?**
Usually, but check before the design is fixed. Manufacturer image programs govern how a dealership looks, particularly anything visible from the road or affecting the customer-facing elevation. A flat-roof array set back from the parapet is rarely contentious. The risk is not refusal, it is discovering a requirement after drawings are stamped and equipment is ordered.
**How does Florida wind loading affect a dealership rooftop array?**
It drives the attachment design. Florida sites are engineered to high design wind speeds, so the array is checked from the modules and clamps back through the rails to the attachments and the building structure. On a dealership this often means more attachment points and closer rail spacing than the same array would need further inland, which shows up in the installed cost rather than in the equipment list.
---
## Orlando Utilities Commission: 32 kW Solar Canopy Installation in Florida
Source: https://www.owsolar.com/projects/orlando-utilities-commission-32kw-solar-canopy
Topic: solar canopy installation Florida
Last updated: 2026-07-30
A 32 kW solar canopy for Orlando Utilities Commission, the utility that writes the interconnection standard we had to build to. Also: what a canopy does that a roof mount cannot.
The 32 kW **solar canopy installation** OneWorld Solar built in **Florida** for
Orlando Utilities Commission is a small system with an outsized credential
attached to it. OUC is a municipal utility. It writes the interconnection
standard that every solar contractor in its territory has to satisfy, and it
enforces it. When that organization selects a contractor to build on its own
property, the review is being conducted by the people who set the rules.
The system itself is a canopy rather than a roof mount, and that choice is worth
explaining, because canopies are the structure buyers most often ask about and
most often misprice.
## What a canopy does that a roof cannot
A rooftop array uses a structure that already exists. A canopy is a new building
whose purpose happens to be holding modules in the air. That gives you three
things a roof mount cannot:
- **Shade and covered parking.** In central Florida that is a real amenity, not
a side effect.
- **Generation on land that was producing nothing.** A parking lot is otherwise
dead area on the site plan.
- **A host structure for other equipment.** Lighting is the obvious one. EV
charging is the more valuable one, because the canopy brings conduit and a
service into the middle of a parking area, which is normally the expensive
part of installing chargers.
It also solves the case where the roof is simply not available: too old, too
weak, or covered by a warranty whose holder will not accept penetrations.
## Why canopies cost more per watt
The modules on a canopy cost the same as the modules on a roof. Everything
holding them up does not. A canopy needs foundations sized for uplift and
overturning, columns, beams, a deck, drainage, corrosion protection and a
finish that will still look acceptable in fifteen years in a public parking
area. In a Florida wind zone all of that is engineered for the site's design
wind speed with vehicles and people underneath.
That is why a canopy quoted honestly will come in well above a roof mount of the
same capacity. If a proposal shows a canopy priced close to a rooftop system,
the structure has probably been under-specified.
If the only goal is the lowest cost per kilowatt-hour, a roof or ground mount
will usually beat a canopy. Canopies earn their premium when you also want the
shade, the parking, the visibility or the EV-charging structure. Decide which of
those you are buying before you compare prices.
## The results
The utility's own renewable energy manager described the work this way:
> They provided personalized attention and diligent support throughout the solar
> installation process, with excellent industry knowledge.
>
> — **Jennifer Szaro**, Renewable Energy Manager, Orlando Utilities Commission
{/* INTERNAL — not rendered. Verified output and performance data for this canopy have not been released for publication, and the capacity and structure type shown here come from the previous OneWorld Solar website. Confirm the details with Doug and request current data from OneWorld Solar before quoting any figure. */}
OneWorld Solar has not published production or bill-savings figures for this installation. The scope described above is what the company confirms; anything beyond it should come from OneWorld Solar directly.
## Where to go from here
- Other systems across our portfolio are collected in
[commercial solar projects](/projects).
- The utility and permitting landscape is covered in
[commercial solar installation in Florida](/commercial-solar-installation-florida).
- Canopies, roof mounts and ground mounts are all delivered under the same
[commercial solar EPC contract](/services/commercial-solar-epc).
- Before comparing structures on price, check what the
[30% commercial solar tax credit](/incentives/federal-solar-tax-credit) does to
net cost, since it applies to the installed system rather than the modules
alone.
### Frequently asked questions
**Why does a solar canopy cost more per watt than a roof mount?**
Because you are buying a building as well as an array. A roof mount attaches to a structure that already exists and already carries its own load. A canopy needs foundations, columns, beams, a deck, drainage, corrosion protection and often lighting, all engineered to hold panels overhead while vehicles and people pass underneath. The modules are the same. Everything holding them up is new.
**What can a solar canopy do that a rooftop array cannot?**
It creates covered parking, it puts generation on land that was otherwise producing nothing, and it gives you a structure to hang other equipment on, most usefully EV charging. It also keeps the array off a roof whose age, warranty or structural capacity rules out a roof mount. On a site where the roof is unsuitable but the parking lot is large, the canopy is often the only option.
**Is a solar canopy a good host structure for EV charging?**
It is one of the better ones, because the canopy already brings a conduit path and an electrical service to the middle of a parking area, which is normally the expensive part of an EV charger installation. Whether the array itself powers the chargers is a separate design question and usually it does not directly; the value is the shared infrastructure and the covered parking bay.
**Why does it matter that a municipal utility hired a solar contractor?**
Because the utility writes and enforces the interconnection standard the contractor has to meet. When the organization that reviews everyone else's applications selects a contractor to build on its own property, the work is being judged by the people who set the rules. It is a narrower and more informed review than a typical commercial customer can run.
---
## Tampa Electric Manatee Viewing Center: 32 kW Pole Mount Solar in Florida
Source: https://www.owsolar.com/projects/teco-manatee-viewing-center-32kw-solar
Topic: pole mount solar installation Florida
Last updated: 2026-07-30
A 32 kW pole top array at a public visitor center on a protected stretch of the Tampa Bay shoreline, where roof and ground area were both constrained.
The 32 kW **pole mount solar installation** in **Florida** that OneWorld Solar
built for the Tampa Electric Manatee Viewing Center is small, public and sited
somewhere that made both of the usual mounting choices awkward. It is a useful
example of the third option, and of what changes when the customer's own
visitors are standing next to the array.
A visitor center is not a warehouse. The array is part of what the public sees,
so appearance, sightlines and safety around it are design inputs rather than
afterthoughts, and the site itself sits on a protected stretch of the Tampa Bay
shoreline where the environment sets the terms.
## Why a pole top array here
Roof mounts need suitable roof. Ground mounts need open, disturbable land. When
neither is available, the pole top array is what remains: the modules go up on a
small number of foundations, and the ground underneath stays as it was.
That property is exactly what a sensitive coastal site rewards. On a protected
shoreline the constraints that govern are ground disturbance, access routes,
vegetation, stormwater and timing around protected species. Those are set by
permits, not by the construction schedule. A mounting method whose entire
footprint is a handful of piers gives the permitting case far less to object to
than an array covering an acre.
## What we built
The engineering focus on a pole mount is unusual. Instead of spreading wind load
across dozens of roof attachments, the whole array delivers its load into one
structure and one footing, so overturning and uplift at that single point govern
the design. Soil conditions matter more here than on any other mounting type,
because you cannot fix a bad geotechnical assumption by adding clamps.
At 32 kW, the fixed costs of design, permitting, interconnection and
mobilization weigh more per kilowatt than they do on a megawatt job. If the goal
is the lowest cost per kilowatt-hour, this is not the shape of project that
delivers it. Systems like this get built for visibility, education and
commitment, and they should be justified on that basis.
## The results
{/* INTERNAL — not rendered. No verified production or savings data has been released for this installation. The capacity, mounting type and the exact site shown on this page come from the previous OneWorld Solar website and need to be confirmed with Doug before publication. Request current data from OneWorld Solar before quoting any figure. */}
OneWorld Solar has not published production or bill-savings figures for this installation. The scope described above is what the company confirms; anything beyond it should come from OneWorld Solar directly.
What the project demonstrates is a method: a mounting approach chosen because of
the site's environmental constraints rather than because of what is cheapest per
watt, delivered on a property that stays open to the public.
## Related work and next steps
- Other installations of every mounting type are collected in
[commercial solar projects](/projects).
- For permitting, wind loading and utility context, see
[commercial solar installation in Florida](/commercial-solar-installation-florida).
- Roof, ground, canopy and pole top systems are all delivered under one
[commercial solar EPC contract](/services/commercial-solar-epc).
- If a project has to justify itself on economics rather than visibility, start
with [commercial solar incentives](/incentives), which move the numbers more
than array size does at this scale.
### Frequently asked questions
**When is a pole mount the right choice instead of a roof or ground mount?**
When roof area and open ground are both constrained or unavailable. A pole top array puts the modules above grade on a small number of foundations, so the disturbed footprint is a few pier locations rather than a whole field, and the land underneath stays usable or undisturbed. It is also the answer on a site where the roof cannot take the load or its warranty rules out penetrations.
**What is different about building on an environmentally sensitive coastal site?**
The permitting and the working method matter more than the equipment. Ground disturbance, access routes, vegetation clearance, stormwater and the timing of work around protected species are all constraints set by the permits rather than by the schedule. The practical consequence is that the design minimizes disturbed area, which is exactly what a pole mount is good at.
**Does a small solar array on a public building make financial sense?**
Not usually on scale alone. A 32 kW system will not transform a utility bill, and at that size the fixed costs of design, permitting, interconnection and mobilization carry more weight per kilowatt than they do on a large project. What justifies it is a different objective: demonstrating the technology to the public, supporting an education program or meeting an organizational commitment.
**How does a pole top array stand up to Florida wind?**
Through the foundation and the pole rather than through many attachment points. A pole mount concentrates the entire wind load of the array into one structure and one footing, so the engineering focuses on overturning and uplift at that single point. That makes the geotechnical assumptions unusually important; getting the soil conditions wrong on a pole mount is not recoverable with extra hardware.
---
## Homewood Suites by Hilton: 23 kW Hotel Solar Installation in Savannah, Georgia
Source: https://www.owsolar.com/projects/homewood-suites-hilton-23kw-solar
Topic: hotel solar installation Georgia
Last updated: 2026-07-30
A 23 kW roof mount array on a franchised hotel in Savannah: brand standards, franchisor approval, a 24/7 load, and an honest look at where the economics come from at this size.
The 23 kW **hotel solar installation** in **Georgia** that OneWorld Solar built
at the Homewood Suites by Hilton in Savannah is a small system, and the useful
part of the story is why a small system was the right answer rather than a
compromise.
Hotels are good hosts for solar in the Southeast. The load runs continuously,
the summer cooling peak lands squarely on the sunniest hours, and the operator
holds the building for the long term. What a mid-size franchised hotel does not
have is a large roof. Once you deduct the mechanical equipment, the setbacks,
the fire access pathways and the areas the structure cannot support, the usable
roof on a building like this is a fraction of its footprint.
## The franchise question
A branded hotel is not simply a building its owner controls. It operates under a
license that governs appearance and maintenance standards, which means anything
touching the envelope or visible from the street may need the brand's review.
The array itself is rarely the obstacle. The problem is timing: raising it with
the franchisor after the drawings are stamped and the equipment is ordered turns
a routine approval into a redesign.
Our advice on any franchised property is to open that conversation before the
design is fixed, and to treat the brand's facility standards as a design input
alongside the wind load and the roof warranty.
## What we built
The array was designed around what the roof could actually give. That sequence
matters: the capacity is an output of the roof survey, the structural review and
the roof warranty position, not a target chosen first and then squeezed on.
Savannah's coastal location adds wind loading and some salt exposure to the
attachment and hardware specification.
Be honest about small commercial systems. Design, permitting, interconnection
and mobilization are largely fixed costs, so spreading them over 23 kW gives a
higher cost per watt than spreading them over 500 kW. What usually makes a
system this size work is the incentive stack rather than economies of scale, and
no incentive should be assumed until the owner's own advisors confirm it.
## The results
{/* INTERNAL — not rendered. Verified production and utility-bill data for this hotel have not been released for publication. The capacity, mounting type and site shown here come from the previous OneWorld Solar website and need confirming with Doug before this page goes live. Request current figures from OneWorld Solar before quoting anything. */}
OneWorld Solar has not published production or bill-savings figures for this installation. The scope described above is what the company confirms; anything beyond it should come from OneWorld Solar directly.
The honest summary is that this project is a reference for a class of building
rather than a savings claim: a mid-size franchised hotel, a roof with limited
usable area, a brand approval to work through, and a system sized to fit all
three.
## If you own or operate a hotel
- The full picture for the sector is in
[solar for hotels and resorts](/industries/hospitality).
- For a much larger example, see our
[800 kW resort solar project in St. Maarten](/projects/westin-dawn-beach-resort-800kw-solar).
- Local utility, permitting and net metering context is in
[commercial solar installation in Georgia](/commercial-solar-installation-georgia).
- Because scale is not doing the work at this size, read
[Section 179 solar depreciation](/incentives/section-179-solar) and get the
design and build handled under one
[commercial solar EPC contract](/services/commercial-solar-epc).
### Frequently asked questions
**Does a franchisor have to approve solar on a branded hotel?**
Usually yes, in some form. A franchised hotel operates under a license that governs how the property looks and how it is maintained, so anything visible from the street or anything that touches the building envelope tends to require review. The practical advice is to raise the project with the brand early. Approval is normally achievable, but finding out about a requirement after the drawings are stamped is expensive.
**Why does a hotel suit solar even though it runs all night?**
Because the daytime portion of the load is still large and continuous. Laundry, kitchen equipment, elevators, common-area lighting and above all cooling run hard through the middle of the day in the Georgia summer, which is exactly when the array produces. Solar does not address the overnight load, and no honest proposal should imply that it does.
**Is a 23 kW system worth installing on a commercial building?**
It can be, but the case is different from a large system. At this size the fixed costs of design, permitting, interconnection and mobilization are spread across fewer kilowatts, so the cost per watt is higher than on a large array. What tends to make it work is the incentive stack combined with a roof that only had room for a modest system in the first place.
**What limits how much solar fits on a hotel roof?**
Usually the roof itself rather than the budget. Hotel roofs carry substantial mechanical equipment, they have setbacks and fire access pathways, they are often split across several levels and planes, and their structural capacity and warranty status both have to be checked. Once all of that is deducted, the usable area on a mid-size hotel is frequently far smaller than the building footprint suggests.
---
## Coastal Carolina University: 15 kW Commercial Solar South Carolina Case Study
Source: https://www.owsolar.com/projects/coastal-carolina-university-15kw-solar
Topic: commercial solar South Carolina case study
Last updated: 2026-07-30
A 15 kW demonstration-scale roof mount array at Coastal Carolina University, engineered under a Professional Engineer licensed in South Carolina, and an honest account of why small campus systems are worth building.
The 15 kW roof mount array at Coastal Carolina University in Conway is the
smallest **commercial solar South Carolina case study** in our portfolio, and it
is here for a reason. Small campus systems get built constantly, and the
argument for them is not the one a savings calculator makes.
Fifteen kilowatts will not change a university's utility bill. Anyone who tells
a facilities director otherwise is selling. What a system this size does is put
a real, monitored, code-compliant photovoltaic installation on a campus where
students, faculty and the facilities team can all reach it.
## Why small campus systems still get built
Three reasons come up again and again, and none of them is payback.
**Teaching.** A working array produces live data from local weather on local
equipment. Engineering, environmental science and trades programs use that in
coursework in a way that a textbook example cannot match.
**Visibility.** An institution that has committed publicly to sustainability
needs something on the ground. A visible array is evidence, and it is a great
deal cheaper than a large system that only appears in a report.
**A pilot before a larger commitment.** Facilities teams learn what monitoring,
maintenance, roof access and inverter servicing actually involve, at a scale
where a mistake costs very little. Several of the larger institutional projects
we have quoted started as somebody's small array.
## What we built, and who engineered it
Our VP of Engineering is a Professional Engineer licensed in
South Carolina, along with North Carolina, Florida, Georgia, Virginia and Texas,
and a NABCEP board-certified photovoltaic system inspector. He has worked on
medium- and high-voltage interconnections of renewable generators since 1992.
For a public institution that has to defend an award, the qualifications behind
the stamp are part of what is being bought.
Public procurement also changes the order of work. The specification is
published first, bids are evaluated against it, and the award has to be
justifiable afterwards. That rewards contractors who can put complete
engineering and interconnection data on the table at bid stage, which is how we
structure a
[commercial solar EPC contract](/services/commercial-solar-epc) regardless of
system size.
Design, permitting, interconnection, mobilization and inspection are mostly
fixed costs. Spread across 15 kW they produce a higher cost per watt than they
would on a large array, and the payback follows. If the objective is purely
financial, build a bigger system or do not build one. If the objective is
teaching, visibility or experience, this size is exactly right.
## The results
{/* INTERNAL — not rendered. Verified production and performance data for the Coastal Carolina University array have not been released for publication. The capacity, mounting type and campus details on this page come from the previous OneWorld Solar website and must be confirmed with Doug before it goes live. Request current data from OneWorld Solar before quoting any figure. */}
OneWorld Solar has not published production or bill-savings figures for this installation. The scope described above is what the company confirms; anything beyond it should come from OneWorld Solar directly.
## Where to go next
- Systems at every scale are collected in
[commercial solar projects](/projects).
- State context, including utilities and interconnection, is in
[commercial solar installation in South Carolina](/commercial-solar-installation-south-carolina).
- For a larger campus example, see our
[102 kW college campus solar installation in Orlando](/projects/valencia-college-102kw-rooftop-solar).
- Before sizing anything, check which
[commercial solar incentives](/incentives) apply to your institution, because a
public or nonprofit entity's position differs from a taxable company's.
### Frequently asked questions
**Why would a university build a 15 kW solar array?**
Because the objective is rarely the utility bill at that size. A small campus array is usually built to be seen and used: it supports teaching in engineering and environmental programs, it demonstrates a commitment the institution has already made publicly, and it gives the facilities team operating experience with the technology before a larger commitment is considered.
**Does a small solar system have a good payback?**
Generally worse than a large one, and it is only fair to say so. Design, permitting, interconnection, mobilization and inspection are largely fixed costs, so spreading them across 15 kW gives a higher cost per watt than spreading them across 500 kW. Small systems are justified by their non-financial objectives, or by an incentive position that happens to close the gap.
**Who engineers OneWorld Solar projects in South Carolina?**
Our VP of Engineering is a Professional Engineer licensed in South Carolina as well as North Carolina, Florida, Georgia, Virginia and Texas, and a NABCEP board-certified photovoltaic system inspector. He has worked on medium- and high-voltage interconnections of renewable generators since 1992, which is what public institutional buyers usually want to see behind a stamped drawing set.
**How does public procurement affect a campus solar project?**
It fixes the scope before the price. A public institution publishes a specification, evaluates competing bids against it and must be able to justify the award, so the technical package has to be complete and defensible at bid stage. That favors contractors who can produce stamped engineering and interconnection data up front rather than developing the design after the contract is signed.
---
## A Donated 10 kW System: a Veteran-Owned Solar Company Giving Back
Source: https://www.owsolar.com/projects/wounded-warrior-10kw-solar-donation
Topic: veteran owned solar company giving back
Last updated: 2026-07-29
OneWorld Solar donated a 10 kW ground mount solar array to Mike Reynolds, who was seriously injured in Iraq by an IED, and his family.
OneWorld Solar is a **veteran-owned solar company**, and this is the one project
on the site that has nothing to do with a payback period. Mike Reynolds was
seriously injured in Iraq by an IED. The company donated a 10 kW ground mount
solar system to him and his family.
That is the whole of what we are going to say about the circumstances. Details of
Mr. Reynolds's service, his injuries and his family are his to share, not ours to
publish as marketing, and giving back is not something a company should be
narrating about itself at length.
## What was installed
A 10 kW ground mount array. In the context of a company whose largest single
installation is 1.267 MW, that is a very small system — about a hundredth of it.
It was built the way any of our arrays are built: engineered, permitted,
foundations set, fixed-tilt racking, interconnected and commissioned, by the same
crews who install our commercial ground mounts.
Ground mount was the right structure for the same reasons it usually is on a
small site: the array faces the way it should rather than the way the building
happens to face, the panels stay off a roof that will need replacing before they
do, and everything is reachable at ground level for the next twenty-five years.
## Why a solar company ends up doing this
Our CEO, who acquired the company in October 2017 and runs it today, is a
disabled U.S. Army combat engineer officer and a Gulf War veteran. His background
is on the [OneWorld Solar leadership page](/about). A disabled veteran-owned
business donating a system to a wounded soldier is not a campaign; it is one
decision, made once, by people with a direct line of sight to what an IED does to
a life.
There is also a fair amount we are not publishing. We have not put a date on the
installation, a town beyond Georgia, or any production figure for the array,
because none of that is documented well enough to state as fact and none of it
would tell you anything you need to know. The photographs on this page are the
ones taken at the time, at the resolution they were taken.
The rest of what we do is ordinary commercial work:
[commercial solar EPC contracts](/services/commercial-solar-epc) for businesses
that go on to claim the
[30% federal solar tax credit](/incentives/federal-solar-tax-credit), across
poultry farms, dealerships, factories and utility sites throughout
[commercial solar installation in Georgia](/commercial-solar-installation-georgia)
and the wider Southeast.
We publish this project because it happened, not because it sells anything.
### Frequently asked questions
**Why did OneWorld Solar donate a solar system?**
OneWorld Solar is a disabled veteran-owned company. Its CEO is a disabled U.S. Army combat engineer officer and a Gulf War veteran. Mike Reynolds was seriously injured in Iraq by an IED, and the company donated a 10 kW solar system to him and his family. There is no commercial arrangement behind it and nothing was asked for in return.
**Is OneWorld Solar a veteran-owned business?**
Yes. The company is disabled veteran-owned. Our CEO acquired OneWorld Sustainable in October 2017, when the business was out of business, and rebuilt it. He is a disabled U.S. Army combat engineer officer and a Gulf War veteran, and studied at Georgia Military Institute and Georgia Southern University before a career in telecommunications and video conferencing.
**What does a 10 kW ground mount solar array involve?**
A 10 kW array is a household-scale system, roughly a hundredth of the largest commercial installation we have built. On a ground mount it sits on driven or concrete foundations with fixed-tilt racking, positioned to face the sun properly rather than to follow a roof. Output depends entirely on the site, the orientation and the shading, so we do not publish a generic figure.
**Does OneWorld Solar install residential solar?**
Our work is commercial: large rooftop and ground mount arrays, battery storage, micro-grids and power factor correction for businesses, farms, dealerships, hotels and utilities. This 10 kW system was a donation rather than a line of business. If you are a homeowner, a local residential installer will serve you better than we would.
---
# Articles
## What Drives the Cost of a Commercial Microgrid
Source: https://www.owsolar.com/insights/commercial-microgrid-cost
Topic: commercial microgrid cost
Last updated: 2026-09-12
Nobody can quote a microgrid from a phone call, and anyone who does is quoting something else. Here are the four things that set the number, in the order they move it.
The honest answer to *what does a commercial microgrid cost* is that the question is missing its most important half. The same two words cover a system that keeps one control panel alive and a system that runs a distribution center through a three-day event. Those are not the same purchase, and no responsible number exists until somebody says which one you mean.
What can be described precisely is **what moves the number**, and in what order. If you understand that, you can scope your own project well enough to get comparable quotes, which is usually the real goal.
## The four things that set the price
### 1. How much load you island
This is the largest single lever, and it is a decision rather than a fact about your building.
Almost nobody needs their entire electrical service islanded. What they need is a defined subset — ventilation, refrigeration, life safety, a process line, the server room — carried through an interruption while the rest of the site waits for the utility.
The cost difference between those two scopes is not marginal. It is the difference between equipment sized for a few hundred kilowatts and equipment sized for your whole peak, and it cascades into every other item on this list.
### 2. How many hours you need
Storage cost scales close to linearly with runtime. A battery that carries your critical load for one hour and a battery that carries it for six are, roughly, a one-times and a six-times purchase for the energy portion.
This is why the [microgrid, generator or battery](/insights/microgrid-vs-generator-vs-battery) question matters before the budget question. Hours are cheap from a fuel tank and expensive from cells. Sites that need long runtime and cannot tolerate a transfer gap usually end up with both technologies, sized so that each does the part it is good at.
### 3. What your existing electrical system will accept
This is the item that most often surprises people, because it is invisible from the roof.
To island a subset of your loads, those loads have to be separable. In a building where the critical circuits are distributed across several panels — which is normal, because nobody wired the place anticipating this — separating them means new switchgear, new distribution, and conduit runs through an operating facility.
We have seen this work be a modest line item and we have seen it rival the cost of the generation equipment. Nobody can tell you which one you have without opening panels and looking.
### 4. The point of interconnection
Every foot of heavy AC conductor between your storage and the point of interconnection is cost and loss. So is a transformer the utility decides it wants. Where the equipment can sit relative to the existing service is a real cost driver, and it is why site layout comes up early in our conversations rather than late.
We will not give you a per-kilowatt rule of thumb for a microgrid. For a plain rooftop array a benchmark figure is a reasonable starting point, and we publish thinking about that in [commercial solar cost per kW in Georgia](/insights/commercial-solar-cost-per-kw-georgia). For an islanded system the ratio between generation cost and everything else varies so widely between sites that a rule of thumb is closer to a guess than a guide.
## How to scope yours before asking for prices
Four steps, none of which require a contractor.
**Write down what must stay running**, circuit by circuit if you can, and be ruthless about it. Most lists shrink by half on the second pass.
**Write down how long.** Minutes, hours or days. If the honest answer is "until the utility comes back", find out from your utility what their typical and worst restoration times have been in your area, because that is the number you are actually designing against.
**Find out whether those loads share panels** with things you do not care about. This single fact moves budgets more than any equipment choice.
**Pull twelve months of bills and, if you can get it, interval data.** This tells us whether there is a demand charge worth attacking, which decides whether the storage has a second job or only the one — the distinction covered in [when commercial battery storage pays off](/insights/commercial-battery-storage-payback).
With those four answers, a quote means something and quotes from different contractors can be compared.
## Where this fits with the rest of the project
A microgrid is usually not a standalone purchase. It is a solar project, a storage project and an electrical works project that happen to be procured together, which is why we handle it as a single [commercial solar EPC contract](/services/commercial-solar-epc) rather than as three vendors coordinating by email.
More on the design and islanding side is in [commercial microgrid installation](/services/micro-grids). If you want the four questions above worked through against your facility, [send us the bills and we will come back with a scope](/contact) before anyone talks about a price.
### Frequently asked questions
**How much does a commercial microgrid cost?**
There is no useful single figure, because the same phrase covers a system that backs up one panel and a system that carries an entire plant for days. The cost is set mainly by how much load you island, how many hours you need it to run, and what your existing switchgear will accept. Any number quoted before those three are known is a number for a different project, and it will change once someone visits the site.
**What is usually the most expensive part of a microgrid?**
Storage, in most commercial designs, because its cost scales directly with the hours of runtime you ask for. The second largest item is often not equipment at all but the electrical work needed to separate the loads you want to island from the loads you do not, which can mean new switchgear, new distribution and a great deal of conduit in an occupied building.
**Is a microgrid cheaper than a generator?**
For pure outage protection, no. A generator buys hours of runtime far more cheaply than batteries do. A microgrid becomes competitive when the same equipment is also reducing your utility bill on ordinary days, because then the investment is doing two jobs. If your tariff has no demand charge and no time-of-use spread, that second job does not exist and a generator is likely the better buy.
**Can a microgrid be built in phases?**
Often yes, and it is frequently the right approach. Solar first, storage later, islanding capability last is a common sequence. The important part is deciding at the design stage that later phases are coming, because the switchgear, conduit capacity and interconnection agreement chosen for phase one determine whether phase three is straightforward or a rebuild.
**Do incentives apply to microgrid costs?**
Parts of a microgrid have been eligible for federal incentives, and agricultural and rural sites may also be candidates for USDA REAP funding, but eligibility depends on how the project is scoped and on the rules in force when you apply. Treat any percentage in a proposal as something to confirm with your accountant and, for REAP, with your USDA Rural Development state coordinator before it enters a budget.
---
## Microgrid, Generator or Battery: What Actually Keeps a Site Running
Source: https://www.owsolar.com/insights/microgrid-vs-generator-vs-battery
Topic: microgrid vs generator
Last updated: 2026-09-01
Three different machines get sold against the same sentence — keep my site running. They fail differently, they cost differently, and only one of them earns anything on the days the grid behaves.
Three different machines get sold against the same sentence: *keep my site running*. A standby generator, a battery backup and a **microgrid** are not three brands of the same thing. They fail differently, they cost differently, and only one of them earns anything on the 360 days a year when the grid behaves perfectly.
The conversation almost always improves once we stop comparing products and start comparing three specific properties: how fast the thing picks up your load, how long it can hold it, and what it does for you when nothing is wrong.
## The three properties that decide it
### How fast it picks up
A standby generator has to crank, reach speed, stabilize and then accept load through a transfer switch. Several seconds is normal and entirely fine for lighting, most HVAC and most motors.
It is not fine for everything. Control boards drop out. Servers reboot. Some process equipment faults and needs a manual reset that takes far longer than the outage did. If any part of your operation behaves that way, the transfer gap is not a detail — it is the whole specification.
A battery inverter is already running and synchronized. It carries the load through a transfer measured in milliseconds, which most equipment never registers as an event at all.
### How long it can hold
This is where the ranking reverses.
A battery sized to shave a demand peak — which is how most commercial storage is sized, and for good reason, as covered in [when commercial battery storage pays off](/insights/commercial-battery-storage-payback) — holds a facility for minutes to a couple of hours. That is a design choice, not a limitation of the technology, but every additional hour of runtime costs real money and takes real space.
A generator holds for as long as you keep fuel in it. For a multi-day event, buying hours from a fuel tank is dramatically cheaper than buying them from cells.
### What it does when nothing is wrong
A generator does nothing. It sits there, it consumes maintenance and periodic test runs, and it depreciates. That is not a criticism — insurance is supposed to do nothing most of the time — but it belongs in the comparison.
A battery, on a tariff with a demand charge or a time-of-use spread, is working every single day. That is the asymmetry people miss: one of these assets has a job on ordinary Tuesdays.
## So what is a microgrid?
A microgrid is not a fourth kind of generator. It is the control layer that lets a defined part of your electrical system disconnect from the utility and run on whatever local sources you have — solar, storage, a generator, or all three — and then reconnect cleanly.
That disconnection is called islanding, and it is the part customers most often assume they already have.
A standard grid-tied array is required to shut down when the grid goes down, so it cannot energize conductors that a line crew believes are dead. A facility with a megawatt on the roof and no islanding capability goes just as dark as its neighbor. Finding this out during an outage is a bad afternoon; it is worth establishing before you need it.
## Where each one is the right answer
**A generator alone** is the right answer more often than a solar contractor is supposed to admit. If outages are your only concern, your loads tolerate a transfer gap, and your tariff has no demand charge worth attacking, then a generator is cheaper, simpler and well understood by every electrician in your county.
**A battery alone** suits the site whose real problem is the bill rather than reliability, with a short, sharp peak to shave and no load that must survive a long outage. The backup capability comes along as a bonus rather than as the justification.
**A microgrid** earns its complexity in two situations. The first is when the same capital has to do two jobs — protect the operation and work on the bill — because neither alone justifies the spend. The second is when part of your load genuinely cannot tolerate a transfer gap and also cannot be allowed to go down for a long event, which usually means solar plus storage plus a generator, coordinated.
### The load that decides it
In practice one load usually settles the design.
On a poultry operation it is ventilation. A full house without air movement is a mortality event measured in minutes, which is why [solar for poultry farms](/industries/poultry) so often turns into a resilience conversation partway through. On a hotel it is more often elevators, life safety and the property management system — see [solar for hotels and resorts](/industries/hospitality). In manufacturing it is whichever piece of the line is most expensive to restart.
Find that load, size around it, and the argument about product categories mostly resolves itself.
## How we approach it
We size from interval data rather than from nameplate figures, because the question is not how much power your site could theoretically draw but how much it actually draws, when, and for how long. That data also tells us whether there is a demand charge worth attacking, which decides whether storage has a second job or only the one.
If the answer is that you need a generator and nothing else, that is what the analysis will say. There is more detail on how we build the islanding side in [commercial microgrid installation](/services/micro-grids), and on the storage side in [commercial battery storage](/services/battery-storage).
If you want this worked through against your own facility, [send us twelve months of bills and interval data](/contact) and we will tell you which of the three you are actually looking for.
### Frequently asked questions
**What is the difference between a microgrid and a generator?**
A generator is a source of power that starts when the grid fails. A microgrid is a control system that can disconnect a defined part of your electrical system from the utility and run it on local sources, which may include solar, batteries and a generator together. The distinction that matters commercially is that a generator only earns its keep during an outage, while a microgrid built around solar and storage is also working on your bill on ordinary days.
**How fast does each option pick up the load?**
A battery inverter can carry the load without an interruption the equipment notices, because it is already synchronized and transfers in milliseconds. A standby generator typically needs several seconds to crank, come up to speed and accept load through a transfer switch. For most commercial loads several seconds is acceptable. For refrigeration control boards, servers and some process equipment it is not, and that difference alone often decides the design.
**Can a battery replace a generator for long outages?**
Usually not on its own. A battery sized to shave a demand peak carries a facility for minutes to a couple of hours, not days. Sizing one for a multi-day outage is possible but the cost scales with every hour of runtime you add, and at some point a fuel-burning generator is simply the cheaper way to buy hours. Many resilient sites end up with both, which is what a microgrid coordinates.
**Does solar work during a power outage?**
Not by itself. A standard grid-tied solar array is required to shut down when the grid goes down, so that it cannot energize lines that a utility crew believes are dead. Making solar useful in an outage requires equipment that can form its own grid and isolate from the utility, which is the islanding function a microgrid provides. Customers are often surprised by this, and it is worth knowing before an outage rather than during one.
**Do I need a microgrid or just a bigger generator?**
If outages are your only concern, your loads tolerate a few seconds of interruption, and your utility bill has no demand charge worth attacking, a generator is likely the cheaper and simpler answer, and we will say so. A microgrid earns its extra complexity when you also want the equipment working on your bill the rest of the year, or when part of your load cannot tolerate a transfer gap.
**What does islanding mean?**
Islanding is the deliberate disconnection of part of your electrical system from the utility so it can run as a self-contained island on local generation. It requires switchgear that can open the connection, sources that can establish voltage and frequency without the grid as a reference, and controls that manage the transition in both directions. Accidental islanding is a safety hazard, which is why the equipment and its commissioning are regulated.
---
## USDA REAP and Solar Thermal: Which Solar Does Your Operation Need?
Source: https://www.owsolar.com/insights/usda-reap-solar-thermal
Topic: usda solar thermal
Last updated: 2026-09-01
Two different technologies get called solar, they solve different problems, and picking the wrong one is an expensive way to find out. What solar thermal is good at, what photovoltaics is good at, and how REAP treats them.
Two quite different technologies get called solar, and the USDA does not much care which one you pick as long as it is a renewable energy system. That leaves the choice to you, and picking the wrong one is an expensive way to learn the difference.
This comes up often enough among **USDA solar thermal** searches that it is worth setting out plainly: what each technology is good at, which kind of operation each suits, and how to check what a REAP application will actually accept.
## The difference, in one paragraph
A solar thermal collector heats a fluid directly with sunlight. You get heat, where the collector is, when the sun is out. A photovoltaic panel turns sunlight into electricity, which you can then use for anything at all — including making heat, less efficiently than a thermal collector would have.
Thermal captures more of the available energy. Photovoltaics captures less of it but produces something far more useful, because electricity moves, stores and does every job on the site rather than one.
That trade is the whole decision.
## Which one your operation needs
The test is not about technology preference. It is about which line of your bill is large.
**Solar thermal makes sense** where you have a substantial, predictable, year-round demand for heat at a modest temperature, and where that demand happens near where you could put collectors. A dairy washing down equipment twice a day is the textbook case. So is a processing operation with steady hot water draw, or a facility heating a large volume of water for a purpose that runs regardless of season.
**Photovoltaics makes sense** where your cost is electrical. Ventilation, lighting, refrigeration, motors, compressors, controls. It also makes sense where your demand is variable or seasonal, because electricity can be exported or offset against consumption rather than wasted.
It is not fashion. It is that the loads which dominate an agricultural electric bill are usually electrical rather than thermal. On a poultry operation, ventilation runs year-round and peaks in the months a Southeast array produces most — the reasoning is set out in [solar for poultry farms](/industries/poultry). Heat matters on those farms, but it is generally not the line item that hurts.
## Reading your own bill to decide
You do not need a consultant for the first pass. You need two numbers.
**What you spend on electricity in a year**, from twelve months of utility bills. Take the total, not one month, because seasonality on an agricultural site is severe enough that any single bill will mislead you.
**What you spend on the fuel that makes your heat** — propane, natural gas, diesel, or the portion of your electric bill driven by resistance heating and water heating. This one is harder because the invoices come from a different supplier and rarely get totalled.
Put them side by side. If the electricity number is several times the heat number, you have an electrical problem and a thermal system will disappoint you no matter how efficiently it collects. If the two are comparable, or if heat is the larger of the two, solar thermal deserves a serious look and you should talk to someone who installs it.
The reason this simple test works is that neither technology can help with a cost you do not have. A collector cannot reduce a ventilation bill, and an array sized to your electric load will not meaningfully change what you spend on propane.
## How REAP treats it
The Rural Energy for America Program funds renewable energy systems and energy efficiency improvements. It is written around a category rather than around one technology, and solar thermal has historically sat inside that category alongside photovoltaics, wind, and several others.
Two cautions, both of which apply to any statement anyone makes about REAP, including this one.
**The rules change.** Percentage caps, maximum awards and matching requirements have all moved more than once. Whatever was true for a previous funding round may not be true for yours.
**Scope decides eligibility as much as technology does.** How the project is described, what is bundled into it and when work begins all affect the outcome. Starting construction before an award is made is the single most common way applicants disqualify their own costs.
The person who can answer both is your USDA Rural Development state energy coordinator, and that conversation should happen before a budget exists rather than after. There is more on the application itself in our [USDA REAP grant guide](/incentives/usda-reap-grant) and in the [REAP application walkthrough](/insights/usda-reap-grant-application-guide).
## What we do and do not build
We are a photovoltaic and battery storage contractor. We do not install solar thermal, and we are not going to pretend that the technology we sell is the answer to a heat problem.
If your operation's cost is genuinely thermal, the right move is a contractor who does that work, and a REAP application built around it. If your cost is electrical — which, on most of the farms and plants we see across [Georgia](/commercial-solar-installation-georgia) and the Carolinas, it is — then photovoltaics is the direct answer and we are glad to look at it.
The way to find out is to read your own bills. If you would rather not, [send us twelve months of them](/contact) and we will tell you which of the two you are looking at, including when the answer is the one we do not sell.
### Frequently asked questions
**Does USDA REAP cover solar thermal?**
REAP funds renewable energy systems as a category rather than photovoltaics specifically, and solar thermal has historically fallen inside that category. Eligibility for any given project still depends on the rules in force for the funding round you apply to and on how your system is scoped. Confirm it with your USDA Rural Development state energy coordinator before you build the assumption into a budget, because these rules have changed more than once.
**What is the difference between solar thermal and solar panels?**
Solar thermal collectors heat a fluid directly using sunlight, and you use that heat. Photovoltaic panels convert sunlight into electricity, which you can then use for anything, including making heat. Thermal is more efficient at capturing energy as heat, but the heat is only useful where you produce it and only when you need it. Electricity is less efficient to produce and far more flexible to use.
**Which one suits a farm better?**
It depends entirely on whether your bill is dominated by heat or by electricity. An operation with a large, steady hot water demand, such as a dairy washing down twice a day, is a genuine solar thermal candidate. A poultry operation whose load is ventilation, lighting and heating controls is an electrical problem, and photovoltaics addresses it directly.
**Can one REAP application cover both?**
Applications are assessed on the project you describe, so the question is really whether a combined project scores well and whether it is straightforward to document. In practice most applicants are better served by identifying the single technology that addresses the largest share of their energy cost and building a clean application around it. Your USDA state coordinator can advise on how a combined scope would be treated.
**Does OneWorld Solar install solar thermal?**
No. We are a photovoltaic and battery storage EPC, and solar thermal is a different trade with different equipment and different service requirements. We mention it here because REAP applicants ask, and because sending someone toward the technology that actually fits their bill is more useful than selling them ours. If thermal is what your operation needs, we will say so.
---
## Battery Storage for Businesses: When Does It Pay Off?
Source: https://www.owsolar.com/insights/commercial-battery-storage-payback
Topic: commercial battery storage payback
Last updated: 2026-07-29
A battery only pays for itself if your utility bill is paying for something a battery can change. Here is how to read your own tariff for demand charges, ratchets and time-of-use pricing before anyone quotes you a system.
A commercial battery is a machine for moving energy in time. That is all it does. So **commercial battery storage payback** is a simple question with an unglamorous answer: it pays off when your utility bill is charging you for something that moving energy in time can change, and it does not pay off when your bill is not.
The fastest way to end a storage conversation honestly is to read the customer's rate schedule. Most of the decision is on that document. If there is no demand charge and no time-of-use spread, the calculation is over before it starts, and no amount of enthusiasm about resilience turns that into a return.
This article covers the three things a battery can be paid for, how to find out from your own bill whether any of them apply to you, why a battery sized for demand shaving is usually much smaller than people assume, and when the answer is simply no.
## What can a commercial battery actually be paid for?
Three things, and only three. It is worth separating them clearly because two of them show up in a payback calculation and one of them does not.
**Demand-charge reduction.** Your bill likely contains a charge based not on how much energy you used but on your highest rate of draw during the month, measured over a short interval. A battery discharges into those peaks so the meter never sees them. This is the workhorse of commercial storage economics.
**Energy arbitrage on a time-of-use tariff.** If your utility charges more per kWh at some hours than others, a battery can charge when energy is cheap and discharge when it is expensive. The value is the spread multiplied by the energy moved, minus round-trip losses. On a flat tariff this value is exactly zero.
**Backup and resilience.** If the grid goes down, a battery, or a battery configured as part of a [commercial microgrid](/services/micro-grids), keeps chosen loads alive. This is real value. It is not payback value. It is insurance, and it should sit in its own column of the business case, sized against what an outage costs you per hour rather than against a savings rate.
| What your bill is charging you for | Does a battery help? |
| --- | --- |
| Demand charge (kW or kVA, measured peak) | Yes — this is the primary payback driver |
| Time-of-use energy rates with a real price spread | Yes — arbitrage, limited by spread and round-trip efficiency |
| Flat energy rate, all hours the same | No |
| Fixed monthly customer charge | No |
| Power factor penalty | No — see [power factor correction services](/services/power-factor-correction) |
| Outage risk on a critical load | Yes, but as insurance, not as payback |
## How do you read your own utility bill to find out?
Pull twelve months of bills and your current rate schedule, then look for three things.
**Find the demand charge line.** It will be expressed in dollars per kW (sometimes per kVA) and multiplied by a measured peak, not by your kWh total. Add up twelve months of it. That annual number is the ceiling on what demand shaving can save you, and in our experience it surprises people. On some commercial accounts it is a small line. On others it is a third of the bill.
**Look for the ratchet clause.** Many commercial tariffs set your billed demand at a percentage of your highest peak over a defined lookback period (verify the ratchet percentage and lookback window on your own rate schedule). Where a ratchet applies, one bad measurement interval on one hot afternoon can inflate your bills for months afterward. That changes the value of avoiding a single peak dramatically.
**Check whether the tariff is time-of-use.** If energy is priced differently by hour or by season, note the spread between the highest and lowest rate. If every kWh costs the same regardless of when you use it, cross arbitrage off the list.
Solar power generates during daylight hours and will not have an impact on evening usage. Utilities may set a customer's peak demand during times when solar is not effective, or during a cloudy or rainy day. While solar power will reduce your overall kWh usage, it cannot be expected to mitigate your peak demand. That is not a caveat we add reluctantly. It is the exact reason storage exists, and it is why we look at the demand side of the bill before recommending either.
## Why is a demand-shaving battery smaller than people expect?
Because demand charges are billed on a measured interval, not on your daily energy total. The battery does not have to run your building. It has to cover the height and the duration of your peaks.
A plant with a large annual consumption may have peaks that last a few minutes each: a compressor bank starting, a chiller cycling on, a shift change where several large loads coincide. Sizing that battery is a question of kilowatts for a short window, not kilowatt-hours for a day. Two facilities with identical monthly kWh totals can need very differently sized systems, or one might need none at all.
This is why we ask for interval data rather than monthly summaries. A monthly bill tells you what you were charged. Interval data tells you *when* the peak happened, how tall it was, how long it lasted, and how often it repeats. Without that, a storage proposal is a guess. We will not size a system from a monthly kWh figure and an average rate.
## When is a battery not worth it?
Say it plainly: when the bill has nothing for it to earn.
If your tariff has no demand charge, no meaningful time-of-use spread, and your operation can tolerate an outage, a battery will not pay for itself and we will tell you that rather than quote one. There are also sites where the real problem is a power factor penalty, an oversized service, or simply the wrong rate schedule. Correcting any of those can be far cheaper than storage, and it may be worth doing first regardless.
There is a second category worth naming: sites where a battery would pay back, but only just, and where the payback rests entirely on a tariff structure that the utility could revise. Tariffs change, and neither we nor you control that. Where a case is marginal, we would rather you knew it was marginal.
## When is resilience the reason, regardless of payback?
Some facilities cannot go dark. Cold storage with product on the floor. A process line where an unplanned stop means scrapping work in progress and hours of restart. A site whose customers are contractually promised uptime.
For those buildings the question is not payback at all. It is: what does an hour of downtime cost, how many hours per year are you exposed, and what is it worth to remove that exposure? Answer that honestly and the storage decision usually answers itself, with any demand-charge savings treated as a partial offset rather than the justification. Where whole-site islanding is the requirement rather than load-specific backup, that is microgrid territory.
## What is the storage at Samsonite and TUMI doing?
Our largest single site pairs a 1.267 MW rooftop array with 55,000 lb of batteries, using CATL cells in OneWorld Solar BatteryCube® cabinets, at the Samsonite and TUMI facility in Vidalia, Georgia. The full build is documented in the [Samsonite and TUMI 1.267 MW rooftop solar and battery case study](/projects/samsonite-tumi-1267kw-rooftop-solar-battery).
What that storage is doing is the two jobs described above. It sits between the facility's load and the utility meter so the billed peak is shaped by the battery rather than by the raw draw of the plant, and it stands behind loads the site would rather not lose. The solar array cuts energy consumption across daylight hours; the batteries address the part of the bill that solar alone cannot reach. That division of labor is the entire argument for pairing them, and it applies well beyond this one building. (Specific measured demand reduction and usable capacity figures for this site should be confirmed against monitoring data before publication.)
If you want to see how the equipment is put together, the [BatteryCube commercial battery energy storage system](/batterycube) page has the product detail, [commercial battery storage installation](/services/battery-storage) covers our scope of work, and [solar for manufacturing facilities](/industries/manufacturing) covers the load profiles we see most often. On the incentive side, storage has been eligible for the [federal solar investment tax credit](/incentives/federal-solar-tax-credit) under current rules, subject to conditions your accountant should verify.
Send us twelve months of bills and interval data if your utility will release it. If the numbers are not there, that is the answer, and it costs you nothing to find out.
### Frequently asked questions
**How do you calculate commercial battery storage payback?**
You calculate it from the bill lines a battery can actually change, which in practice means the demand charge and any time-of-use energy price spread. Add up what those cost you across twelve months, estimate how much of that a battery of a given size can shave, and divide the installed cost after incentives by the annual saving. Backup value is real but belongs in a separate column, because it is insurance rather than a cash return.
**Will solar alone reduce my peak demand charges?**
It cannot be relied on to. Solar generates during daylight hours only, and utilities may set a customer's billed peak during times when solar is not effective, including cloudy days, rainy days and after dark. Solar will reduce your overall kWh consumption, but it cannot be expected to mitigate peak demand on its own. That gap between energy savings and demand savings is precisely the gap that battery storage exists to fill.
**What size battery do I need to reduce demand charges?**
Usually smaller than people expect. Demand charges are billed on a short measured interval, so a battery only has to cover the height and duration of your peaks, not your whole daily load. A facility that draws a large amount of energy overall may have peaks that last minutes. Sizing comes from interval data, not from your monthly kWh total, which is why we ask for interval data before quoting.
**When is commercial battery storage not worth it?**
When your tariff has no demand charge, no meaningful time-of-use price spread and you have no load that cannot go dark. If all three are true, a battery has nothing to earn and we will tell you so. There are also sites where power factor correction or a change of rate schedule fixes the problem far more cheaply than storage. Fixing the bill is the goal, not selling equipment.
**What is a demand ratchet and why does it matter for storage?**
A ratchet clause sets your billed demand for future months at a percentage of your highest recent peak, so a single bad interval can raise your bills for months afterward. Where a ratchet applies, avoiding one peak event is worth much more than the arithmetic on a single month's bill suggests, which strengthens the case for storage. Check your rate schedule for the ratchet language before modeling any savings.
**Does battery storage qualify for the federal investment tax credit?**
Standalone and solar-paired commercial storage has been eligible under current federal rules, subject to conditions on size, ownership and placed-in-service timing. Because eligibility rules and percentages change, treat any figure in a proposal as needing verification. OneWorld Solar prepares the documentation your accountant needs, but the credit is claimed on your return and must be validated by a Certified Tax Accountant.
---
## How Much Does Commercial Solar Cost per kW in Georgia?
Source: https://www.owsolar.com/insights/commercial-solar-cost-per-kw-georgia
Topic: commercial solar cost per kW Georgia
Last updated: 2026-07-29
An honest breakdown of commercial solar cost per kW in Georgia: why price per watt falls with system size, what the line items actually are, which four variables swing a quote, and how to compare two proposals that look different.
**Commercial solar cost per kW in Georgia** is the question every buyer asks
first and almost no solar website answers. There is a reason for the silence:
the number moves with system size, roof condition, the distance from the array
to the point of interconnection, and whatever the utility decides it needs on
its side of the meter. Publish one figure and it will be wrong for most readers.
The alternative is to explain how the number is built, so you can read a quote
and know whether it is cheap because the contractor is efficient or cheap
because something has been left out. That is what this article does. Every price
in it is an illustrative planning range, marked for verification, and none of it
is a quote for your building.
We have installed more than 7.8 MW for commercial and agricultural customers,
most of it in Georgia, including the
[1.267 MW rooftop solar and battery installation at Samsonite and TUMI](/projects/samsonite-tumi-1267kw-rooftop-solar-battery)
in Vidalia. The ranges below are how we think about pricing before a site walk.
## Why does the cost per watt fall as the system gets bigger?
Because a large share of a solar project is fixed regardless of size. Design
hours, the stamped drawing set, the permit application, the interconnection
application, mobilizing crews and equipment to site, and the commissioning
process cost roughly the same on a 150 kW array as on a 600 kW one. Spread over
four times the capacity, they are a quarter of the burden per watt.
As illustrative planning bands for Georgia, before incentives:
| System size | Illustrative installed cost | What changes at this size |
| --- | --- | --- |
| 100–250 kW | $2.20–$2.90 per watt | Fixed engineering and mobilization dominate |
| 250–500 kW | $1.90–$2.50 per watt | Better module and inverter pricing; string inverters still |
| 500 kW–1 MW | $1.70–$2.20 per watt | Larger inverters, medium-voltage interconnection likely |
| 1 MW and above | $1.50–$2.00 per watt | Utility-side work becomes a bigger share of the total |
Treat that table as a way to sanity-check a proposal, not as a price list. The
break points are soft and a difficult site in one band will price like the band
above it.
## What is actually in the number?
An installed cost per watt is a bundle of at least a dozen line items, and only
one of them is the thing most people shop on.
| Cost driver | Illustrative share of installed cost | What moves it |
| --- | --- | --- |
| Modules | 25–35% | Wattage class, tariffs, domestic content |
| Inverters | 8–14% | String vs central, DC:AC ratio, monitoring |
| Racking and attachments | 8–15% | Roof type, wind load, ballast vs penetration |
| DC and AC wiring, combiners | 6–12% | Distance from array to point of interconnection |
| Switchgear and protection | 4–10% | Utility protective relaying requirements |
| Structural and civil work | 0–15% | Purlin reinforcement, foundations, site prep |
| Engineering and permitting | 4–8% | PE stamps, AHJ review, structural calculations |
| Interconnection and utility upgrades | 2–15% | Study result, transformer, service capacity |
| Labor and construction management | 15–25% | Site access, height, roof complexity |
| Commissioning and monitoring | 1–3% | Testing, witness test, as-builts |
The interesting thing about that list is how wide the ranges are on the items
nobody puts on the front page of a proposal. Structural work and interconnection
can each be zero on an easy site and a large number on a hard one. Modules,
which is where the price conversation usually starts, are the most predictable
item on the sheet.
## Which four variables swing a Georgia quote the most?
1. **Roof type and remaining life.** Standing seam metal is the friendliest
surface in the Southeast because clamps attach without penetration. Ballasted
membrane roofs need a structural check. And a roof with fewer years left than
the array is a decision to pay for removal and reinstallation later, which
belongs in the economics now rather than in year ten.
2. **Distance from the array to the point of interconnection.** Copper, conduit
and trenching are priced by the foot. A ground mount 800 feet from the
service entrance can cost meaningfully more per watt than the same array
200 feet away, and the loss on the run has to be engineered around.
3. **What the utility requires.** A transformer replacement, a protective
relaying package or a service upgrade is utility-side work you pay for, and
it does not scale with the array.
4. **Whether storage is included.** Batteries are priced separately and change
the value case as well as the cost. On demand-charge-heavy tariffs they can
be the better part of the return.
## Is a roof, a ground mount or a canopy cheaper?
In Georgia the hierarchy is fairly consistent. **Roof mounts** are usually the
cheapest per watt: no land, no foundations, no site work, and the array sits
close to the load. **Ground mounts** add foundations, site preparation, fencing
and a longer conductor run, but buy you correct orientation and tilt, no roof
risk, and easy maintenance access. **Canopies** cost the most, often
1.5 to 2 times a comparable rooftop array, because the
structure is doing two jobs — carrying panels and covering vehicles — and the
steel is engineered for both.
Choose on remaining roof life first and price second. That decision is made
during the feasibility stage of our
[commercial solar EPC contract](/services/commercial-solar-epc), before anything
is designed around a roof that will not last.
## Why can an interconnection study change the economics more than module pricing?
Because a module price swing of a few cents per watt moves a 500 kW project by a
modest amount, while an interconnection study that calls for a transformer and
protective relaying can move it by a much larger one — and it arrives after the
design, when you have already spent money.
The most expensive words in a commercial solar proposal are "utility upgrades
excluded". If the study comes back requiring utility-side work, someone pays for
it. Get it in writing whether that is you, the contractor, or a shared cap.
This is also the argument for having the interconnection looked at by someone
who does it for a living before the layout is fixed. Our VP of Engineering has
been working medium- and high-voltage renewable interconnections since 1992, and
vets sites for interconnection compatibility and congestion constraints as part
of the design. Finding a problem before the study
is a design change; finding it after is a change order.
## How do incentives change the net number?
They do not change what the work costs. They change what you pay for it.
The
[federal solar investment tax credit](/incentives/federal-solar-tax-credit),
currently 30%, applies to eligible project cost, and
[Section 179 and bonus depreciation](/incentives/section-179-solar) affect how
quickly you recover the balance. Rural and agricultural sites may also be
eligible to apply for a USDA REAP grant, which is competitive and never
guaranteed. Your accountant determines what you can actually claim.
Compare proposals on gross installed cost per watt first, then apply incentives.
Doing it the other way around makes an expensive system with an optimistic tax
assumption look like the better deal. To model your own site, the
[commercial solar savings calculator](/calculator) turns a monthly bill into a
system size, an annual saving and a payback range.
## How should you compare two quotes that look different?
Line the two proposals up and check five things before you look at the price.
- **DC:AC ratio.** More modules per inverter changes production and clipping. Two systems described as "500 kW" can have different module counts.
- **Racking and attachment method.** Penetrating, clamped or ballasted, and whether the detail meets the roof manufacturer's warranty requirements.
- **Warranty terms.** Module, inverter and, separately, the workmanship warranty on the installation itself.
- **Interconnection risk.** Included, excluded, or capped — and who pays if the utility study comes back expensive.
- **Production estimate methodology.** What software, what weather data set, what soiling and degradation assumptions.
A cheaper number is legitimate when a contractor is efficient, buys well or is
already working nearby. It is not legitimate when it is cheaper because the
structural work, the trenching or the utility upgrade has been left for you to
find later.
If you want the same treatment applied to your building, our pages on
[commercial solar installation in Georgia](/commercial-solar-installation-georgia)
and [solar for manufacturing facilities](/industries/manufacturing) cover the
utility landscape and the building types we price most often. Send twelve months
of bills and we will price the site rather than the postcode.
### Frequently asked questions
**How much does a 1 MW solar installation cost in Georgia?**
A megawatt-scale commercial array is priced per watt, and larger systems carry a lower per-watt cost than small ones because engineering, mobilization and interconnection are spread over more capacity. The honest answer for any specific site depends on the roof or ground conditions, the distance to the point of interconnection, and what the utility requires on its side. Anyone quoting a megawatt from a satellite image is guessing.
**Why do two commercial solar quotes for the same building differ so much?**
Usually because they are not the same system. Check the DC to AC ratio, because a proposal with more modules per inverter produces differently. Check the racking and the roof attachment method, the module and inverter warranty terms, and whether utility interconnection costs and any transformer or relaying upgrade sit inside the price or are excluded. The cheaper number is often the one carrying more of your risk.
**Does a ground mount cost more than a rooftop array in Georgia?**
Generally yes, per watt, because a ground mount adds foundations, site preparation, fencing, trenching and a longer conductor run back to the service. It buys you ideal orientation and tilt, no roof risk and easier maintenance access, and it becomes the better answer when the roof has less remaining life than the array. Canopy structures cost the most because the steel is doing two jobs.
**What is the single biggest cost surprise on a commercial solar project?**
Utility interconnection. A study result that calls for a transformer replacement, a protective relaying package or a service upgrade can add a large sum after the proposal was signed, and it lands late enough to change the payback. That is why interconnection deserves to be looked at before the design is finalized rather than after, and why the contract should say plainly who carries that cost.
**Do solar incentives change the cost per kW or the payback?**
They do not change what the contractor charges per kW, but they change what you ultimately pay. The federal investment tax credit, depreciation and, for rural sites, a USDA REAP grant apply to the net cost rather than the gross. Your accountant determines what you can claim, so compare proposals on installed cost per watt first and layer the incentives on afterward.
**Should I replace the roof before installing commercial solar?**
If the roof has materially less life left than the array, yes. A 25-year system on a roof with eight years remaining commits you to paying for removal and reinstallation later, which can cost more than doing the roof first. We assess remaining roof life during the feasibility stage and will recommend a ground mount instead when the roof does not justify the array.
---
## Solar for Poultry Farms: What 4.8 MW of Installations Taught Us
Source: https://www.owsolar.com/insights/solar-for-poultry-farms-cost-and-results
Topic: poultry farm solar cost
Last updated: 2026-07-29
Three installed poultry systems — 210 kW on six breeder houses, 450 kW on fourteen broiler houses, 410 kW on sixteen — and what the differences between them tell you about sizing, cost and payback on your own farm.
Ask three poultry growers what their neighbors paid for solar and you will get
three different answers, all of them true. **Poultry farm solar cost** does not
resolve to a price per house, and the clearest proof of that sits in our own
portfolio: three installed Georgia farms whose systems come out at noticeably
different kilowatts per house.
OneWorld Solar has installed over 4.8 MW on U.S. poultry houses. Three of those
systems are named in our project record, and lining them up next to each other
explains more about how to size and price a farm array than any rule of thumb
does.
This article is about what we learned building them: what actually drives a
grower's power bill, why summer works so well and winter nights do not, how roof
condition changes the answer, and what a USDA grant does and does not change.
For what the technology does on a farm generally, start with
[solar panels for poultry farms](/industries/poultry).
## What did three real poultry systems look like?
Read those three lines slowly, because the interesting part is easy to miss. The
16-house farm has more houses than the 14-house farm and a **smaller** array.
Per house, the range across the three runs from about 35 kW down to about 26 kW
— close to a third of a difference on the same nominal unit.
If kilowatts per house were a constant, solar sizing on a poultry farm would be
arithmetic. It is not, and a proposal built on a per-house multiplier is a
proposal built on someone else's farm.
## Why is kW per house not a constant?
Six things explain most of the spread.
- **House size and age.** A modern 66 x 600 house is a different electrical
animal from a 40 x 400 house built decades earlier. More square footage means
more fans, more lighting and more air to move.
- **Ventilation and cooling equipment.** Tunnel fan count and horsepower is the
single biggest driver of a summer bill. Two farms with identical house counts
can differ substantially on installed fan capacity, and cool cell pump loads
ride on top of that.
- **Breeder versus broiler duty.** Breeder houses run lighter ventilation but
longer and more controlled lighting hours, and the load profile is flatter
across the year. Broiler houses swing hard between brooding and grow-out.
- **Where you are in the flock cycle.** A house half-way through grow-out in
July pulls very differently from the same house during brooding in January.
Sizing from a single month's bill gets this wrong in both directions.
- **Roof orientation and usable area.** Houses are laid out for airflow and
equipment access, not for the sun. A farm whose houses run north-south gets a
different production profile from one running east-west, and vents, ridge
caps, fan housings and walkways eat into the usable roof plane.
- **Budget and award size.** This is the honest one. Sometimes the array is
sized by what the roof and the load justify, and sometimes it is sized by what
the grower could fund in that year. A farm that covers ten of sixteen roofs is
a complete project, not a compromise.
The three projects are documented individually:
[210 kW on a 6-house breeder farm](/projects/poultry-210kw-6-house-breeder-solar),
[450 kW on a 14-house broiler farm](/projects/poultry-450kw-14-house-broiler-solar)
and
[410 kW on a 16-house broiler farm](/projects/poultry-410kw-16-house-broiler-solar).
## What actually drives a poultry farm's power bill?
Four loads account for most of it, and they do not arrive evenly through the
year.
**Tunnel fans and cool cells** dominate summer. On a hot Georgia afternoon a
closed house is running fans continuously and pumping water over cool cell pads,
and that is the peak the utility bills you on. **Brooder heat** dominates
winter, and on most farms it is propane rather than electricity, which puts it
outside what solar can touch. **Feed augers and feed line motors** run in short,
frequent bursts through the day. **Well pumps and pressure systems** run
whenever birds drink, which is daylight-weighted and rises with temperature.
The pattern that matters: your heaviest electrical demand happens in daylight,
in summer, on exactly the days a solar array produces most.
## Why does summer peak line up so well with solar?
Because both curves are driven by the same thing — heat. The hotter the
afternoon, the harder the tunnel fans run and the more the array produces. That
correlation is worth more than it sounds, because power you consume on site is
worth full retail to you, while power exported to the grid is worth whatever
your utility's export arrangement says it is, which is usually less.
A farm that self-consumes most of what it generates has a fundamentally better
economic case than a building that exports half its production at midday. This
is why poultry houses are one of the better commercial solar hosts in the
Southeast, and why so much of our
[commercial solar installation work in Georgia](/commercial-solar-installation-georgia)
sits on farms. The same arithmetic holds wherever the houses are: North Carolina
is the second-largest poultry state in the country, and
[commercial solar installation in North Carolina](/commercial-solar-installation-north-carolina)
runs into the same ventilation loads and the same REAP eligibility.
Solar does nothing for night-time brooding load. A grid-tied array produces
nothing after dark, and winter brooding is both a night load and often a propane
load. Any proposal showing a farm at a near-zero power bill year round has
either oversized the array or ignored the placement calendar.
## What about outages, when ventilation is the whole business?
A summer outage in a closed house is measured in minutes before it is serious,
which is why nearly every farm already runs a generator. A grid-tied solar array
does not help — it shuts down when the grid does, by design.
What does help is a
[commercial micro-grid](/services/micro-grids) that can island the farm and keep
tunnel fans and controllers running on solar and storage. If your standby
generator is approaching replacement, comparing that cost against a battery that
also shaves daily peaks is a conversation worth having before you buy another
diesel.
## Does the roof have enough life left?
This is the question that kills more poultry projects than price does, and it
should be asked before anything else. An array is a multi-decade asset. Bolting
one to a metal roof with under ten years left commits you to paying for removal
and reinstallation when the roof is replaced.
On older houses the practical options are re-roofing first, putting the array on
the newest houses only, or going to a ground mount on unused ground near the
service entrance. All three are legitimate. Pretending the roof is fine is not,
and we will say so at the site walk.
## How do you build around bird placements?
Carefully, and with your calendar rather than ours. Roof work over an occupied
house needs sequencing: we work house by house, schedule the heaviest activity
into the down time between flocks, and keep crews and equipment away from the
tunnel inlets and cool cell ends when birds are in.
Send us your placement schedule before the construction schedule is written. A
poultry solar project is built around the birds; every one that goes badly
started with that assumption reversed.
## What does a REAP grant change about the payback?
It changes the denominator, not the array. A
[USDA REAP grant for solar](/incentives/usda-reap-grant) is a competitive,
points-based cost-share program that rural agricultural producers may be
eligible to apply for. Nobody can promise you an award.
If you receive one, it reduces the capital you put into the project, which
shortens the payback on the money you actually spend. As an illustrative example
only — not a quote and not a prediction — a project with a simple payback of
eight to ten years unassisted might land nearer
four to six years once a cost-share award and the federal
tax credit are applied. Your own numbers depend on your bills, your rate
schedule and what your accountant confirms you can claim.
Our advice to growers is consistent: make the decision on whether the project
works without the grant. If it only works with an award nobody can guarantee,
you are betting the farm's capital on a scoring committee. Send twelve months of
bills and your house count, and we will model both cases before you commit to
either.
### Frequently asked questions
**How many kilowatts of solar does a poultry house need?**
There is no fixed figure per house, which surprises most growers. Across three of our installed farms the ratio ranges from about 35 kW per house on a six-house breeder farm down to roughly 26 kW per house on a sixteen-house broiler farm. House size, fan and cool cell capacity, lighting type, well pumps and usable roof area all move it, so sizing comes from twelve months of bills rather than a rule of thumb.
**What is the payback period on solar for a broiler farm?**
It depends on your power bill, the system size and which incentives you are able to claim, so any single number is marketing rather than analysis. The variables that matter most are how much of your generation you consume on site instead of exporting, your utility rate structure, and whether a USDA REAP grant award reduces the amount of capital you have to put in. We model it from your bills before quoting.
**Will solar reduce my brooding costs?**
No, and any proposal implying otherwise is worth questioning. Brooding heat peaks at night and in cold weather, is often propane rather than electric, and solar produces neither at night nor at high output in winter. Solar offsets your daytime electrical load: tunnel fans, stir fans, cool cell pumps, lighting, feed augers and well pumps. That is where the money is on a summer bill, but it is not the whole bill.
**Can you install solar while I have birds in the houses?**
Usually yes, with planning around your placement schedule. Roof work directly over an occupied house is the part that needs care, so we sequence the array house by house and do the noisiest work during down time between flocks. Share your placement calendar before the schedule is written rather than after, because a poultry construction schedule is built around the birds, not the other way around.
**Is a roof mount or a ground mount better for poultry houses?**
Roof mounting is usually more efficient because the houses are long, unshaded and already sitting next to the load, which keeps conductor runs short. Ground mounts win when the roofs have less remaining life than the array, when purlin spacing will not carry the load without reinforcement, or when you have unusable ground near the service entrance. We assess both during the site walk and say plainly which one your farm justifies.
**Does a REAP grant guarantee my solar project will pay for itself?**
No. REAP is competitive and points-based, awards depend on the funds available in that round, and no contractor can promise you one. What an award does change, if you receive one, is the amount of capital you have to put in, which shortens the payback on the money you actually spend. Build your decision on the project working without the grant, and treat an award as improvement rather than premise.
---
## Solar Payback Period for Car Dealerships: Real Numbers
Source: https://www.owsolar.com/insights/solar-payback-car-dealerships
Topic: solar payback period for car dealerships
Last updated: 2026-07-29
Dealerships have an unusually good load profile for solar: the building draws hardest exactly when the sun is up. Here is what that does to payback, where the roof runs out, and why lot lighting and DC fast charging need a different answer.
Car dealerships are one of the better commercial solar candidates in the Southeast, and the reason is boring: the building draws hardest exactly when the sun is up. The **solar payback period for car dealerships** benefits from that alignment more than most property types, because energy consumed on site is worth your full retail rate rather than whatever your utility pays for exported power.
That said, a dealership is not one load. It is a showroom, a service department, a body shop, a wash bay and a lit lot, and those four or five things behave very differently. Some of them solar addresses well. One of them, the lot lighting that burns from dusk to close, solar does not address directly at all. Being clear about which is which is the difference between a proposal that holds up and one that disappoints in year two.
OneWorld Solar has built more than 1 MW across the Woody Folsom Automotive Group's Chevrolet, Ford and Chrysler Dodge dealerships, so what follows is written from that work rather than from a generic commercial template. All figures further down are illustrative and marked as such.
## What does a dealership's load profile actually look like?
Break the building into its parts and the pattern is obvious.
- **Showroom HVAC.** A glass box in a Georgia summer is an air conditioning problem before it is anything else. Solar gain through the display glass drives cooling load that peaks in the middle of the afternoon, which is also when a solar array is producing hardest.
- **Lighting.** Showroom, offices, parts counter and service drive lighting runs the full business day, every day the doors are open.
- **Service bays.** Compressors, lifts, tire machines, alignment racks and diagnostic equipment. Intermittent, but heavily clustered in business hours, and the compressor is a spiky load.
- **Body shop.** Where there is one, paint booth fans, curing and extraction are meaningful loads with their own duty cycle.
- **Wash bay.** Pumps, blowers and heating, running through the day and often heaviest before a weekend.
- **Lot lighting.** Runs after dark, often until late, sometimes all night for security. Solar does nothing for this in real time.
Add those together and you get a consumption curve that rises through the morning, peaks in the afternoon and drops in the evening except for the lighting tail. That is close to the shape of a solar production curve, and it is why dealerships beat the average.
## How much roof do you actually have, and is it enough?
This is where enthusiasm meets a tape measure. A dealership footprint is usually a lot of building, but not all of it is usable.
The showroom roof is frequently interrupted by mechanical units, skylights and architectural features tied to the brand's facility standards. The service and parts building is normally the better host: larger unbroken planes, simpler structure, and out of the sightline from the road. On sites where the two buildings are separately metered, which array feeds which meter becomes a design decision with real financial consequences.
The practical question is not "how many panels fit" but "how many kilowatt-hours do you use, and what share of them can this roof cover." A roof that supplies a meaningful share of daytime consumption while staying within your interconnection limit is a better outcome than the largest array the structure will hold. We assess the roof, its remaining life and the attachment method during the feasibility study, because putting a long-life array on a roof that is near the end of its own service life is a decision to pay to remove and reinstall it later.
## Are solar canopies over inventory worth the extra cost?
Sometimes the roof is not the answer. Dealerships sit on a great deal of paved, sun-exposed land that is already yours, already cleared, and already serving a purpose.
A canopy over inventory or customer parking generates power and does two other things at once: it shades vehicles from heat and it puts a structure between your inventory and hail. For a lot carrying a large number of new units, that protection has a value that has nothing to do with kilowatt-hours, and it belongs in the business case.
The honest trade-off is cost. Canopies require structural steel and foundations, so they cost more per installed watt than a rooftop array on an existing building. If you judge a canopy purely on energy payback against a rooftop alternative, the rooftop wins. If you judge it on energy plus hail and heat protection plus a covered customer experience, the answer often flips.
## What does EV charging do to the numbers?
This is the part that changes fastest, and it is where the most expensive mistakes are being made right now.
Level 2 charging on the service drive is a manageable load. DC fast charging is not the same animal. It draws very high power for short periods, and a single charging event can establish a new billed peak demand for the month. Adding panels does not fix that, because the charging event may happen when the array is not producing, and because your utility may set your peak demand at times when solar is not effective, including cloudy days and after dark. Solar reduces your total consumption; it cannot be expected to mitigate your peak demand.
The tool that addresses a demand spike is [commercial battery storage](/services/battery-storage), which discharges into the peak so the meter never sees it. If your franchise agreement is pushing you toward fast charging, model the charging load and the demand charge before you size the array, not after. The right project may be a smaller array plus storage rather than a larger array alone.
## How do brand standards constrain what goes on the roof?
Manufacturer facility image programs govern elevations, materials, signage sightlines and, in some cases, roof work and approvals. A group carrying several franchises may be working within several sets of standards simultaneously.
Solar is rarely prohibited, but visibility from the front elevation, module placement relative to signage, and who signs off are all live questions. They are far cheaper to resolve during design than during permitting. We work them into the layout at the start.
## An illustrative payback walkthrough
The table below is an **illustration only**, built from round numbers to show how the pieces fit together. It is not a quote and it is not a projection of your result. Every figure needs verification against current pricing, your own rate schedule and current tax law.
| Line | Illustrative figure |
| --- | --- |
| System size | 250 kW |
| Installed cost | $500,000 |
| Federal investment tax credit at 30% | $150,000 |
| Illustrative value of depreciation deductions | $89,250 |
| Illustrative net cost after credit and depreciation | $260,750 |
| Estimated annual utility saving | $45,000 |
| Resulting simple payback range | 5 to 8 years |
Four variables move it more than anything else: your effective blended rate per kWh, the share of production consumed on site rather than exported, whether your tariff carries a demand charge, and whether your business has the federal tax liability to actually use the credit and the deductions. That last one is your Certified Tax Accountant's call, not ours, and the credit is claimed on your return rather than granted by us.
You can generate a first-pass size, saving and payback range from your monthly bill with the [commercial solar savings calculator](/calculator). For the tax mechanics, see [Section 179 solar depreciation](/incentives/section-179-solar) and the [30% commercial solar tax credit](/incentives/federal-solar-tax-credit).
## What did the multi-rooftop approach at Woody Folsom look like?
Woody Folsom Automotive runs multiple franchises across multiple sites, and treating them as one portfolio rather than three unrelated buildings changed the project. Engineering, procurement and crew mobilization were shared, the metering and interconnection questions were worked through as a set, and the group ended up with more than 1 MW installed across the Chevrolet, Ford and Chrysler Dodge stores.
If you operate more than one rooftop, that is worth considering before you pilot solar on a single store. The detail is in the [Woody Folsom Automotive 1 MW solar case study](/projects/woody-folsom-automotive-1mw-solar), with more on the sector at [solar for car dealerships](/industries/automotive) and on the state's rate and interconnection landscape at [commercial solar installation in Georgia](/commercial-solar-installation-georgia).
Send us twelve months of bills for each store. The load profile does most of the talking.
### Frequently asked questions
**What is a typical solar payback period for a car dealership?**
It depends on installed cost, your utility rate, how much of your consumption falls in daylight hours and which incentives you can actually use. Dealerships tend to sit at the better end of commercial ranges because their load is daytime-heavy, so a high share of production is consumed on site rather than exported. Any payback figure quoted without reading your rate schedule and twelve months of bills is a guess.
**Why are car dealerships good candidates for solar?**
Because the building draws hardest when the sun is up. Showroom HVAC fighting a wall of south-facing glass, all-day lighting, service bay compressors and lifts, the body shop and the wash bay all run during business hours. Energy consumed on site is worth your full retail rate, which is normally better than whatever your utility pays for exported power, so a daytime load profile improves the economics directly.
**Will solar cover a dealership's lot lighting?**
Not directly, because lot lighting runs after dark and solar generates during daylight hours only. Solar reduces your total kWh consumption, and depending on how your utility handles net excess generation, daytime production may offset part of your overall bill. But it does not power evening loads in real time. Reducing lot lighting cost is usually an LED retrofit question rather than a solar question.
**Do solar canopies over dealership inventory make sense?**
Often, yes, and for reasons beyond generation. A canopy over inventory or customer parking produces power from land you already own, and it shades vehicles from hail and heat, which reduces reconditioning and detailing exposure. Canopies cost more per watt than a rooftop array because of the structural steel and foundations, so the added protection has to be part of how you judge the return.
**How does EV charging change dealership solar economics?**
It changes the shape of the problem. DC fast charging draws very high power for short periods, and that can set a new billed peak demand that more solar panels will not fix, because the charging event may not coincide with production. Demand charges respond to battery storage rather than to additional array capacity. Model the charging load before sizing the array, not after.
**Can manufacturer brand standards stop you putting solar on the roof?**
They can constrain it. Facility image programs govern elevations, materials, signage sightlines and sometimes roof work, and dealerships carrying multiple franchises may be dealing with several sets of rules at once. Solar is rarely prohibited outright, but approval, module placement and visibility from the front elevation need to be worked through early. We design around those constraints rather than discovering them at permitting.
---
## Commercial Solar Tax Credit + Section 179: Stacking Incentives
Source: https://www.owsolar.com/insights/stacking-solar-tax-credit-section-179
Topic: stacking solar tax credit and Section 179
Last updated: 2026-07-29
The investment tax credit, Section 179 and bonus depreciation are three different mechanisms, not one. Here is the order they apply in, why the credit shrinks your depreciable basis, and a fully illustrative walkthrough of a $500,000 project.
Most of the confusion around commercial solar economics traces back to a single sentence spoken in a sales meeting: "you get thirty percent back, and you write the rest off." **Stacking solar tax credit and Section 179** benefits is real, and together they are the largest single lever on what a solar array actually costs your business. But they are two different mechanisms, acting on two different parts of your return, applied in a specific order. Get the order wrong and the answer moves by tens of thousands of dollars on a mid-size project.
This is written for the person who has to defend the number to a board, a lender or a partner: the CFO, the controller, the owner who signs. It covers what each mechanism actually is, how they interact, why claiming the credit shrinks the amount you are allowed to depreciate, and why a business with little federal tax liability can get far less out of a solar project than a proposal implies.
Every number below is illustrative and labeled as such. We chose round figures to make the mechanics visible, not to predict your outcome. OneWorld Solar designs and builds systems as a [commercial solar EPC contractor](/services/commercial-solar-epc). We do not prepare your return, and nothing on this page is tax advice.
## What are the three mechanisms, and why do people conflate them?
Three separate things get compressed into the phrase "solar tax benefits." They behave differently and they are limited differently.
**The federal investment tax credit** is a *credit*. It reduces your federal tax bill dollar for dollar, currently 30% of eligible project cost for qualifying commercial systems, with additional bonus adders available for domestic content, energy communities and certain siting conditions. The mechanics, eligibility and placed-in-service timing live on our [30% commercial solar tax credit page](/incentives/federal-solar-tax-credit).
**Section 179 expensing** is an *election*. Rather than recovering equipment cost over several years, you elect to deduct qualifying cost in the year the asset is placed in service. Two limits matter. There is a hard annual dollar cap on the total you may expense, with a phase-out once total qualifying purchases exceed a threshold (verify the current-year cap and phase-out threshold). And there is a taxable-income limitation: the deduction cannot exceed your aggregate taxable income from active trades or businesses, though a disallowed amount generally carries forward. See [Section 179 solar depreciation](/incentives/section-179-solar) for the mechanics.
**Bonus depreciation and MACRS** are a *deduction schedule*. Solar equipment is generally treated as five-year MACRS property. Bonus depreciation allows a large share of the remaining basis to be deducted in year one (verify the current-year bonus percentage, which has been on a legislated phase-down schedule), with whatever is left recovered across the normal schedule. Unlike Section 179, bonus depreciation has no taxable-income limitation and can create or increase a net operating loss.
A $1 credit reduces the tax you owe by $1. A $1 deduction reduces your taxable *income* by $1, which at a 21% federal rate is worth about $0.21. Anyone adding "a 30% credit plus a 100% write-off equals 130% back" is adding two different currencies. Deductions are worth your marginal rate, not their face value.
## Does claiming the tax credit reduce what you can depreciate?
Yes, and this is the step most spreadsheets skip. Under current federal rules the depreciable basis of the system is reduced by half of the credit claimed. You cannot take the credit on the full installed cost and then depreciate that same full cost.
That makes the order of operations non-negotiable:
1. Establish the eligible cost basis of the system.
2. Compute the investment tax credit on that basis.
3. Reduce the depreciable basis by half the credit.
4. Apply the Section 179 election against the reduced basis, subject to the annual cap and the taxable-income limitation.
5. Apply bonus depreciation to what remains.
6. Recover the balance over the MACRS schedule.
Run those steps out of sequence and you will overstate the benefit. It is the most common error we see in third-party proposals, and it is usually not deliberate.
## What happens if your business has no tax liability?
A credit applied against zero tax is worth zero this year. That is the blunt version, and it matters more than equipment selection ever will.
Carryforward and carryback provisions exist, and certain entities may have transferability or elective payment routes available, but none of that is automatic and none of it is a substitute for planning. If your company is structured so that it consistently reports little taxable income, or if it is in a loss position, the headline incentive value simply may not reach you on the timeline a proposal assumes. Profitability and entity structure are the two variables that decide whether these incentives are worth their face value to you.
## How does a USDA REAP grant interact with the credit and the basis?
Rural and agricultural sites often look at a [USDA REAP grant](/incentives/usda-reap-grant) alongside the credit. It does not simply stack on top.
A grant changes what you actually paid for the asset, and depending on how the award is characterized and when it is received it can affect eligible basis, taxable income, or both. It is also competitive and discretionary. We prepare the technical documentation a REAP application needs, but eligibility is determined by USDA, and the award is the applicant's responsibility to procure and validate. No one, including us, can tell you that you will receive one. You may be eligible to apply.
## How do the benefits reach the owners of a pass-through entity?
If the system is owned by an S corporation, a partnership or a multi-member LLC, neither the credit nor the deductions are used at the entity level. They pass through to the owners on their K-1s and are used, or not used, on individual returns.
Whether an owner can actually use them depends on that owner's own tax liability, outside basis, at-risk amount and passive activity status. An owner who does not materially participate in the business may find the deductions suspended. Two partners in the same project can get materially different outcomes from the same dollar of expenditure. This is worth modeling *before* the ownership structure is fixed, not after.
## Do states treat solar depreciation the same way?
No, and it is worth checking early. States vary on whether they conform to federal bonus depreciation, whether they honor the Section 179 election at the federal amount, and whether they add credits, sales tax exemptions or property tax treatment of their own. Two identical buildings in two neighboring states can produce different after-tax results for that reason alone. Model the state return separately.
## A worked illustrative example on a $500,000 project
The following is an **illustration only**, using round numbers and a single assumed tax rate to make the sequence legible. It is not a projection of your result and it does not reflect verification of current law.
| Step | Illustrative figure |
| --- | --- |
| Installed project cost | $500,000 |
| Investment tax credit at 30% | $150,000 |
| Basis reduction (half the credit) | $75,000 |
| Depreciable basis after reduction | $425,000 |
| Section 179 election taken in year one | $200,000 |
| Remaining basis for bonus and MACRS | $225,000 |
| Total depreciation deductions over the schedule | $425,000 |
| Value of those deductions at a 21% rate | $89,250 |
| Illustrative net cost after credit and deductions | $260,750 |
Two things to notice. First, the credit is the larger and faster benefit, because it is worth its face value. Second, the deductions are worth your marginal rate, and the Section 179 slice only lands in year one if you have the active business income to absorb it.
If you want an order-of-magnitude picture of system size, annual savings and payback before you take any of this to your accountant, the [commercial solar savings calculator](/calculator) will produce one from your monthly bill. Facility-specific context is on our pages for [solar for manufacturing facilities](/industries/manufacturing) and [solar for car dealerships](/industries/automotive).
## Who actually makes this decision?
Not your solar contractor. We can tell you what the system costs, what it is expected to produce, when it will be placed in service, and what documentation your accountant will need. We can hand over a clean evidence package.
What we cannot do, and will not do, is tell you which election to make or what your after-tax cost will be. That is your Certified Tax Accountant's call, made with your full income picture and current-year law in front of them. Take the numbers on this page as a structure for the conversation, and let them fill in the real figures.
### Frequently asked questions
**Can you claim the solar tax credit and Section 179 on the same project?**
Generally yes, because they are different mechanisms doing different jobs. The investment tax credit is a credit against your federal tax liability. Section 179 is an election to expense equipment cost in year one instead of depreciating it over several years. They are not alternatives to each other. What you cannot do is apply both to the same dollars twice, because claiming the credit reduces the basis you are allowed to depreciate or expense. Confirm the current rules with your Certified Tax Accountant.
**Does the solar tax credit reduce the amount you can depreciate?**
Yes. Under current federal rules the depreciable basis of a solar system is reduced by half the credit claimed, so you cannot depreciate the full installed cost after taking the credit. This single step is the one most spreadsheets get wrong, and missing it overstates the tax benefit of a commercial solar project noticeably. Your accountant should compute the credit first, reduce basis, and only then apply Section 179 or bonus depreciation.
**What is the difference between Section 179 and bonus depreciation for solar?**
Section 179 is an election with an annual dollar cap and a taxable-income limitation, meaning the deduction cannot exceed your active business income for the year, though the excess carries forward. Bonus depreciation has no such income limitation and can create or increase a net operating loss. Many businesses use both, taking Section 179 first up to the useful limit and bonus depreciation on the remainder. The right split depends on your income picture.
**What happens if my company has no federal tax liability?**
A credit against zero tax is worth zero in that year. Carryforward and carryback rules exist, and certain entities may have transferability or elective payment options available, but none of that is automatic. If your business is structured so that it reports little taxable income, the headline value of solar incentives may not reach you in the way a proposal implies. Discuss entity structure with your accountant before signing anything.
**How does a USDA REAP grant affect the tax credit and depreciation?**
A grant changes what you actually paid and can change both your eligible basis and your taxable income, depending on how the award is characterized and when it is received. It does not simply add on top of the credit and depreciation. OneWorld Solar prepares the documentation for a REAP application, but eligibility is determined by USDA and the award is the applicant's responsibility to procure and validate.
**Do state taxes follow the federal solar depreciation rules?**
Not always. States differ on whether they conform to federal bonus depreciation, whether they accept the Section 179 election at the federal amount, and whether they offer credits or exemptions of their own. Two identical projects in two neighboring states can produce different after-tax numbers for that reason alone. Your accountant needs to model the state return separately rather than assuming it mirrors the federal one.
---
## How to Apply for a USDA REAP Grant for Solar
Source: https://www.owsolar.com/insights/usda-reap-grant-application-guide
Topic: REAP grant application for solar
Last updated: 2026-07-29
What a REAP grant application for solar actually involves, in order: rural eligibility, the energy assessment or audit, the technical report, SAM registration, matching funds, the environmental review, scoring and reimbursement.
A **REAP grant application for solar** is closer to a loan submission than a
form. USDA Rural Development wants proof that you are eligible, an independent
view of how much energy your operation uses, a technical design a reviewer can
check, several years of financials, a federal vendor registration and an
environmental clearance — and it wants all of that before your project is scored
against everyone else who applied in the same funding window.
We prepare the technical and energy portions of these applications for rural
clients across the Southeast, most of them poultry growers within a couple of
hours of our office in Vidalia, Georgia. The terms move: cost-share percentage,
maximum award, audit threshold and filing dates are all set in the funding
notice for the round you file in, so every figure below is marked for
verification. The sequence does not move, and that is what this guide covers.
For what the program is and who it is for, start with our page on
[the USDA REAP grant for solar](/incentives/usda-reap-grant). This article is
about getting through it.
Percentages, caps, thresholds and deadlines in this article are illustrative and
change between funding notices. Nothing here is tax, legal or grant advice, and
no contractor can promise you an award. Confirm the current terms with USDA
Rural Development and your own advisors.
## Are you eligible to apply?
Two gates come first, and both are worth settling before you spend a dollar on
anything else.
**Location.** The site has to sit in an eligible rural area, which is defined by
population rather than by how rural it feels — commonly a place outside a city
or town above roughly 50,000 people and its adjacent
urbanized area. USDA publishes a mapping tool that answers this by address. A
farm on the wrong side of a boundary is not eligible, no matter how many houses
it runs.
**Business type.** Applicants are generally either agricultural producers, who
must derive a share of gross income from agricultural operations —
at least 50% — or small businesses located in an eligible
rural area, sized against SBA standards for their industry. Poultry growers
usually clear the agricultural producer test comfortably, which is one reason
[solar panels for poultry farms](/industries/poultry) and REAP come up together
so often.
Beyond that, expect to certify that the operation has no delinquent federal debt
or outstanding federal judgments, and that the equipment is commercially
available, proven technology installed at the site of the operation.
## Do you need an energy assessment or a full energy audit?
Every renewable energy application has to be supported by a documented view of
the site's energy use. For smaller projects an **energy assessment** is enough.
Once total project cost passes a threshold — illustratively
$200,000 — a **full energy audit**, prepared to a
recognized standard by a qualified auditor, is generally required instead.
Find out which one applies before you build a schedule. An audit is a real piece
of work with a real fee, it takes weeks, and it has to reconcile against your
utility bills. If the audit says the farm uses one thing and the bills say
another, that discrepancy is the first thing a reviewer finds.
## Who writes the technical report?
The technical report is the engineering heart of the application, and it is
usually where a weak submission shows. A reviewer expects the design basis,
equipment specifications and data sheets, the system layout, the production
estimate with the methodology behind it, the interconnection arrangement, an
operations and maintenance plan, and the qualifications of the company doing the
work.
This is the part we write, because it is essentially the same package that goes
to the building department and the utility under our
[commercial solar EPC contract](/services/commercial-solar-epc). Our VP of
Engineering is a Professional Engineer licensed in six states and a NABCEP
board-certified Photovoltaic System Inspector. A production estimate is more
persuasive when the person standing behind it holds credentials the reviewer
recognizes.
## What financial and registration paperwork is required?
Two separate piles. The financial pile shows the business can carry the project;
the registration pile lets the federal government pay you. You need a Unique
Entity ID and an active SAM.gov registration: free, not instant, and it lapses
annually if nobody renews it. Start it early. Once you accept an award you are a
federal award recipient, with the reporting and record-keeping obligations that
come with it.
- Twelve months of utility bills for every meter on the site
- The energy assessment or full energy audit
- The technical report, drawings, equipment data sheets and production estimate
- An itemized quote from the installer, broken into line items rather than one number
- Business tax returns and financial statements, typically for the last three years
- Balance sheet, income statement and a current schedule of debt
- Evidence of the agricultural income share, or a small business size determination
- Written evidence of matching funds: cash on hand, a bank commitment letter or a loan term sheet
- Unique Entity ID and an active SAM.gov registration
- Site maps, aerial imagery and photographs for the environmental review
- Ownership structure, formation documents and the required federal certifications
## Why is the grant not the whole project cost?
Because REAP is a cost-share program. The grant covers a portion of eligible
project cost — illustratively up to 50%, subject to a
maximum award for renewable energy systems of $1 million —
and you must document where the rest is coming from.
Here is a worked illustrative example. It uses round numbers rather than a
quote, and shows only the mechanics. On a project priced at
$600,000, a cost share of 50% would
mean an application for a grant of $300,000 and
$300,000 that you have to fund yourself, from cash, a
conventional loan or a USDA guaranteed loan. Applications that show committed
matching funds read as ready to build; applications that leave the balance
unexplained do not.
Separately, the
[federal solar investment tax credit](/incentives/federal-solar-tax-credit),
currently 30%, and depreciation may also apply to the
project. How a grant interacts with your depreciable
basis is a question for your CPA, not your solar contractor — have that
conversation before you file.
## What does the environmental review involve?
USDA cannot obligate funds until the project clears a review covering historic
properties, threatened and endangered species, wetlands and floodplains, and
general site impact. Expect to supply maps, aerial imagery and site photographs.
Roof-mounted arrays on existing buildings are the simplest case, because there
is no ground disturbance to assess. Ground mounts on undisturbed land take
longer, which is one practical argument for putting the array on the house roofs
where the structure allows it. Nothing may be disturbed on site until the review
is finished.
## How is a REAP application scored?
REAP is competitive and points-based. You are not measured against a pass mark,
you are ranked against everyone else who filed in the same window, with a finite
pool of funds behind it. The criteria are published in the funding notice and
typically reward the share of your energy use the system replaces, cost
effectiveness, the applicant's size and type, whether matching funds are
committed, and how ready the project is to proceed.
In practice, the applications that score well are the complete ones. An audit
that reconciles to the bills. Commercially proven equipment. A production
estimate a reviewer can reproduce. Matching funds evidenced in writing. Every
signature present. Points are lost to administrative gaps far more often than to
weak projects.
## When should you apply, and when can you break ground?
Applications are accepted against cutoff dates published in the funding notice,
so the practical planning question is which window you are filing into and
whether the audit and the registrations will be finished in time.
Then the rule that costs growers the most money: **do not begin construction
before an award.** Costs incurred beforehand, and any site disturbance ahead of
the environmental review, are commonly treated as ineligible. Ordering early to
beat a price increase can disqualify the spend it was meant to protect. Sign the
EPC contract with the start conditioned on the award, and wait for written
authorization to proceed.
## What happens after an award?
Reimbursement, not a check in the mail. In most cases you build the system, pay
your invoices, then submit requests for payment with invoices and proof of
payment attached. Some awards allow partial draws against completed milestones;
final payment usually waits until the system is complete, inspected and
producing. Plan construction cash flow, and any interim financing, on that
basis. After that come the obligations people forget at signing: performance
reporting for a defined period, keeping the system operational and insured, and
retaining records for inspection.
## Should you hire help with the application?
Honestly, most growers do. The application is administratively heavy, the
narrative sections reward experience, and the cost of a rejected filing is a
year. Some hire an independent grant writer; others rely on their EPC contractor
for the technical half and handle the business half themselves.
On rural projects we prepare the technical report and the energy documentation
as part of the job rather than as an extra line item, which is how most of our
farm work under
[commercial solar installation in Georgia](/commercial-solar-installation-georgia)
gets filed. [Talk to us about a rural solar project](/contact) early enough to
make the next funding window rather than the one after it.
### Frequently asked questions
**How long does a REAP grant application for solar take?**
Budget several months from first conversation to an award decision. Gathering twelve months of bills, commissioning an energy audit, registering in SAM.gov and completing the environmental review typically takes weeks on its own, and applications are then reviewed and scored after the funding window closes. Because you generally cannot start construction before an award, the grant timeline, not the build, usually sets your project date.
**Can I start building before the REAP grant is awarded?**
You should assume not. Costs incurred before an award, and site work started before the environmental review is complete, are commonly treated as ineligible, which can cost you the grant on an otherwise strong application. The safe rule is that nothing gets ordered, delivered or disturbed on site until you have a written award and written authorization to proceed. Confirm the current rule with your Rural Development state office.
**Do I need an energy audit or an energy assessment?**
It depends on the size of the project. Smaller renewable energy projects can usually be supported by an energy assessment, while larger ones require a full energy audit prepared to a recognized standard by a qualified auditor. The threshold is set in the current funding notice, so check it before you build a schedule, because an audit costs money and adds weeks that a lighter assessment does not.
**Does a REAP grant cover the whole cost of a solar system?**
No. REAP is a cost-share program, so the grant covers a portion of eligible project cost and you must document where the balance is coming from before an award is made. That balance can be cash, a conventional bank loan or a USDA guaranteed loan. Applications that show committed matching funds are stronger than applications that leave the funding source open.
**Can OneWorld Solar guarantee I will get a REAP grant?**
No, and neither can anyone else. REAP is competitive and points-based, applications are scored against others filed in the same window, and awards depend on the funds available in that round. What we can do is prepare the technical report and the energy documentation to the standard a reviewer expects, so that the application is not weakened by the engineering half of the package.
**When do I actually receive REAP grant money?**
After you have spent it, in most cases. REAP normally works by reimbursement: you build the system, pay your invoices and then submit requests for payment with proof of the costs incurred. Some awards allow partial draws against completed milestones. Plan your project cash flow, and any interim financing, on the assumption that you fund construction first and are reimbursed afterward.
---
# News
## Large load tariffs in the Southeast: what they mean for a 500 kW business
Source: https://www.owsolar.com/news/large-load-tariffs-southeast-utilities-business
Topic: large load tariffs Southeast
Last updated: 2026-09-12
An August 2026 catalog from the Edison Electric Institute lists the large load tariffs now in force across the Southeast: FPL's 50 MW contract schedules effective January 1, 2026, Georgia Power's minimum billing and longer terms for 100 MW customers, and Duke Energy Florida's pending filing. They are written for data centers. Here is what they change for everyone else.
**Large load tariffs in the Southeast** are now a category of their own, and a catalog published by the Edison Electric Institute in August 2026 sets them out utility by utility. The document, [Large Load Projects and Tariffs](https://www.eei.org/-/media/Project/EEI/Documents/Issues%20and%20Policy/List%20of%20Large%20Customer%20Projects%20and%20Tariffs), updated August 28, lists the special rate schedules that state commissions have approved or are reviewing for data centers and large manufacturers, with the stated purpose of ensuring that "large load customers pay their fair share." For a business drawing 500 kW rather than 500 MW, the schedules do not apply. What they decide is who pays for the plants and lines that the new load requires, and that reaches every bill in the territory.
The catalog counts more than $1.03 trillion of publicly announced projects and more than 70 gigawatts of connected load across the association's member utilities, covering projects of roughly 20 MW and larger. Three Southeast entries are the ones that matter for a Georgia or Florida business.
## What do the Florida and Georgia large load tariffs require?
In Florida, docket 20250011 approved two new Florida Power & Light schedules, Large Load Contract Service 1 and Large Load Contract Service 2, for future customers with projected new or incremental load of 50 MW or more and a load factor of 85 percent or more. The catalog says the tariffs took effect on January 1, 2026 and "contain minimum terms, take or pay requirements, exit fees, and collateral requirements." In docket 20260064, Duke Energy Florida has filed an updated large load proposal in response to Senate Bill 484.
In Georgia, docket 44280 approved Georgia Power's amendment of its rules to provide minimum billing requirements and longer contract terms for customers with expected peak demand of 100 MW or more. The amended rules specify that contracts for transmission or distribution line extensions and service connections run as long as the rate schedule or longer, so that the utility recovers its cost and a large customer that terminates pays whatever the utility incurred in serving it. A separate docket, 44847, approved the Customer Identified Resource program, under which large customers pay for clean energy resources in exchange for renewable energy certificates and credit for the energy value.
The load behind those rules is real. The catalog records that Georgia Power has signed 29 customer commitments with new data center and industrial projects and holds regulatory approval to add 10 gigawatts of generation capacity over the next six years "while supporting rate stability for existing customers." Its list includes a 3.2 gigawatt data center project outside Savannah and the $12.6 billion vehicle plant near the same city. In North Carolina it lists a $10 billion data center campus in Richmond County, with the note that Duke Energy "expects each 1,000 MW data center to save existing customers almost $1 billion over the life of a 15-year contract."
## What this means for a business in Georgia or Florida
Take the tariffs at their word and they are protective. Minimum terms, take-or-pay clauses and exit fees exist so that a 50 MW customer cannot commission a substation and a share of a power plant and then leave the cost with everyone else. A well-drafted large load tariff is good news for the general service customer, and the Georgia Power language about rate stability for existing customers is the intent.
The mechanics still run through the rate base. Ten gigawatts of new generation is recovered over decades in rate cases, and the share that reaches a mid-sized business depends on how each docket allocates it. We reported the terms of the Savannah data center contract in [what the Georgia Power and OpenAI deal means for business bills](/news/georgia-power-openai-data-center-deal-business-bills), and the same logic applied to a state-owned utility in [Santee Cooper's large load rate](/news/santee-cooper-large-load-rate-south-carolina-business). In every case the ordinary business is a bystander to the docket and a participant in the outcome.
There is one part of the outcome a business controls. Demand charges and energy charges are set by what the meter records, and a site that generates part of its own power and shifts consumption off the peak window lowers both, whatever the commission decides about the next plant. That lever does not require a docket number, a 15-year contract or collateral. It requires twelve months of bills and an engineer.
## How we approach it
Our [commercial solar installation in Georgia](/commercial-solar-installation-georgia) work runs on that logic, and it includes the utility itself as a customer: we built [1.2 MW of ground-mounted solar across four Georgia Power facilities](/projects/georgia-power-1-2mw-ground-mount-solar). In Florida the same design questions apply under a different set of schedules, covered on our [commercial solar installation in Florida](/commercial-solar-installation-florida) page.
Where a tariff has a demand charge worth attacking, we add [commercial battery storage](/services/battery-storage) sized to the peak window rather than to the whole load, and we explain the arithmetic in [when commercial battery storage pays off](/insights/commercial-battery-storage-payback). The array, the storage and the interconnection are delivered under one [commercial solar EPC contract](/services/commercial-solar-epc), which keeps the schedule in our hands rather than the utility's queue.
If your business is in Georgia or Florida and your bill has grown faster than your consumption, the large load dockets are part of the reason and none of the remedy. [Run our calculator](/calculator) for a first estimate, then send us twelve months of utility bills and we will show you how much of the bill a system on your own site would take off the table.
### Frequently asked questions
**What is a large load tariff?**
A rate schedule written for a single very large new customer, typically a data center or a manufacturing campus, that sets conditions an ordinary business never sees: a minimum contract term, take-or-pay obligations for a share of the contracted capacity, exit fees if the customer leaves early and collateral to back the commitment. The Edison Electric Institute's August 2026 catalog describes them as designed to ensure large load customers pay their fair share of the plants and lines built to serve them.
**Which Southeast utilities have large load tariffs in force?**
According to the catalog, Florida Power & Light was approved in docket 20250011 for two schedules, Large Load Contract Service 1 and 2, for new or incremental load of 50 MW or more at an 85 percent load factor, effective January 1, 2026. Georgia Power was approved in docket 44280 to apply minimum billing and longer contract terms to customers with expected peak demand of 100 MW or more. Duke Energy Florida has filed an updated proposal in docket 20260064 under Senate Bill 484.
**Does a large load tariff apply to my business?**
Not unless your site draws 50 megawatts or more, which is a hyperscale data center or a very large plant. A warehouse, a hotel, a poultry complex or a mid-sized factory in Georgia or Florida stays on its general service or large power schedule. The tariffs matter to you indirectly: they decide how much of the cost of new generation and transmission is carried by the large customer and how much reaches the rest of the rate base.
**Why are utilities in Georgia and Florida building so much new capacity?**
Because the load is arriving. The catalog notes that Georgia Power has signed 29 customer commitments with new data center and industrial projects and has regulatory approval to add 10 gigawatts of generation over the next six years, and it lists a 3.2 gigawatt data center project outside Savannah among them. Nationally the catalog counts more than $1.03 trillion of announced projects and more than 70 gigawatts of connected load among its members.
**What can a mid-sized business do about rising fixed costs on its utility bill?**
Reduce the part of the bill it controls. Demand charges and energy charges both fall when a site generates part of its own power and shifts consumption off the peak window, and neither depends on how a commission allocates the cost of a new plant. A solar array sized to the load, with storage where the tariff rewards it, is the one instrument a business can apply on its own schedule while the large load dockets run their course.
---
## REAP grant scoring criteria: how USDA awards 100 points to a solar application
Source: https://www.owsolar.com/news/reap-grant-scoring-criteria-solar
Topic: REAP grant scoring criteria
Last updated: 2026-09-11
USDA scores a REAP renewable energy grant on a 100-point scale set out in 7 CFR 4280.121: 25 points for the energy the system replaces, 15 each for committed funds, first-time applicants and a payback under ten years, 10 for requests of $250,000 or less. The rule is being rewritten; the logic still guides sizing.
The **REAP grant scoring criteria** are public, precise and mostly ignored until an application is already written. They are set out in [7 CFR 4280.121](https://www.govinfo.gov/content/pkg/CFR-2025-title7-vol15/xml/CFR-2025-title7-vol15-sec4280-121.xml), which gives a renewable energy system application a maximum score of 100 points spread across seven categories, and they reward decisions that are made when a solar system is sized, long before the forms are filled in. With USDA rewriting the program regulation after rescinding the 2025 to 2027 funding notice in April, the current scoring rule is the clearest statement available of what the agency has valued, and the best guide to how to design a project for the next window.
The largest category is energy. Up to 25 points go to the energy a project generates, replaces or saves, split two ways. Ten points depend on quantity per grant dollar, with the full ten awarded at 50,000 BTUs of average annual energy generated or replaced per dollar requested, and a proportional share below that. Fifteen points depend on the share of the site's historical energy use the system replaces: more than 50 percent earns 15, more than 25 percent and up to 50 percent earns 10, and 25 percent or less earns 5.
## How does sizing change a REAP score?
The replacement band is where a design decision turns into points. A system that covers just over half of a farm's annual consumption earns the full 15. A system sized to cover a third earns 10. And the rule sets a ceiling: a project that would produce more than 150 percent of the site's historical use is scored as an energy generation project instead, which carries a fixed 10 points rather than the 15 available for replacement. The best-scoring band therefore runs from roughly half of annual use to one and a half times it.
Simple payback is the second category that sizing decides, worth another 15 points. A renewable energy system with a payback under 10 years earns the full 15, 10 to 15 years earns 10, 15 to 25 years earns 5, and beyond 25 years nothing. Payback here is project cost divided by annual energy savings, before the grant. A roof with good orientation on a site with a heavy bill pays back faster than a ground mount on a site with a light one, and the score follows.
The size of the request adds a tenth category. A renewable energy system application asking for $250,000 or less is eligible for 10 additional points, which is why the maximum is 100 for smaller requests and 90 for larger ones. For many single-site farm projects that threshold is reachable, and the ten points are worth the arithmetic.
## What the rest of the 100 points reward
Commitment of funds is worth up to 15. An applicant with written commitments for 100 percent of the matching funds earns all 15, one with commitments for between 50 and 100 percent earns a proportional share, and one at 50 percent or less earns nothing. A signed loan commitment or a bank letter is worth points as well as certainty.
Previous grantees and borrowers is worth 15 for an applicant that has never received a REAP grant or guaranteed loan, 5 for one that has not received one in the previous two fiscal years, and nothing for one that has. First-time applicants start with a 15-point head start over repeat ones.
Environmental benefits carry up to 5 points, awarded as 1, 3 or 5 for positive effects in one, two or all three of resource conservation, public health and the environment. Being an existing agricultural producer or rural small business is worth 5. And the state director and the administrator hold up to 10 discretionary points between them for priorities such as under-represented technologies, geographic diversity, under-served populations, disaster areas and areas of persistent poverty or economic decline.
## What this means for a farm or rural business in the Southeast
Read as a design brief, the rule says: size the system to replace more than half of the site's annual use and less than one and a half times it, keep the request at or under $250,000 where the project allows, line up the matching funds in writing before filing, and document the payback from twelve months of real bills. A poultry operation that has never applied, with a system in that band on a roof that pays back inside ten years and funds committed, can reach 75 points before environmental benefits and the state director's points are counted. Where the funding line falls varies by state and by year, but a file built that way leaves very little on the table.
The window is closed while USDA rewrites the regulation, as we reported in [what to prepare while USDA rewrites the REAP rules](/news/reap-funding-opportunity-rescinded-what-to-prepare), and the new rule may move the weights. The questions behind the points are unlikely to change. How much energy the system replaces, how fast it pays back and how much of the money is real are the questions any scoring system for this program has to ask, and a project engineered to answer them well will score under the next rule too.
## How we design to the score
Our [solar for poultry farms](/industries/poultry) work, over 4.8 MW installed, has followed the replacement band for years: the sizing we describe in [what 4.8 MW of poultry solar taught us](/insights/solar-for-poultry-farms-cost-and-results) lands between 26 and 35 kW per house because that is where a system covers most of a complex's consumption without tipping into generation. The [210 kW system across six breeder houses](/projects/poultry-210kw-6-house-breeder-solar) is a typical example of a project scoped to the site's bills rather than to its roof area.
The scoring document itself is described section by section in our [REAP application guide](/insights/usda-reap-grant-application-guide), and the program's terms, as they have run in past cycles, on our [REAP grant for solar](/incentives/usda-reap-grant) page. A grant reduces the basis on which the federal tax credit and depreciation are calculated, so the payback figure in the application and the after-tax figure on the owner's return are different numbers; we set out that interaction in [Section 179 solar depreciation](/incentives/section-179-solar), and the arithmetic belongs to the owner's accountant. A grant is competitive and is never assured.
If you run a farm or a rural business in Georgia, Florida or the Carolinas and want to know what your site would score under the current rule, [send us twelve months of utility bills](/contact). We will size a system inside the replacement band, calculate the payback and the energy per grant dollar, and give you the points before the window opens.
### Frequently asked questions
**How many points does a REAP grant application need to win?**
There is no passing score. Under 7 CFR 4280.121 applications are scored out of 100 and ranked against the others received in the same window, and funds go down the list until they run out. What matters is where a project lands relative to the competition, which is why the applications that do well tend to collect points in every category rather than relying on one. Where the cut-off falls varies by state and by year, so the aim is to leave no category at zero.
**What is the biggest scoring category for a solar REAP grant?**
Energy generated, replaced or saved, worth up to 25 points. Ten of those depend on how much energy the project produces per grant dollar, with the full ten awarded at 50,000 BTUs of average annual energy per dollar requested. The other 15 depend on what share of the site's historical energy use the system replaces: more than 50 percent earns 15 points, more than 25 percent earns 10, and 25 percent or less earns 5.
**Does a bigger solar system score better on a REAP application?**
Only up to a point. The replacement category rewards a system that covers more than half of the site's historical use, but the rule says a project that would produce more than 150 percent of that use is scored as an energy generation project instead, which carries a fixed 10 points rather than up to 15. A system sized between roughly 50 and 150 percent of the site's annual consumption sits in the best-scoring band.
**What is the simple payback test in REAP scoring?**
A renewable energy system with a simple payback under 10 years earns 15 points, 10 to 15 years earns 10, 15 to 25 years earns 5, and over 25 years earns nothing. Simple payback is the project cost divided by the annual energy savings, calculated without the grant. A system on a site with a high power bill and a good roof pays back faster and scores higher, which is one reason poultry and processing sites do well.
**Will the REAP scoring change when USDA publishes its new rule?**
It may. USDA rescinded the 2025 to 2027 funding notice on April 15, 2026 and said new applications will be accepted only after a revised regulation is published, so the weights above describe the rule as it stands in the 2025 Code of Federal Regulations. The underlying questions, how much energy the project replaces, how quickly it pays back and how much of the money is committed, are the ones any version of the rule is likely to ask.
---
## Anti-dumping duties on solar cells: what the Laos, India and Indonesia case means
Source: https://www.owsolar.com/news/anti-dumping-duties-solar-cells-india-indonesia-laos
Topic: anti-dumping duties solar cells
Last updated: 2026-09-09
Commerce set preliminary anti-dumping margins of 123.04% on solar cells from India, 35.17% from Indonesia and 22.46% from Laos, with cash deposits already collected at the border. The Laos final determination was scheduled for September 9 and the ITC injury vote for October 19. What that does to a module quote this fall.
The **anti-dumping duties on solar cells** from India, Indonesia and Laos reached another date on the calendar this week. The Commerce Department's fact sheet on its April 23, 2026 preliminary determinations scheduled the final antidumping determination for Laos "on or around September 9, 2026," with India and Indonesia scheduled earlier, on or around July 13. The preliminary margins Commerce set in April were 123.04 percent for India, 35.17 percent for Indonesia and 22.46 percent for Laos, and U.S. Customs has been collecting cash deposits on entries at those rates, adjusted to 107.77 percent for India and 22.06 percent for Laos to account for export subsidies already countervailed.
The case matters to a business buying a solar system in the Southeast because of how much of the market it touches. According to [Commerce's fact sheet](https://www.trade.gov/preliminary-determinations-antidumping-duty-investigations-crystalline-silicon-photovoltaic-cells), the United States imported about 2.30 gigawatts of covered cells and modules from India in 2024, worth $792.6 million, along with 1.80 gigawatts from Indonesia worth $415.2 million and 1.91 gigawatts from Laos worth $335.7 million. pv magazine, reporting the preliminary determination on April 27, put the three countries at $4.5 billion of solar imports in 2025, roughly two-thirds of the volume entering the country.
## Where does the India, Indonesia and Laos case go from here?
Commerce's antidumping findings are one half of the process. Countervailing duty determinations on the same products were issued earlier in the year, and pv magazine calculates the combined preliminary rates at approximately 234 percent for India, between 121 and 178 percent for Indonesia and roughly 103 percent for Laos, depending on the exporter.
The other half belongs to the International Trade Commission, which must find that the imports materially injured the domestic industry before duty orders can issue. pv magazine reports the ITC's final injury determination is scheduled for October 19, 2026, with final orders on October 26 if the vote is affirmative. The petition was brought by a coalition of domestic module manufacturers. Until orders issue, the cash deposits are security against a duty that has not been fixed, and importers who have been paying since April will either owe the final rate or receive the difference back.
## What this means for a commercial solar buyer in the Southeast
Module prices in a quote this fall already carry most of this case. Deposits have been collected for more than four months, and the supply chain has been moving toward other origins and toward domestic assembly since the petition was filed. The dates that could move prices again are the October 19 vote and, separately, December 4, when the Section 232 measures on imported modules take effect. We reported the details of that action, a minimum import price and an additional tariff, in [Section 232 solar module price floor](/news/section-232-solar-module-price-floor).
Two things follow for a project that will be built in 2026 or early 2027. The first is to fix the module supply in the contract: origin, model, price and delivery window, in writing, before the next date on the calendar. The second is to keep the module line in proportion. Modules are one component of an installed cost that also includes racking, inverters, wiring, structural work and interconnection, and our analysis of [commercial solar cost per kW in Georgia](/insights/commercial-solar-cost-per-kw-georgia) sets out how the pieces add up. A change in module price moves the total by a fraction of its own percentage.
There is also an overlap worth using. The supplier certification of origin that a careful buyer requests to manage tariff exposure is close to the certification the federal investment tax credit now requires under the prohibited foreign entity rules. One request to the supplier covers both, and the conditions of the credit are set out on our [federal solar tax credit page](/incentives/federal-solar-tax-credit).
## How we buy modules for a project
We build under a single [commercial solar EPC contract](/services/commercial-solar-epc), and module procurement sits inside it rather than being passed through as a variable. The [117 kW ground-mounted system at Swainsboro Supply Company](/projects/swainsboro-supply-117kw-ground-mount-solar) saves the customer about $1,800 a month on its power bill. That is the number that decides whether a project makes sense, and it does not move with a preliminary margin.
For a plant or a warehouse weighing a system now, the guidance is plain. Get the quote, fix the supply, and let the tariff calendar run on its own. Our page on [solar for manufacturing facilities](/industries/manufacturing) explains how a production load pairs with an array, and [our calculator](/calculator) gives a first estimate of size and savings. Send us twelve months of utility bills and we will price the system with the module origin and delivery window written into the offer.
### Frequently asked questions
**What are the anti-dumping duties on solar cells from India, Indonesia and Laos?**
On April 23, 2026 the Commerce Department preliminarily found that crystalline silicon photovoltaic cells, whether or not assembled into modules, were sold in the United States below fair value. The preliminary dumping margins are 123.04 percent for India, 35.17 percent for Indonesia and 22.46 percent for Laos, according to the Commerce fact sheet, and U.S. Customs collects cash deposits at those rates, adjusted for export subsidies in the case of India and Laos, on entries made since the determination.
**Are these duties final?**
Not yet. Commerce scheduled its final antidumping determinations for on or around July 13, 2026 for India and Indonesia and September 9, 2026 for Laos. The International Trade Commission then has to find that the imports injured the domestic industry, and pv magazine reports that vote is set for October 19, 2026, with orders to follow on October 26 if the finding is affirmative. Until orders issue, the cash deposits are security rather than a settled duty.
**How much of the U.S. module supply do these three countries represent?**
A large share. Commerce's fact sheet lists 2024 imports of about 2.30 gigawatts from India, 1.80 gigawatts from Indonesia and 1.91 gigawatts from Laos, worth roughly $1.54 billion together. pv magazine reports that in 2025 the three countries accounted for $4.5 billion in solar imports, about two-thirds of the volume entering the country. That is why the case reaches module prices for buyers who never see a customs form.
**Will module prices rise for my project in Georgia or Florida?**
Duties on one group of exporters push buyers toward other origins, including domestic assembly, and that shifts prices across the market rather than only for the goods named. Since April, importers of cells and modules from the three countries have been posting cash deposits, so much of the effect is already in the quotes you see today. The next dates that could move prices again are the October 19 injury vote and the December 4 start of the separate Section 232 measures.
**How do I protect a project budget from tariff changes?**
Fix the module supply, origin and price in the construction contract, with the delivery date inside the window the supplier has priced. Ask for the supplier certification of origin at the same time, because the same document supports the federal credit's foreign entity test. And weigh the whole project cost rather than the module line alone, since modules are one part of an installed cost that also includes racking, inverters, electrical work and interconnection.
---
## North Carolina solar RFP pause: why a business should not wait for October 5
Source: https://www.owsolar.com/news/north-carolina-solar-rfp-pause-october-ruling
Topic: North Carolina solar RFP pause
Last updated: 2026-09-09
Duke Energy's 2026 solar and battery storage RFP has been paused since an April 23 order from the North Carolina Utilities Commission, and a ruling on the challenge is now expected October 5. A business in Duke territory does not have to wait on it: the project behind its own meter is not part of the procurement.
The **North Carolina solar RFP pause** has a new date on it. According to an [August 28 account by the Southern Alliance for Clean Energy](https://cleanenergy.org/news/a-chairmans-order-a-lawsuit-and-a-ticking-clock-inside-the-fight-over-north-carolinas-2026-solar-rfp/), the North Carolina Utilities Commission order of April 23, 2026 that paused Duke Energy's 2026 solar and battery storage request for proposals is now expected to be ruled on around October 5, after the Alliance and other parties sued the Commission on June 18 and oral arguments were heard on August 3. The RFP is a competitive procurement the Commission itself required in its 2024 Carbon Plan and Integrated Resource Plan order, and the Alliance writes that the pause "froze a procurement that clean energy advocates, developers, and even some large customers had been planning around for over a year."
For a business in Duke territory the case is worth following for what it says about future power costs. It is also worth understanding what it does not touch, which is the project a business can build on its own roof or land.
## What did the April 23 order do?
The order, issued by Commissioner Brawley, deferred Duke's 2026 solicitation for solar and storage capacity that would have been contracted under the Carbon Plan. The lawsuit filed on June 18 argues, in the Alliance's words, that "the deferral order violated multiple statutes governing the Commission's actions, as well as the North Carolina Constitution's due process and access-to-judicial-review guarantees." The Commission heard oral arguments on August 3 and, the Alliance reports, "the case is now delayed to October 5, 2026 while the parties await the NCUC's ruling."
The procurement sits inside a larger plan. Duke's 2026 Carolinas resource plan, which we covered in [Duke Energy's Carolinas resource plan for solar and storage](/news/duke-energy-carolinas-resource-plan-solar-storage), calls for about 18.5 GW of solar and 13 GW of battery storage by 2041. The 2026 RFP was one of the first purchases toward that total.
## What this means for a business's power bill in North Carolina
The Alliance's argument for urgency is about fuel. "Every megawatt of solar that gets delayed, shrunk, or rolled into a future," it writes, "is a megawatt of gas that takes its place instead. That has two consequences for customers: it raises the system's exposure to volatile gas prices, and it works against the least-cost planning standard." Fuel costs pass through to customers, and commercial and industrial accounts carry a large share of them.
That effect arrives slowly, through rate cases and fuel filings, over years. The rate case Duke Energy Progress settled this summer, which we reported in [what the Duke Energy Progress settlement means for a North Carolina business](/news/duke-energy-progress-rate-settlement-north-carolina-business), would raise rates in two steps from January 1, 2027. Whatever the Commission decides on October 5 will reach a bill later still. A business that wants to change its power cost on a shorter timeline has one instrument that runs on its own schedule, and that is generation and storage it owns behind its own meter.
A customer-owned system is not part of the RFP. It goes through Duke's interconnection procedures as a generating facility on the customer's side of the meter, and nothing in the April order or the lawsuit changes that path. The federal investment tax credit is claimed on the owner's own return, and the credit's construction and placed-in-service deadlines, described on our [federal solar tax credit page](/incentives/federal-solar-tax-credit), reward a project that starts in 2026 rather than one that waits for the utility's plan to settle.
## How we build in North Carolina
Our [commercial solar installation in North Carolina](/commercial-solar-installation-north-carolina) is engineered by a professional engineer licensed in the state and an electrical contractor holding the state's unlimited classification since 1992, with interconnection applications prepared in the format Duke's process expects. We deliver the array, the electrical work and the interconnection under one [commercial solar EPC contract](/services/commercial-solar-epc), so the timeline is ours to manage rather than a chain of subcontractors.
Where the load justifies it we add [commercial battery storage](/services/battery-storage) to move consumption off the peak hours the tariff prices highest, which is the same arbitrage the utility is trying to buy at scale. The largest example of the combination in our portfolio is the [1.267 MW rooftop system with 55,000 pounds of batteries at Samsonite and TUMI](/projects/samsonite-tumi-1267kw-rooftop-solar-battery) in Vidalia, built and commissioned under a single contract.
If your business is in Duke Energy Carolinas or Duke Energy Progress territory and you would rather not wait for October, [send us twelve months of utility bills](/contact). We will size a system for your site, run the numbers against your current tariff and the rates now scheduled for 2027, and tell you what the project does to your bill on a timeline you control.
### Frequently asked questions
**What is the North Carolina solar RFP pause?**
On April 23, 2026 a North Carolina Utilities Commission order paused Duke Energy's 2026 request for proposals for solar and battery storage, a competitive procurement the Commission itself required in its 2024 Carbon Plan and Integrated Resource Plan order. The Southern Alliance for Clean Energy and other parties sued on June 18, arguing the deferral violated state statutes and the state constitution. Oral arguments were held August 3, and a ruling is now expected around October 5, 2026.
**Does the RFP pause affect a solar system on my own building in North Carolina?**
No. The RFP is how Duke buys utility-scale solar and storage from developers to serve the whole system. A system on your roof or land, connected behind your meter, is a customer-owned generating facility that goes through Duke's interconnection procedures and is not part of the procurement. The pause changes the utility's supply plan and, over time, what its power costs. It does not change what you may build.
**Why does a delay in utility-scale solar matter to a business's power bill?**
Because the alternative the utility turns to has a different cost profile. The Southern Alliance for Clean Energy argues that every megawatt of solar delayed or shrunk is a megawatt of gas that takes its place, which raises the system's exposure to volatile gas prices and works against least-cost planning. Fuel costs flow through to customer bills, and commercial and industrial customers carry a large share of them.
**What would an October 5 ruling change?**
It would settle whether the Commission's deferral order stands or the procurement resumes on the schedule the Carbon Plan set. Either way the outcome reaches a business's bill only through future rate cases and fuel filings, over years. A business that wants control over its power cost sooner than that has one instrument available on its own timeline, which is generation and storage it owns.
**What can a business in Duke Energy territory do now?**
Have the project on its own site engineered and priced. A commercial solar system with or without a battery is sized from twelve months of bills, designed by a licensed engineer, submitted through the utility's interconnection process and built under one contract, and none of those steps wait on a Commission ruling. The federal investment tax credit and depreciation are claimed on the owner's return, and the credit's own deadlines reward starting in 2026.
---
## Prohibited foreign entity rules for solar: the 40% test a 2026 project must pass
Source: https://www.owsolar.com/news/prohibited-foreign-entity-rules-solar-credit
Topic: prohibited foreign entity rules solar
Last updated: 2026-09-12
A commercial solar project that begins construction in 2026 keeps the federal credit only if at least 40% of its manufactured-product cost comes from suppliers that are not prohibited foreign entities. Storage needs 55%. IRS Notice 2026-15 explains how the ratio is counted and what paperwork proves it.
The **prohibited foreign entity rules for solar** now have numbers attached. Under [IRS Notice 2026-15](https://www.irs.gov/pub/irs-drop/n-26-15.pdf), a commercial solar facility that begins construction in calendar year 2026 includes "material assistance from a prohibited foreign entity," and therefore loses the federal clean electricity credit, if its material assistance cost ratio is below 40 percent. For energy storage that begins construction in 2026 the floor is 55 percent. The notice is the interim guidance Treasury and the IRS issued to implement the restrictions Congress added in the July 4, 2025 tax law, and it says taxpayers may rely on it until 60 days after proposed regulations are published.
The ratio itself is simple to state. Take the total direct cost of the manufactured products in the facility, subtract the direct cost attributable to prohibited foreign entities, and divide by the total. What makes it a project question rather than a tax question is where the cost sits. In the notice's own worked example for a ground-mounted array, photovoltaic modules carry 65.8 percent of the assigned cost. The module decides the test.
## How is the material assistance cost ratio calculated?
The notice lets a taxpayer identify manufactured products and their components using the same tables already used for the domestic content bonus, and to assign each product a cost percentage from those tables rather than from invoices. Until the Treasury publishes new safe harbor tables, which the law requires by December 31, 2026, the tables in Notice 2025-08 serve that purpose.
The second input is a certification from each supplier. Under the notice it must state the share of the product's direct cost that was not produced or manufactured by a prohibited foreign entity, carry the supplier's employer identification number, be signed under penalties of perjury, and be retained by both supplier and taxpayer for at least six years. If the buyer knows, or has reason to know, that a product was made by a prohibited foreign entity, every dollar of that product counts against the ratio, whatever the certification says.
For storage the arithmetic is tighter. Energy News, in a September 2 analysis of the notice, points out that the federal safe harbor tables already assign 52 percent of a grid-scale battery system's total direct cost to the cells alone. With a 55 percent floor in 2026, and Energy News reporting a 75 percent floor for storage that begins construction in 2030 or later, the origin of the cells settles most of the question before the cabinet is bolted down.
## What this means for a business planning a system in the Southeast
The 30 percent credit is claimed on the owner's return, so the ratio is the owner's number to defend. A facility in Georgia or the Carolinas that signs a contract this fall for construction in 2026 wants three things in the file before the modules ship: the bill of materials with assigned cost percentages, the supplier certifications in the form the notice describes, and a written record of when construction began. The notice is explicit that its earlier begin-construction guidance for the credit's termination dates, Notice 2025-42, does not decide the begin-construction question for these rules, so the date needs its own support.
There is a separate federal action that has caused some confusion, and it is worth stating plainly what it does not do. Executive Order 14421 of August 26, 2026 declared a national emergency over foreign-produced bulk-power system equipment and gave the Secretary of Energy authority to prohibit acquisitions and installations initiated after that date. The order defines the bulk-power system around transmission rated at 69,000 volts and above, and its definition expressly excludes facilities used in the local distribution of electric energy. A rooftop or ground-mounted system behind a business's meter, connected at distribution voltage, is outside that definition as written. The Department of Energy has 120 days to publish implementing rules, and it opened a request for information on September 9 with comments due October 9.
The two programs pull in the same direction. A project that documents where its modules, inverters and cells were made satisfies the tax test and is ready for whatever the energy rules ask.
## How we handle the sourcing question
We build under a single [commercial solar EPC contract](/services/commercial-solar-epc), which means the same people who specify the equipment assemble the certification file. On the [1.267 MW Samsonite and TUMI roof in Vidalia](/projects/samsonite-tumi-1267kw-rooftop-solar-battery) the module, inverter and racking supply was fixed at contract, and that is the point at which the cost ratio is decided. The notice's tables say the module carries most of the weight, so module selection is where the time goes, with the supplier certification requested before the purchase order is signed rather than after.
For [commercial battery storage](/services/battery-storage) we set out the cell origin and its cost share in the proposal so the customer's tax adviser can run the 55 percent test on real numbers rather than assumptions. The credit rules themselves, including the construction and placed-in-service deadlines that sit alongside this test, are covered on our [federal solar tax credit page](/incentives/federal-solar-tax-credit) and in our report on the [2027 deadline for the commercial solar tax credit](/news/commercial-solar-tax-credit-deadline-obbba-rules). How the credit interacts with depreciation is in [stacking the solar tax credit with Section 179](/insights/stacking-solar-tax-credit-section-179).
If you are planning a system in [Georgia](/commercial-solar-installation-georgia) or elsewhere in the Southeast for construction in 2026, the ratio is easier to clear now than it will be in 2027. [Send us twelve months of utility bills](/contact) and we will size the system, price it with equipment that is documented to the notice's standard, and show you the cost ratio on the proposal.
### Frequently asked questions
**What are the prohibited foreign entity rules for a commercial solar project?**
They are conditions added to the federal clean electricity credits by the July 2025 tax law. A solar facility or battery that begins construction after December 31, 2025 loses the credit if it includes material assistance from a prohibited foreign entity, which is measured as a cost ratio. IRS Notice 2026-15 sets out how the ratio is calculated, what supplier certifications count, and which safe harbors a taxpayer may rely on until final regulations arrive.
**What percentage of a solar project must come from non-prohibited suppliers in 2026?**
For a solar facility that begins construction in calendar year 2026, the material assistance cost ratio cannot be less than 40 percent, according to the worked examples in Notice 2026-15. For energy storage that begins construction in 2026 the floor is 55 percent. Both floors rise for construction that begins in later years, so a project that starts sooner faces a lower bar than the same project started in 2028 or 2030.
**What paperwork does the IRS expect from my equipment suppliers?**
A certification from the supplier stating the share of the product's direct cost that was not produced by a prohibited foreign entity, or that the product was not produced by one at all. Under the notice the certification must carry the supplier's employer identification number, be signed under penalties of perjury, and be kept by both the supplier and the taxpayer for at least six years. A buyer who knows a certification is wrong cannot rely on it.
**Does the August 2026 bulk-power system executive order affect a rooftop or ground-mount system at my business?**
Not directly, on the text of the order. Executive Order 14421 covers equipment used in the bulk-power system, defined around transmission at 69,000 volts and above, and it expressly excludes facilities used in local distribution. A behind-the-meter commercial system connected at distribution voltage sits outside that definition. The Department of Energy has 120 days from August 26 to publish implementing rules, and those are worth reading when they appear.
**Can I still claim the credit if my project began construction in 2025?**
The material assistance test applies to facilities and storage that begin construction after December 31, 2025. A project that properly began construction in 2025 is outside the ratio test, although the other conditions on the credit still apply, including the placed-in-service and construction deadlines in the same law. Whether a given project began construction in time is a question for your tax adviser, and the IRS has said its earlier begin-construction notice does not settle it for this purpose.
---
## Puerto Rico utility-scale battery storage comes online: 440 MWh at Jobos
Source: https://www.owsolar.com/news/puerto-rico-utility-scale-battery-storage-jobos
Topic: Puerto Rico utility-scale battery storage
Last updated: 2026-09-09
LUMA announced on September 4 that the Jobos solar and battery project in Guayama has been energized: 80 MW of solar with a 110 MW, 440 MWh battery that shifts daytime output into the evening peak. For an island business the lesson is in the design: four hours of storage beside the generation.
**Puerto Rico utility-scale battery storage** has moved from plan to hardware. [LUMA announced on September 4](https://lumapr.com/news/luma-and-aes-announce-energization-of-puerto-ricos-first-utility-scale-battery-storage-project/?lang=en) that the Jobos solar and battery energy storage project in Guayama, on the island's south coast, has been energized. The project pairs 80 MW of solar generation with a battery rated at 110 MW and 440 MWh, a four-hour system, and LUMA describes it as Puerto Rico's first utility-scale battery storage project. Testing is under way and commercial operation is targeted for the fourth quarter of 2026.
LUMA operates the transmission and distribution system the plant connects to; the generation and storage were built by a utility-scale developer. The announcement describes the battery's job in plain terms: store the solar energy produced during the day and deliver it in the evening peak, and in doing so reduce the load shedding that occurs when available generation cannot cover demand. LUMA puts the supported consumption at roughly 25,000 homes, rising to about 40,000 at midday.
## What does a four-hour battery change for Puerto Rico's grid?
The island's shortfalls have often been generation shortfalls, hours in which demand exceeded what the plants could deliver, and a battery that shifts four hours of afternoon solar into the evening addresses that hour by hour. Esther Serra, LUMA's Senior Director of Renewable Energy Projects, is quoted in the announcement: "This new capacity helps ensure available generation can be transmitted reliably, strengthening operational stability."
The design choice worth noticing is the ratio. The battery's 110 MW is larger than the 80 MW solar plant beside it, and its 440 MWh means it can discharge at full power for four hours. That is a system built to move energy across the day rather than to smooth a few minutes of cloud, and it is the same logic, at a different scale, that governs a commercial storage project.
## What this means for a business on an island grid
A utility battery reduces one kind of outage. It does not reach the others. A feeder taken down by wind, a substation fault, a line lost in a storm, none of these are solved by capacity at Guayama, and a hotel, a port or a cold-storage facility that must keep operating through them still needs generation and storage on its own side of the meter. What the utility battery does is make the grid a steadier partner for that system: fewer generation-driven interruptions to ride through, and a cleaner evening profile to plan around.
The economics that make storage worthwhile for the island utility apply on a smaller scale to its commercial customers. Electricity produced on a roof at midday is worth most when it is used in the evening, and a battery sized to the site's critical loads, recharged daily by the array, turns a solar system into a resilience asset. We set out how we specify that combination in our page on [commercial microgrid installation](/services/micro-grids), what sets the price in [what drives the cost of a commercial microgrid](/insights/commercial-microgrid-cost), and the way runtime is calculated from critical loads rather than from the whole property in [commercial battery storage installations](/services/battery-storage).
Financing has been moving as well. We reported in late August on a [Puerto Rico battery storage loan for island resilience](/news/puerto-rico-battery-storage-loan-island-resilience), and the arrival of the first utility-scale system is the other half of that picture.
## What we have built in the Caribbean
Our island work goes back to the fuel economics that made solar pay in the Caribbean before it paid on the mainland. The [800 kW rooftop system at the Westin Dawn Beach Resort and Spa in St. Maarten](/projects/westin-dawn-beach-resort-800kw-solar) remains our largest island installation, and the [451.5 kW ground-mounted array for the Virgin Islands Port Authority in St. Thomas](/projects/virgin-islands-port-authority-451kw-solar) was built for a facility that cannot close when the weather turns. Both were engineered for hurricane wind loads, and both are described on our [commercial solar installation in the Caribbean](/commercial-solar-installation-caribbean) page.
What has changed since those projects is storage. [BatteryCube®](/batterycube), our own line of pad-mounted cabinets built around CATL cells, lets us give a resort or a port the same daytime-to-evening shift the Jobos battery gives the island, sized to the circuits that matter. For hotels in particular, the case is set out in [solar for hotels and resorts](/industries/hospitality), where guest comfort during an outage is a revenue question as much as a safety one.
If you operate a property in Puerto Rico, the Virgin Islands or elsewhere in the Caribbean and want to know what four hours of storage would mean for your own site, [send us twelve months of utility bills and a list of the loads that must stay on](/contact). We will size the array and the battery to those loads and show you the runtime, the savings and the cost side by side.
### Frequently asked questions
**What is the Jobos battery storage project in Puerto Rico?**
It is Puerto Rico's first utility-scale battery energy storage system, located in Guayama on the island's south coast, paired with an 80 MW solar plant. According to LUMA's September 4, 2026 announcement the battery is rated at 110 MW and 440 MWh, a four-hour system, and it was energized for testing with commercial operation targeted for the fourth quarter of 2026. LUMA operates the transmission and distribution grid it connects to; the plant was built by a utility-scale developer.
**What does a four-hour battery do for Puerto Rico's grid?**
It stores solar energy produced in the middle of the day and delivers it in the evening, when demand peaks and the sun is down. LUMA says the capacity helps reduce the load shedding that happens when available generation cannot meet demand, and describes it as supporting the consumption of roughly 25,000 homes, rising to 40,000 at midday. In the utility's words, the new capacity helps ensure available generation can be transmitted reliably.
**Does a utility battery mean my hotel or plant no longer needs its own?**
It reduces one kind of outage, the generation shortfall, and does nothing for the others: a line down in a storm, a substation fault, a feeder taken out by wind. A business that needs power through those events still needs generation and storage on its own side of the meter, sized to its critical loads. The utility battery makes the grid a better partner for that system. It is not a substitute for it.
**How large a battery does a commercial site in the Caribbean need?**
It depends on which loads must stay on and for how long, which is an engineering question answered from the site's interval data and a list of critical circuits. Refrigeration, water pumping, a few guest floors and communications are a smaller load than the whole property, and a battery sized to them, recharged by the roof each day, runs far longer than one asked to carry everything. Four hours of storage is the utility's answer for the island; the right answer for a resort is site-specific.
**What have you built in the Caribbean?**
Our largest island installation is the 800 kW rooftop system at the Westin Dawn Beach Resort and Spa in St. Maarten, and we built the 451.5 kW ground-mounted array for the Virgin Islands Port Authority in St. Thomas. Both were designed for hurricane exposure and for the economics of imported fuel. We now pair that experience with BatteryCube storage and microgrid controls for sites that need to keep operating when the grid does not.
---
## Georgia Power real-time pricing docket: what the PSC heard on September 1
Source: https://www.owsolar.com/news/georgia-power-real-time-pricing-docket-57171
Topic: Georgia Power real-time pricing docket
Last updated: 2026-09-08
The Georgia Public Service Commission's calendar lists Docket No. 57171, RTP Revenue Credit and Allocation Methodology, for Georgia Power Company, with a first hearing on September 1, 2026. The docket decides how real-time pricing revenue is credited and allocated, and that is an accounting question with a bill attached.
The **Georgia Power real-time pricing docket** now has a number and a hearing behind it. The Georgia Public Service Commission's [calendar lists Docket No. 57171](https://psc.ga.gov/agendas-calendars/commission-calendar/docket-no-57171-rtp-revenue-credit-and-allocation-methodology-hearing-9-1-2026/), titled RTP Revenue Credit and Allocation Methodology, with a hearing on September 1, 2026 at 9:35 a.m. following the Commission's 9:30 administrative session, and it names Georgia Power Company as the utility. The title is the substance. The Commission is examining how the revenue Georgia Power collects under its real-time pricing tariffs is credited, and how the resulting amounts are allocated.
That sounds like accounting, and it is. It is also the kind of accounting that decides which customers end up carrying which costs, which is why a business on a demand tariff or on RTP in Georgia should know the docket exists before the Commission decides anything at all.
## What is real-time pricing, and who is on it?
Real-time pricing is the family of Georgia Power tariffs under which a large customer's price for energy moves hour by hour rather than following a flat or seasonal schedule. Prices are posted ahead of time, and a customer with flexible load can shift or shed consumption when the posted hour is expensive and run harder when it is cheap. The accounts that choose it are industrial and large commercial: plants with processes that can be staged, cold storage that can precool, facilities with a load they can move.
How the revenue those accounts pay is credited within the utility's books, and how it is then allocated, is the question Docket 57171 asks. Georgia Power's own tariff documents set out the eligibility and the mechanics, and they are the place to check which schedule a given meter is on.
## What is the Commission deciding?
Nothing yet. On September 1 it held the first hearing in the docket. The background was set out in July by [The Current GA](https://thecurrentga.org/2026/07/08/georgia-regulators-launch-investigation-into-data-center-energy-costs/), which reported that the Commission had opened an investigation into the real-time pricing methodology under which large power users such as data centers pay for fuel, a mechanism separate from the fuel rate charged to residential and small business customers, with a first round of hearings expected in September. The investigation came out of an agreement reached with consumer advocates during the fuel rate proceedings. Ja'Mae Rooks of the Georgia Conservation Voters Education Fund put the question plainly in that report: Georgians deserve to understand exactly who is paying for the massive growth in electricity demand from data centers, and who isn't. The September 1 date on the Commission's calendar matches that schedule. The filings, the testimony and any further hearing dates sit on the Commission's docket system, and the outcome will be a methodology: a rule for how RTP revenue is credited and how the amounts that result are allocated among Georgia Power's customers.
The reason that matters to a facility that has never heard of RTP is that allocation is arithmetic with a fixed total. A dollar credited one way is a dollar someone else does not pay, and a dollar allocated to one group of customers is a dollar not allocated to another. Commercial customers sit in the middle of that sum, large enough to be a class of their own and too small to negotiate their own contract. This docket sits alongside the larger story we covered in our note on [the Georgia Power OpenAI data center deal](/news/georgia-power-openai-data-center-deal-business-bills): both are about how the costs and revenues of a fast-changing load mix get shared out.
## What this means for a facility in Georgia
Two things hold regardless of how the docket ends. Hourly price exposure rewards a facility that can move or reduce load in the expensive hours. A charge allocated by consumption rewards a facility that buys fewer kilowatt-hours from the grid in the first place. Both point the same way.
A rooftop array reduces the kilowatt-hours bought at any price. Storage moves consumption out of the hours that cost most, which is the same mechanism that earns against demand charges, as we set out in [when commercial battery storage pays off](/insights/commercial-battery-storage-payback). A facility that has both watches a real-time price spike from the outside. The order of magnitude is set by the load: a 300 kW peak that can be shaved or shifted is a different conversation from a 3 MW process line, and the interval data tells you which one you have before anyone quotes equipment.
The constraint is worth stating plainly. We do not set tariffs, we do not predict Commission decisions, and any change to how RTP revenue is allocated will be decided in that hearing room, not by a contractor. What a business controls is its own load shape and its own generation, and those are the two things the docket cannot change.
## How we approach tariff exposure
We read the customer's actual rate schedule and twelve months of interval data before we size anything, because the value of solar and storage on a Georgia Power account depends on which schedule the meter is on and when the load happens. Our [commercial solar installation work in Georgia](/commercial-solar-installation-georgia) is built around that reading, and our [commercial battery storage installations](/services/battery-storage) are sized from the interval data rather than from a nameplate. Where the bill also carries a power factor penalty, that is a separate line and a separate fix, covered under [power factor correction](/services/power-factor-correction). We have built for Georgia Power itself, [1.2 MW of ground-mount solar across four of its sites](/projects/georgia-power-1-2mw-ground-mount-solar), and the discipline of reading the tariff first is the same whether the customer is the utility or one of its accounts.
If your Georgia facility is on real-time pricing or on a demand schedule and you want to know how exposed it is to the hours and the allocations this docket is about, [send us twelve months of bills and your interval data](/contact) and we will map the exposure and show what solar and storage would do to it.
### Frequently asked questions
**What is Georgia PSC Docket 57171?**
It is the Georgia Public Service Commission proceeding titled RTP Revenue Credit and Allocation Methodology, opened for Georgia Power Company. The Commission's calendar lists its first hearing on September 1, 2026 at 9:35 a.m., after the 9:30 administrative session. As the title says, it concerns how the revenue Georgia Power collects under its real-time pricing tariffs is credited and how the resulting amounts are allocated. The docket is open and no decision has been issued.
**What is Georgia Power real-time pricing?**
Real-time pricing, or RTP, is the family of Georgia Power tariffs under which a large customer's energy price changes hour by hour rather than following a flat or seasonal schedule, with prices posted ahead of time so the customer can shift or reduce load in expensive hours. It is used by industrial and large commercial accounts with flexible load. Eligibility, the pricing mechanics and the current schedules are set out in Georgia Power's own tariff documents, not here.
**Will this docket change my electric bill in Georgia?**
Nobody can say until the Commission rules, and we will not guess at a number. What the docket decides is a methodology for crediting and allocating RTP revenue, and allocation questions determine how costs are shared among groups of customers. A commercial account can therefore be affected without being on RTP at all. The practical position is to know which rate schedule your meter is on and how exposed your load is to the hours and charges involved.
**What can a business on a Georgia Power demand tariff do while the docket is open?**
Get twelve months of interval data from the utility and find out when your peaks and your most expensive hours actually fall. Storage can move consumption out of those hours, and a rooftop array reduces the kilowatt-hours you buy at any price. Both work regardless of how the Commission decides this docket. We read the rate schedule and the interval data before sizing anything, because the value of either measure on a Georgia Power account depends on both.
---
## USDA PART Energy Program loans: $410 million window opens September 8
Source: https://www.owsolar.com/news/usda-part-energy-program-loans-window
Topic: USDA PART Energy Program loans
Last updated: 2026-09-08
The Rural Utilities Service is taking letters of interest from September 8 to October 9 for its Powering Affordable Reliable Technology loans: $410 million for rural renewable generation, storage, microgrids and grid work, open to for-profit companies as well as cooperatives and utilities.
The **USDA PART Energy Program loans** opened to letters of interest on September 8, 2026, and the window closes on October 9. The Rural Utilities Service, a Rural Development agency of the U.S. Department of Agriculture, published its [notice of funding opportunity for the Powering Affordable Reliable Technology Energy Program](https://www.federalregister.gov/documents/2026/08/04/2026-15795/notice-of-funding-opportunity-for-the-powering-affordable-reliable-technology-part-energy-program) in the Federal Register on August 4, 2026, soliciting letters of interest for fiscal year 2026 loans under docket RUS-26-ELECTRIC-0232. According to [GovMarketNews's report on the program](https://govmarketnews.com/usda-part-rural-energy-program/), $410 million is available in loans of $1 million to $100 million per project, covering up to 75 percent of total project costs, with a portion of each loan forgivable.
The list of what the money can build is the reason a business owner in rural Georgia or the Carolinas should read past the headline. The report names renewable energy infrastructure, energy storage systems, microgrids, power lines, transformers and grid modernization, and it names for-profit organizations among the eligible applicants, alongside state and local governments, tribes, nonprofits, electric cooperatives and certificated utilities.
## What is the PART Energy Program?
It is a loan program run by the Rural Utilities Service, the same agency that has financed rural electric cooperatives for decades under 7 U.S.C. 901, the statute the Federal Register notice cites. The notice itself is short: it announces that the agency is soliciting letters of interest, sets out the application process and deadlines, and points to the full notice of funding opportunity on the agency website and grants.gov. It also carries a line worth noting for anyone planning ahead: in future years this opportunity will be announced only on the agency website and on grants.gov, without a Federal Register notice.
The terms reported for this round are a $1 million floor and a $100 million ceiling per project, a loan covering up to 75 percent of total cost with the recipient supplying 25 percent in cash or equity, and, for operating utilities, system loans of up to 100 percent where the agency finds that feasible. Once a letter of interest is accepted, the applicant receives an invitation to proceed and has 60 days to file the full application.
## Is this the same as a REAP grant?
No, and the difference is the useful part. The [USDA REAP grant for solar](/incentives/usda-reap-grant) is the program most farm and rural small-business owners already know: grants and guaranteed loans for projects at the scale of a poultry complex roof or a rural plant, with an application we have walked through in our [REAP application guide](/insights/usda-reap-grant-application-guide). PART sits above it. The $1 million floor rules out the typical single-farm array and rules in the projects that a growing rural facility, a cooperative or a group of operations might build together: storage sized for a substation, a microgrid around a processing plant, generation and grid work that improve reliability for a whole feeder.
A 450 kW rooftop on a broiler farm is REAP territory. A multi-megawatt storage and generation project serving a rural industrial site, or a cooperative building storage and microgrid capability for its members, is the kind of work the PART list describes.
## What this means for a facility in the Southeast
Rural does not mean small in the Southeast. Poultry complexes, food processing plants, distribution centers off the interstate and the cooperatives that serve them carry loads that run into the megawatts, and they sit in exactly the counties this program is written for. Two routes are open. A for-profit company with a rural project large enough to clear the floor can file its own letter of interest. A business served by an electric membership cooperative can raise the project with the cooperative, since distribution and generation-and-transmission cooperatives are on the eligible list and a storage or microgrid project that improves reliability on a feeder serves both the cooperative and the member.
Either way the constraint is the same. These are loans, awarded competitively by the agency under its own criteria, and a letter of interest is a first step rather than an approval. The financial sections belong to the applicant and its lender. The technical sections are where a project is won or lost on paper, and they are the part that can be started today.
The reliability angle is not incidental. A rural facility that loses power in a storm loses production, and the [commercial microgrid installation](/services/micro-grids) and [commercial battery storage](/services/battery-storage) work we do is built around keeping defined critical loads running when the grid does not. Those are the project types the program names, and they are the ones a lender understands once the load data is on the table.
## How we support a letter of interest
We prepare the technical package: the load analysis from interval data, the generation and storage sizing, the interconnection detail and single-line diagram, the microgrid design where one applies, and an energy estimate that a reviewer can check. That is the same discipline we bring to a REAP application, applied at a larger scale. Our [solar for poultry farms](/industries/poultry) work and the [1.2 MW of ground-mount solar we built across four Georgia Power sites](/projects/georgia-power-1-2mw-ground-mount-solar) are the two ends of the size range this program spans, and the engineering is the same at both.
The window is one month wide. If your facility or your cooperative has a rural energy, storage or microgrid project in mind, [send us twelve months of utility bills and any interval data you have](/contact), and we will tell you within days whether the project is PART-sized, REAP-sized or both, and what the technical package for a letter of interest would contain.
### Frequently asked questions
**When is the PART Energy Program letter of interest deadline?**
Letters of interest are accepted from September 8 to October 9, 2026, according to GovMarketNews's summary of the program. The Rural Utilities Service published the underlying notice of funding opportunity in the Federal Register on August 4, 2026. An applicant whose letter is accepted receives an invitation to proceed and then has 60 days to submit the full application, so the October 9 date is the first gate rather than the last.
**Who can apply for a PART Energy Program loan?**
The eligible list reported for the 2026 round includes for-profit organizations, state and local governments, Indian tribes, Alaska Native Corporations, nonprofits, distribution and generation-and-transmission electric cooperatives, and certificated electric utilities. The inclusion of for-profit companies is what makes this relevant to a business rather than only to a utility, provided the project is rural and large enough to clear the $1 million loan floor.
**What kinds of projects does the PART program fund?**
As reported, renewable energy infrastructure such as hydro, geothermal and biomass, energy storage systems, microgrids, power lines, transformers and grid modernization. Loans run from $1 million to $100 million per project and cover up to 75 percent of total project costs, with the applicant supplying the remaining 25 percent in cash or equity. Operating utilities can seek system loans covering up to 100 percent where the agency finds it feasible.
**Is the PART program the same as a USDA REAP grant?**
No. REAP provides grants and guaranteed loans to agricultural producers and rural small businesses for projects at farm and small-business scale, and it remains the program most poultry and rural facility owners use for solar. PART is a Rural Utilities Service loan program with a $1 million floor aimed at larger energy infrastructure, including storage and microgrids, and it is open to cooperatives and utilities as well as companies. They serve different sizes of project.
**Can OneWorld Solar guarantee that a PART loan will be approved?**
No, and no contractor can. The loans are awarded by the Rural Utilities Service under its own criteria, and the letter of interest is a competitive first step, not an entitlement. What we do is prepare the technical side an application needs, meaning system sizing, interconnection detail, storage and microgrid design and a defensible energy estimate, so that the engineering is ready when the agency's invitation to proceed arrives.
---
## Microgrid runtime for critical loads: the Army set it at 14 days in Puerto Rico
Source: https://www.owsolar.com/news/microgrid-runtime-critical-loads-fort-buchanan
Topic: microgrid runtime for critical loads
Last updated: 2026-09-07
The U.S. Army Corps of Engineers awarded a $45 million contract on August 20 for a Fort Buchanan microgrid that must sustain critical operations for 14 days without the Puerto Rico grid. The budget is military. The method of sizing it is not.
The **microgrid runtime for critical loads** at a US Army post in Puerto Rico has been set at 14 days, and that number is worth more to a hotel or a port operator than the dollar figure attached to it. According to [a September 1 report by MGRID](https://mgrid.org/2026/09/01/army-awards-45-million-fort-buchanan-microgrid-built-to-run-the-base-for-14-days-without-the-puerto-rico-grid/), the U.S. Army Corps of Engineers awarded a $45,001,324 contract on August 20, 2026 for a microgrid at Fort Buchanan in Guaynabo, the only Army installation in the Caribbean. The system must sustain the base's critical operations for 14 days without the commercial grid. Four firms bid, and the award came in about $7 million under the Army's 2025 estimate of $52 million.
The reason for 14 days is not abstract. Hurricane Maria left parts of Puerto Rico dark for months in 2017, and the Army wrote its requirement against that memory rather than against a typical outage.
## What is inside a 14-day microgrid?
The design is a mix, and the mix is the lesson. The contract adds 8 MW of new diesel generation and integrates what the post already owns: a 4.65 MW solar array and two 275 kW wind turbines. Fuel is stored in twelve above-ground, ballistic-resistant tanks of 12,000 gallons each, 144,000 gallons in total, with a fuel polishing system so that diesel sitting for months is still usable when the day comes. A 4 MWh battery is listed as an option outside the base scope. Completion is due by October 5, 2029, which the report notes is three to four hurricane seasons away.
Read that list as an engineer would. Solar and wind carry the daytime and reduce the fuel burned. Generators carry the load when the weather does not cooperate and through the night. Fuel storage sets the duration. A battery, if added, smooths the transitions and covers the seconds a generator needs to start. Each element is there for a specific job, and none of them is asked to do the others' work.
## How long should a commercial microgrid run?
Almost no business needs 14 days, and the Army's number should not become anyone else's default. What transfers from Fort Buchanan is the order of the questions, not the answer.
The first question is which loads are critical, drawn as a list and then cut in half. On a resort it is usually the property management system, refrigeration, life safety and some fraction of the guest rooms rather than the whole building. On a poultry operation it is ventilation. On a port it is cranes, lighting and communications. The second question is how long those loads must run, measured against your utility's actual restoration history rather than a guess. The third is which sources cover which hours, which is where solar, storage and a generator each earn their place. We set out that comparison in [microgrid, generator or battery](/insights/microgrid-vs-generator-vs-battery), and the way the answers drive the budget in [what a commercial microgrid costs](/insights/commercial-microgrid-cost).
## What this means for a facility in the Southeast and the Caribbean
The Army's fuel arithmetic is the part most commercial buyers skip. Fourteen days of generation for a base needs 144,000 gallons and a system to keep it fresh. A business that writes "72 hours" into a specification without checking what fuel delivery looks like in the week after a storm is designing for a shorter event than it thinks. Solar on the roof changes that arithmetic directly, because every daytime kilowatt-hour from the array is a gallon that stays in the tank for the night.
In the Caribbean the case is sharper. Island grids take longer to restore, fuel arrives by sea, and a property that can island its critical loads keeps trading while its neighbors wait. That is the premise behind our work on [commercial solar installation in the Caribbean](/commercial-solar-installation-caribbean), including the [451.5 kW system for the Virgin Islands Port Authority on St. Thomas](/projects/virgin-islands-port-authority-451kw-solar). On the mainland the same logic applies to any [hotel or resort](/industries/hospitality) on the Florida or Georgia coast that has watched a storm season take a week of bookings.
## How we design for runtime
We start from interval data and a walk of the electrical rooms, not from a product list. The critical-load panel is drawn first, because trying to island an entire facility is how microgrid budgets get away from their owners. Then we size storage for the transitions and for the demand peaks it can earn against on ordinary days, size the array for the daytime load, and only then decide whether a generator belongs in the design and how much fuel it needs. Our [commercial microgrid installation](/services/micro-grids) work follows that sequence, and our [BatteryCube®](/batterycube) cabinets are built for the outdoor pad next to the transformers where an islanded system's storage usually sits.
The Army bought 14 days because it must operate through the worst week Puerto Rico has seen. Your number will be smaller, and it should be yours, derived from your loads and your utility. If you want it worked out, [send us twelve months of utility bills and any interval data you have](/contact), and we will tell you how many hours your critical loads actually need and what it takes to cover them.
### Frequently asked questions
**How long can the Fort Buchanan microgrid run without the grid?**
Fourteen days, according to the requirement MGRID reported from the U.S. Army Corps of Engineers award of August 20, 2026. The design adds 8 MW of new diesel generation and integrates the post's existing 4.65 MW solar array and two 275 kW wind turbines, with 144,000 gallons of fuel held in twelve ballistic-resistant tanks and a fuel polishing system. A 4 MWh battery is listed as an option outside the base contract.
**How many days of backup does a commercial microgrid need?**
There is no universal number, and 14 days is a military requirement written against Hurricane Maria rather than a template for a business. The honest method is to list the loads that truly cannot stop, cut that list hard, and then measure the duration against your utility's actual restoration history for your area. Most commercial sites land somewhere between a few hours and a few days once the critical loads are defined properly.
**Does solar reduce the fuel a backup generator needs?**
Yes, directly. Every daytime kilowatt-hour the array delivers to the critical loads is a kilowatt-hour the generator does not have to produce, which is fuel that stays in the tank for the night and for the days the weather does not cooperate. That is why the Army kept its 4.65 MW array inside the new design instead of relying on generation alone. Storage then covers the transitions between sources.
**Why is a battery optional in the Army's design?**
The report lists the 4 MWh battery as outside the base scope. In a design whose duration comes from fuel, a battery covers the seconds a generator needs to start and smooths the handoff between sources rather than adding days of runtime. For a commercial facility the calculation is different, because storage also earns against demand charges on ordinary days, which is usually the reason a business buys it in the first place.
**What did the Fort Buchanan microgrid cost and when will it be finished?**
The contract value is $45,001,324, awarded by the U.S. Army Corps of Engineers on August 20, 2026 after four firms bid. That came in about $7 million under the Army's 2025 estimate of $52 million. Completion is due by October 5, 2029, which the report notes leaves the post facing three to four more hurricane seasons before the system is commissioned.
---
## Section 232 solar module price floor: what it means for a 2027 project
Source: https://www.owsolar.com/news/section-232-solar-module-price-floor
Topic: section 232 solar module price floor
Last updated: 2026-09-06
Minimum import prices of 38 cents per watt on modules and 22 cents on cells take effect on December 4, 2026. Spot prices sit near 46 cents, analysts see US-assembled modules near 30 cents in 2027, and the federal credit calendar decides how long a business can wait.
The **Section 232 solar module price floor** takes effect on December 4, 2026, and it changes the arithmetic behind the timing of a commercial solar purchase. According to [PV Magazine's report of September 1](https://www.pv-magazine.com/2026/09/01/section-232-tariffs-push-u-s-module-prices-to-2023-levels-but-analysts-see-a-path-back-to-30-cents-per-watt/), the measures announced on August 6, 2026 set minimum import prices of 38 cents per watt for modules and 22 cents per watt for cells, add a 15% ad valorem tariff on solar imports, and sit on top of the existing Section 301 tariffs of 10 to 12.5%. Module spot prices in the United States have already moved to roughly 46 cents per watt, a level the market last saw in 2023.
That is the cost side, and it is real. The same report carries the half of the story a buyer in Georgia or the Carolinas should read twice. Analysts expect domestic module assembly to take over the market in 2027, and they project that a module assembled in the United States from imported cells could settle near 30 cents per watt once that capacity is running. A floor under imports is also an instruction to build here, and the report expects assembly capacity in this country to follow.
## What does a minimum import price actually do?
A minimum import price is a hard bottom, not a percentage. After December 4, an imported module cannot enter the country below 38 cents per watt, whatever the exporter would be willing to accept, and an imported cell cannot enter below 22 cents. Christian Roselund, a policy research manager quoted by PV Magazine, described the practical effect as the effective elimination of module imports, with plain economics steering buyers toward domestically assembled product.
The cell floor is the number to watch. It is what anchors the 30 cent projection: imported cells at their floor, assembled into modules in a US plant, land well below today's 46 cent spot price. The report expects that shift to show during 2027 rather than immediately.
## What this means for a facility in the Southeast
Modules are one line in the installed cost of a commercial system. Racking, inverters, conductors, switchgear, structural and electrical engineering, permitting and the utility interconnection are the others, and none of them is priced by this rule. The share that moves is the module share, and it moves in both directions depending on when and what you buy.
The scale is easy to see on a real project. A 500 kW rooftop array uses about 500,000 watts of modules. At today's 46 cents that is roughly $230,000 of panels. At the 30 cents the analysts project for US-assembled product in 2027, the same panels cost about $150,000. That $80,000 gap is why the timing question is worth asking, and why the answer is not simply to wait.
Waiting has a price of its own, and it sits on the tax side. As we set out in our note on the [commercial solar tax credit deadline in 2027](/news/commercial-solar-tax-credit-deadline-obbba-rules), a project that begins construction after July 4, 2026 has to be in service by December 31, 2027 to claim the federal credit. A business that delays its module order into late 2027 to catch the lower price can find it has run out of calendar for a credit worth far more than the module saving. The two dates have to be planned together.
There is a second incentive pulling the same way. The [30% federal solar tax credit for businesses](/incentives/federal-solar-tax-credit) carries a bonus of up to 10 percentage points for domestic content. A market that shifts to US assembly makes that content easier to source, though whether a given project qualifies depends on cost-based rules that your accountant applies to the actual bill of materials, and nobody should count the bonus before that work is done.
For a sense of where module cost sits inside the whole, our breakdown of [commercial solar cost per kW in Georgia](/insights/commercial-solar-cost-per-kw-georgia) walks through the other lines that a tariff does not touch.
## How we handle module procurement on a project
We build under a single [commercial solar EPC contract](/services/commercial-solar-epc), which means module procurement is our problem inside the project rather than a separate purchase you manage. Pricing is fixed at contract, the supplier's delivery date is written into the schedule, and the country of origin and the cell source are documented at the time of order, because the same paperwork that supports a domestic content claim also answers the foreign entity rules that now apply to the credit.
On the [1.267 MW Samsonite and TUMI roof in Vidalia](/projects/samsonite-tumi-1267kw-rooftop-solar-battery), the modules were one line inside a contract that also carried the structural engineering, the interconnection package and 55,000 pounds of BatteryCube® storage. That is the scale at which a few cents per watt on the module line matters, and also the scale at which the module line is a minority of the total.
For businesses [building commercial solar in Georgia](/commercial-solar-installation-georgia) over the next eighteen months, the practical position is this: the floor does not raise today's price, domestic assembly is likely to lower it through 2027, and the federal credit's calendar decides how long you can afford to wait for that to happen.
If you want the two dates worked out against your own roof and your own bill, [send us twelve months of utility bills](/contact) and we will come back with a system size, a procurement window and a schedule that keeps the credit within reach.
### Frequently asked questions
**When does the Section 232 solar module price floor start?**
The minimum import prices take effect on December 4, 2026, according to PV Magazine's account of the measures announced on August 6, 2026. From that date an imported module cannot clear customs below 38 cents per watt and an imported cell below 22 cents per watt. A 15% ad valorem tariff applies as well, on top of Section 301 tariffs that already run between 10 and 12.5% on much of the imported supply.
**Will solar panels cost more for a business in Georgia after December 2026?**
Imported modules cannot fall below the new floor, but the floor sits below today's spot price of roughly 46 cents per watt, so it does not by itself push prices higher. The larger effect is a shift toward modules assembled in the United States, which analysts expect could settle near 30 cents per watt during 2027. Modules are also one line among many in a commercial system's installed cost, so the overall project moves less than the panel price does.
**Should I wait until 2027 to buy solar panels for my business?**
Only if the tax calendar allows it. A project that begins construction after July 4, 2026 must be placed in service by December 31, 2027 to claim the federal investment credit, and a delay in ordering modules pushes the whole schedule toward that line. Compare the module saving you expect with the value of the credit you would put at risk, and plan the procurement date and the construction start together rather than separately.
**Does the domestic content bonus apply if my modules are assembled in the United States?**
It can, but assembly location alone does not settle it. The bonus of up to 10 percentage points on the federal credit depends on cost-based rules applied to the project's components and documented from the bill of materials. Your accountant validates the claim on your return. We keep the origin and cost records that support that analysis, and we say plainly when a project looks unlikely to clear the threshold.
**How does OneWorld Solar buy modules for a commercial project?**
Inside one EPC contract. We fix the module price when the contract is signed, write the supplier's delivery date into the construction schedule, and record the country of origin and the cell source at the time of order. That single set of records serves the schedule, the domestic content analysis and the foreign entity rules that now attach to the federal credit, so nobody is assembling paperwork after the fact.
---
## NFPA 855 2026 changes: what every commercial battery project must now document
Source: https://www.owsolar.com/news/nfpa-855-changes-commercial-battery-storage
Topic: NFPA 855 2026 changes
Last updated: 2026-09-05
The 2026 edition of NFPA 855 removes the 600 kWh trigger, so a hazard mitigation analysis is required for any stationary battery in scope, along with a documented emergency response plan, an annual review and annual training. The paperwork moves to the front of the project.
The **NFPA 855 2026 changes** move the safety paperwork on a commercial battery from an exception to a default. According to [a late-August bulletin from The Energy Storage Wire](https://theenergystoragewire.com/californias-storage-trade-association-says-containerized-bat/), the 2026 edition of NFPA 855, the Standard for the Installation of Stationary Energy Storage Systems, removes the 600 kWh threshold that previously decided whether a hazard mitigation analysis was required. Under the new edition that analysis applies to any indoor or outdoor energy storage system within the standard's scope, regardless of size.
The same edition adds a documented emergency response plan covering mitigation, preparedness, response and recovery, an annual review of that plan, and an annual refresher training program for the people who work in the facility. Those obligations run for the life of the installation, rather than only through commissioning.
## What changed in the 2026 edition of NFPA 855?
Three things, and each one lands on the owner rather than on the equipment.
The hazard mitigation analysis is now universal within scope. Before, a system under 600 kWh could often be permitted without one. A 500 kWh cabinet behind a distribution center or a poultry complex was on the light side of that line. The 2026 edition erases the line.
The emergency response plan is now a document the facility keeps current. The bulletin describes it as covering the four phases of an incident and being reviewed every year, with refresher training for facility personnel on the same cycle. That is a maintenance item, and it belongs in the same calendar as inverter firmware and fire extinguisher inspections.
Section 4.10.22 addresses what keeps the safety systems themselves alive. Critical safety systems are to receive reliable power in line with NFPA 110 or NFPA 111, and the design is subject to review by the fire protection engineer and the authority having jurisdiction. That covers indoor rooms and also outdoor equipment that relies on building services for its ventilation, detection or suppression.
## When does the 2026 edition apply to a project in the Southeast?
When your state or local jurisdiction adopts it. NFPA 855 reaches a project through the fire code the authority having jurisdiction enforces, and adoption dates differ. The bulletin points to California, which plans to bring the 2026 edition into its fire code on July 1, 2027, as the example of how the boundary works: a project permitted under an earlier edition keeps the 600 kWh threshold it was permitted with, and a project permitted after adoption does not.
For a business in Georgia, Florida or the Carolinas the practical reading is plain. A project that will be permitted in 2027 or later should be designed today as if the 2026 edition applies, because the cost of the analysis and the plan is small next to the cost of redesigning a pad, a setback or a ventilation scheme after the drawings are in. Confirm the edition in force with the local fire marshal at the start, and design to the newer one if there is any doubt.
## What this means for a facility planning battery storage
The analysis and the plan are the same questions a careful owner asks anyway, now written down in a form the fire marshal recognizes. What is in the cabinets, how far from the building, what happens in a thermal event, who is called, how the site is made safe and brought back. A facility that has those answers on paper is a better-run facility.
The timing lesson is the one that costs money if it is learned late. Storage that is designed alongside the solar array, on the same drawings and in the same permit set, absorbs these requirements as part of the engineering. Storage bolted on a year after the array, by a different contractor, has to reopen the permit and revisit the site plan. On the [1.267 MW Samsonite and TUMI project in Vidalia](/projects/samsonite-tumi-1267kw-rooftop-solar-battery), the 55,000 pounds of storage sat in the same contract and the same drawing set as the roof, on an outdoor pad beside the utility transformers, which is the arrangement that keeps a battery out of the building's fire-rated envelope in the first place.
There is a demand-charge case for storage that has nothing to do with resilience or codes, and it is the reason most of our customers buy it. We set that out in [when commercial battery storage pays off](/insights/commercial-battery-storage-payback). The 2026 edition does not change that arithmetic. It changes the order of the paperwork.
## How we build storage under NFPA 855
Our [commercial battery storage installations](/services/battery-storage) are engineered from the outset for outdoor pad mounting next to the point of interconnection, with the hazard analysis and the emergency plan prepared as part of the permit package rather than after it. [BatteryCube®](/batterycube) is our own line of pad-mounted cabinets built around CATL cells, and because we design, supply and install it under one [commercial solar EPC contract](/services/commercial-solar-epc), the same engineer who draws the site plan writes the documents the fire marshal reads.
If you are weighing a battery for a facility in [Georgia](/commercial-solar-installation-georgia) or elsewhere in the Southeast, the right moment to plan for the 2026 edition is before the drawings exist. [Send us twelve months of utility bills](/contact) and we will tell you whether storage has a case on your tariff, how large it should be, and what the permit package will need to contain.
### Frequently asked questions
**What is the 600 kWh threshold in NFPA 855 and why does it matter?**
Earlier editions of NFPA 855 used 600 kWh as the line above which a hazard mitigation analysis was required for an energy storage system. According to The Energy Storage Wire's summary of the 2026 edition, that trigger has been removed, and the analysis now applies to any indoor or outdoor energy storage system within the standard's scope. Smaller commercial installations that used to sit under the line are now inside the requirement.
**Does NFPA 855 2026 apply to my battery project in Georgia or Florida?**
It applies once the authority having jurisdiction over your site adopts the 2026 edition into the fire code it enforces, and adoption dates differ from state to state. The bulletin cites California, which plans to bring the edition into force on July 1, 2027. A project that will be permitted in 2027 or later is safest designed to the 2026 edition from the start. Confirm the edition in force with your local fire marshal before drawings are finalized.
**What is a hazard mitigation analysis for battery storage?**
It is a documented evaluation of the failure modes an energy storage system can experience, the design measures that limit them, and how an event is contained and responded to, prepared for review by the authority having jurisdiction. The 2026 edition makes it a requirement for every system in scope rather than only larger ones. We prepare it as part of the permit package so the fire marshal reads it alongside the site plan.
**What must the emergency response plan include under the 2026 edition?**
According to the bulletin, a plan covering mitigation, preparedness, response and recovery, reviewed once a year, with an annual refresher training program for facility personnel. It is a living document that stays with the facility for the life of the installation rather than a one-time commissioning deliverable. The same edition, in section 4.10.22, also requires that critical safety systems receive reliable power in line with NFPA 110 or 111.
**Is it cheaper to add battery storage later or to design it with the solar array?**
Designing the two together is almost always cheaper. Storage that shares the array's drawings, permit set and contract absorbs the hazard analysis and the emergency plan as ordinary engineering. Storage added a year later by a different contractor reopens the permit and the site plan under whichever edition is then in force. On the Samsonite and TUMI project the 55,000 pounds of storage sat in the same contract and drawing set as the 1.267 MW roof.
---
## Commercial solar tax credit deadline 2027: the post-OBBBA rules for a project you start now
Source: https://www.owsolar.com/news/commercial-solar-tax-credit-deadline-obbba-rules
Topic: commercial solar tax credit deadline 2027
Last updated: 2026-09-04
The federal credit for a business solar project did not disappear with the One Big Beautiful Bill Act. It acquired a calendar. Projects that begin construction after July 4, 2026 must be in service by December 31, 2027, and a 1.5 MW threshold decides how easily a commercial system proves it has started.
The **commercial solar tax credit deadline 2027** is the part of the One Big Beautiful Bill Act that a business owner in the Southeast actually needs to write down. The law, signed on July 4, 2025, did not remove the federal credit for a business that builds solar or battery storage. It put a clock on it. According to IRS Notice 2025-42 and the analysis the AICPA's Tax Adviser published in February 2026, a solar facility that begins construction after July 4, 2026 must be placed in service by December 31, 2027 to claim the section 48E investment credit. A facility that began construction earlier keeps the older, more generous timeline.
That single sentence changes how a project should be planned, so it is worth setting out the rules in plain words, and then what they mean for a 200 kW dealership roof or a 1 MW poultry farm.
## What credit are we talking about?
Section 48E is the clean electricity investment credit that replaced the old section 48 energy credit for property placed in service after 2024. The IRS describes its base rate as 6% of the qualified investment, multiplied by five, to 30%, when the project meets prevailing wage and apprenticeship requirements. Bonuses of up to 10 percentage points each are available for domestic content and for projects in an energy community. It applies to a qualified facility such as a solar array and, separately, to energy storage technology, which is the category a commercial battery falls into.
Nothing in the new law lowers that 30% for a business. What the law does is decide who can still reach it, and by when.
## When does a solar project have to be in service?
Two dates decide it, and they hinge on when construction begins.
If construction begins after July 4, 2026, the solar property must be placed in service by December 31, 2027. Miss that date and, in the words of the Kirkland & Ellis summary of the law, the project loses eligibility for the credit entirely.
If construction began before July 5, 2026, the facility keeps the continuity safe harbor from earlier guidance. The Tax Adviser describes it as being placed in service by the end of a calendar year no more than four years after the year construction began, which puts a project that started in 2026 at December 31, 2030.
For anyone reading this in September 2026 who has not yet started, the first date is the one that applies. Sixteen months, from signing a contract to a utility witness test, is a real schedule for a commercial system. It is not a schedule that tolerates a slow interconnection application or a permit that sits on a desk, which is why the calendar has to be part of the design, not an afterthought.
## Why does the 1.5 MW line matter so much?
Notice 2025-42 tightened how a project proves that construction has begun. For solar and wind facilities in general, effective for construction beginning on or after September 2, 2025, only the physical work test counts: actual, significant physical work on the facility, on site or on custom equipment built for it.
The exception is the one that covers most of our customers. A solar facility with a maximum net output of not more than 1.5 MW can still use the 5% safe harbor, meaning the owner pays or incurs at least 5% of the total cost and then makes continuous efforts to complete the facility. A 1.267 MW system, which is the size of our largest single rooftop, still sits under that threshold. So does every dealership, hotel and poultry array we have built.
In practice that means a business can lock in its beginning-of-construction date with a documented equipment deposit and a signed engineering scope, rather than waiting for racking to be bolted to a roof. It also means the paperwork behind that deposit has to be right, because it is the paperwork an accountant will examine.
## What happens to battery storage?
Battery storage is on a different timeline, and a longer one. The termination dates above apply to wind and solar. Energy storage technology keeps its section 48E credit on the original schedule, which phases down only for construction beginning in 2034 (75% of the full credit), 2035 (50%) and 2036 or later (none).
For a facility deciding between solar alone and solar with storage, that asymmetry is useful. The array is the part with the near-term deadline; the battery that trims the demand charge is not. A battery sized from interval data, of the kind we build with our own [BatteryCube® commercial battery energy storage system](/batterycube), can be planned on its own merits, and our page on [commercial battery storage installation](/services/battery-storage) explains where those merits come from.
## What are the foreign entity rules?
Two more provisions belong on the checklist. For tax years beginning after July 4, 2025, a taxpayer that is a prohibited foreign entity cannot claim the credit at all. And for any facility that begins construction after December 31, 2025, the credit is lost if construction includes material assistance from a prohibited foreign entity, a test based on the share of the facility's cost that comes from such entities, with a threshold that tightens year by year. The definition reaches entities owned by, controlled by, or headquartered in China, Russia, Iran or North Korea, and entities under their influence.
That rule sits on the procurement side of the job. Module, inverter and racking sourcing has to be documented against the thresholds from day one, which is one more reason to have a single [commercial solar EPC contractor](/services/commercial-solar-epc) accountable for engineering, procurement and construction together rather than three vendors pointing at each other.
## How does a Southeast business use these dates?
Start from the end. A project that will begin construction this fall needs to be in service by the end of 2027, so the sequence is: twelve months of bills and interval data now, a site walk and a design in weeks rather than months, an interconnection application filed early because the utility review is the step nobody controls, and an equipment deposit that establishes the beginning of construction under the 5% safe harbor for a system under 1.5 MW.
The credit then stacks with the depreciation rules we describe in [stacking the solar tax credit and Section 179](/insights/stacking-solar-tax-credit-section-179), and, for rural operations, with a [USDA REAP grant for solar](/incentives/usda-reap-grant). Our page on the [30% commercial solar tax credit](/incentives/federal-solar-tax-credit) covers the basics of eligibility; the deadlines in this article are the part that is new.
One caution that we repeat on every proposal: none of this is a promise that the credit will be granted to your project. It is claimed on your return, it depends on your tax liability, and it must be validated by a Certified Tax Accountant. We prepare the schedule and the records that make that validation straightforward.
If you want to know whether a project on your roof can realistically be in service before the end of 2027, run the [commercial solar savings calculator](/calculator) for the size and the savings, then send twelve months of bills through our [proposal request form](/contact). We will come back with a design, an installed cost, a payback range and an honest read of the calendar.
### Frequently asked questions
**What is the commercial solar tax credit deadline after the One Big Beautiful Bill Act?**
For a solar facility that begins construction after July 4, 2026, the property must be placed in service by December 31, 2027 to qualify for the section 48E credit. A facility that began construction before July 5, 2026 keeps the older continuity rule, which allows up to four calendar years after the year construction began. The credit itself is still 30% of the qualified investment when prevailing wage and apprenticeship requirements are met, or 6% without them.
**Does the 1.5 MW rule help a commercial solar project?**
It helps most of them. IRS Notice 2025-42 limits larger solar and wind facilities to the physical work test for proving that construction has begun, but a solar facility with a maximum net output of 1.5 MW or less can still use the 5% safe harbor, meaning paying or incurring 5% of the total cost and then making continuous efforts to complete it. Almost every rooftop or ground-mount system a business builds sits under that line.
**Is battery storage affected by the 2027 solar deadline?**
No. The accelerated termination applies to wind and solar facilities. Energy storage technology keeps the section 48E credit on its original schedule, which phases down to 75% of the full value for construction beginning in 2034, 50% in 2035 and nothing after that. A battery paired with solar, or installed on its own to cut demand charges, is therefore on a much longer runway than the array beside it.
**What are the foreign entity rules and when do they apply?**
Two restrictions came with the law. A taxpayer that is a prohibited foreign entity cannot claim the credit for tax years beginning after July 4, 2025. Separately, a facility that begins construction after December 31, 2025 loses the credit if its construction includes material assistance from a prohibited foreign entity, measured by a cost ratio that tightens each year. Equipment sourcing therefore has to be documented from the start, which is part of the procurement work on any project we build.
**Can OneWorld Solar guarantee that my project gets the credit?**
No contractor can, and you should be wary of one who says otherwise. The credit is claimed on your own return and depends on your tax position, on the construction dates and on documentation that a Certified Tax Accountant validates. What we do is design the schedule around the deadlines, prepare the beginning-of-construction and sourcing records your accountant will ask for, and tell you plainly where the calendar is tight.
---
## Puerto Rico battery storage loan: what federal backing says about island resilience
Source: https://www.owsolar.com/news/puerto-rico-battery-storage-loan-island-resilience
Topic: Puerto Rico battery storage loan
Last updated: 2026-09-03
The Department of Energy closed a $489.4 million loan on August 5 for 220 MW of battery storage in Arecibo and Santa Isabel, and put a number on what reliability is worth: about 13 million customer interruption hours avoided a year. A resort or a port on any island can do the same arithmetic on its own meter.
The **Puerto Rico battery storage loan** that the U.S. Department of Energy closed on August 5, 2026 is worth reading for what it prices as much as for what it builds. The Office of Energy Dominance Financing lent $489.4 million to finance 220 MW of battery energy storage at Arecibo and Santa Isabel, built with American-manufactured batteries. The department expects the two sites to save Puerto Rican families and businesses about $312.5 million on electricity over 25 years and to provide backup power to more than 100,000 customers, avoiding roughly 13 million customer interruption hours a year based on 2025 data. That last figure is the interesting one, because it is reliability expressed as a number, and reliability is what every island business is buying when it puts a battery behind its own meter.
## What is in the loan?
The facts come from the department's own announcement. Two battery sites, 220 MW between them, financed by a federal loan rather than a grant, to a developer that operates on the island. EDF Director Gregory A. Beard said the investment "will strengthen Puerto Rico's electric grid, lower electricity costs, support American manufacturing." The announcement also describes a pathway for future dispatchable natural gas generation to support grid stability, which tells you the department sees storage as the near-term fix and firm generation as the longer one.
The trade outlet mGrid noted a change from the conditional commitment announced in January 2025, which had covered 180 MW of storage plus a 70 MW solar plant. The closed loan covers storage only, and the announcement does not explain the difference. Storage does not add generation; it moves energy in time. On a grid with frequent interruptions, that is the capability the utility needs first, and the federal lender agreed.
## Why does a mainland lender care about island batteries?
Because the arithmetic on an island is unusually clear. Generation is expensive, the grid is exposed to weather, and every hour a customer is without power has a cost that can be counted. Thirteen million customer interruption hours a year is the kind of number that turns a battery from an energy asset into an insurance policy with a stated premium and a stated payout.
That is the same reasoning we walk a resort operator or a port authority through, at a smaller scale, when we size a system for them. The value of a commercial battery on an island has three parts: the demand charge it shaves on an ordinary day, the energy it shifts where the tariff rewards that, and the loads it keeps alive when the grid goes down. The third part is not payback in the usual sense. It is the cost of an evening without air conditioning in a full hotel, or of a refrigerated container that cannot wait, and on an island it is the part that usually decides the project.
## What does this mean for a resort, a port or a plant in the Caribbean?
It means the direction of public money confirms what private buyers on the islands already knew: flexibility is worth paying for. A more reliable Puerto Rico grid is good news for everyone connected to it, and the loan's projected savings will show up over decades in system costs. It does not change the reliability of the feeder that serves one particular hotel next hurricane season. A facility that wants power on its own schedule still has to own the equipment that provides it.
We have built that equipment across the region. Our [commercial solar installation in the Caribbean](/commercial-solar-installation-caribbean) page sets out how island projects differ from mainland ones, from salt-air corrosion to shipping logistics. The [800 kW system at the Westin Dawn Beach Resort in St. Maarten](/projects/westin-dawn-beach-resort-800kw-solar) and the [451 kW ground mount for the Virgin Islands Port Authority](/projects/virgin-islands-port-authority-451kw-solar) are the two largest, and both were designed around the reality that grid power on an island is neither cheap nor guaranteed.
The battery side is where the Puerto Rico announcement and a private project meet. Our [BatteryCube® commercial battery energy storage system](/batterycube) is built around CATL cells in outdoor cabinets, and 55,000 lb of it runs today beside our largest solar array in Georgia. For a site that cannot go dark, the same cabinets become the core of a [commercial microgrid](/services/micro-grids) that islands itself from the utility and carries the loads you choose. For a site whose problem is the monthly peak rather than outages, [commercial battery storage installation](/services/battery-storage) on its own is often the right size of answer.
## How do you size resilience instead of guessing at it?
The federal lender priced reliability from interruption data. A facility does the same thing from its own records. Twelve months of bills show the demand charge and any time-of-use spread. Interval data, where the utility will release it, shows how tall the peaks are and how long they last. An outage log, even a rough one, shows how many hours a year the site was without power and what each hour cost in refunds, spoiled stock or idle staff.
From those three inputs a battery can be sized honestly: enough capacity to carry the critical loads for the outage duration the site actually experiences, enough power to shave the peaks that drive the bill, and solar on the roof to recharge it during the day. Oversizing is expensive and undersizing is disappointing, and the data is what keeps a design between the two.
If your facility is on an island, or on a mainland feeder that behaves like one, send us those records through our [proposal request form](/contact). We will come back with a system size, an installed cost, the incentives that apply, and a plain statement of what the equipment will and will not do during the next long outage.
### Frequently asked questions
**What does the Puerto Rico battery storage loan pay for?**
It finances 220 MW of battery energy storage at two sites, Arecibo and Santa Isabel, using American-manufactured batteries. The Department of Energy's Office of Energy Dominance Financing closed the $489.4 million loan on August 5, 2026 and expects the projects to save Puerto Rican families and businesses about $312.5 million on electricity over 25 years, while providing backup power to more than 100,000 customers when the grid is under strain.
**Why is storage rather than solar being financed?**
The conditional commitment announced in January 2025 covered 180 MW of storage plus a 70 MW solar plant, according to the trade press; the loan that closed covers storage only, and the announcement does not say why the solar component was dropped. Storage moves energy in time rather than adding generation, and on a grid with frequent interruptions that flexibility is what the utility needs first. The same logic applies at a single facility.
**How does a hotel or resort in the Caribbean get the same kind of resilience?**
With a battery and, where the site cannot go dark at all, an islandable microgrid on its own side of the meter. A resort battery covers the peak that drives the demand charge on normal days and carries chosen loads through an outage, and pairing it with rooftop solar extends the run time. We have built 800 kW at a resort in St. Maarten and 451 kW for a port authority in the U.S. Virgin Islands, so the engineering is familiar territory.
**Does federal money like this reach private businesses on the islands?**
This loan went to a utility-scale developer, not to individual businesses, so the direct answer is no. Its value to a private facility is indirect: a more reliable grid and lower system costs over time. A business that wants reliability on its own schedule still has to build it, and the federal incentives that apply to a commercial battery, principally the section 48E investment credit, are claimed on the owner's own return and validated by a tax professional.
---
## What the Georgia Power OpenAI data center deal means for business bills
Source: https://www.owsolar.com/news/georgia-power-openai-data-center-deal-business-bills
Topic: Georgia Power OpenAI data center deal
Last updated: 2026-09-02
Regulators approved a 3.2 gigawatt data center contract on August 27 with a written promise of at least $15 a month off a typical residential bill from 2029. The promise is real, it is narrow, and the parts of a commercial bill it does not touch are the ones a business can control itself.
The **Georgia Power OpenAI data center deal** cleared its last hurdle on August 27, 2026, when the Georgia Public Service Commission approved a long-term service contract for a 3.2 gigawatt hyperscale campus at the Savannah Gateway Industrial Hub in Effingham County. That is a single customer whose demand, according to The Current's report on the order, is equivalent to more than two million homes. For a business anywhere on the Georgia Power system, the interesting part is not the size. It is what the contract promises, what it protects, and what it leaves for you to do yourself.
## What did Georgia Power actually commit to?
Two things, and they are worth separating. The first is a bill figure. Under the approved order, Georgia Power raised its expected downward pressure on a typical residential bill of 1,000 kWh a month from at least $8.50 to at least $15 a month for the years 2029 through 2031. In its own statement the utility put that at roughly $180 a year per household and about $950 million a year across the system from 2029, with OpenAI funding the infrastructure needed to connect the site. Kim Greene, Georgia Power's chairman, president and CEO, summed up the intent in one line: data centers are paying more so families and small businesses can pay less.
The second commitment is a set of safeguards the commission added. Georgia Power agreed not to recover lost revenues from customers outside the large-load class, which the order describes as residents and the vast majority of the state's business owners. If a large-load customer ends its contract early, the utility will not seek the resulting shortfall from residential and small business customers in a future rate case. A public summary of the contract is due within ten days, and the utility will report publicly twice a year on how its data center portfolio is performing.
Both reports carry the same caveat, and it belongs in any honest reading of the deal. The $15 figure is downward pressure, not a guaranteed bill. Fuel costs and storm recovery can move a bill the other way, and the order says so.
## What does the deal mean for a commercial account?
Read the safeguards first. They are good news for a Georgia business, because they draw a line around the cost of serving this one customer and keep it off your bill. That matters in a state where a July 2025 base rate freeze and a May 2026 rate reduction plan already set the direction of travel, and the commission has now added a written backstop.
Then read what the promise covers, because it is specific. The $15 a month is measured against a residential customer using 1,000 kWh. A poultry farm, a dealership or a plant does not have that bill. A commercial account is decided by the demand charge on the highest measured interval of the month, by the fuel rider, and on some schedules by a ratchet that carries one bad peak forward for months. None of those lines is named in the commitment, and none of them is what a data center's contract is designed to change.
There is a detail in the contract that tells you where the value on this grid now sits. OpenAI committed up to 1,000 megawatts of flexible demand response, meaning it can cut its draw when the system is tight. The utility negotiated for that flexibility because peak capacity is the scarce thing, and it will keep pricing peaks accordingly. For a business, the lesson is that flexibility is worth money, and you can own it rather than wait for it to show up in a tariff.
## How does a business capture the same value on its own meter?
The same way the data center did, at a smaller scale: generate part of your own energy and control your own peak. We have been building exactly that for Georgia customers since 2001, and the approach is documented on our page on [commercial solar installation in Georgia](/commercial-solar-installation-georgia).
Solar takes the energy portion of the bill across daylight hours, which is where a dealership, a warehouse or a broiler house does most of its consuming. It does not reliably reduce a demand charge, because the utility can set your billed peak on a cloudy afternoon or after dark. That gap is what [commercial battery storage installation](/services/battery-storage) exists to close. A battery sized from interval data discharges into the peaks so the meter never records them, and it does that whether or not the next rate case moves the residential baseline. If you want to know what the equipment looks like, our own [BatteryCube® commercial battery energy storage system](/batterycube) is built around CATL cells and assembled here in Vidalia.
Our largest single site is the clearest example. At the Samsonite and TUMI facility in Vidalia we paired 1.267 MW of rooftop solar with 55,000 lb of battery storage, so the plant's billed peak is shaped by the battery rather than by the raw draw of the production floor. The full build is in the [Samsonite and TUMI 1.267 MW rooftop solar and battery case study](/projects/samsonite-tumi-1267kw-rooftop-solar-battery). Whether a battery earns its keep at your site is a question your rate schedule answers, and we walk through how to read it in our article on [commercial battery storage payback](/insights/commercial-battery-storage-payback). Some sites turn out to have a cheaper problem, such as a power factor penalty, which is why we check for that first through [power factor correction services](/services/power-factor-correction) before quoting storage.
On the incentive side, both solar and paired storage have been eligible for the [30% commercial solar tax credit](/incentives/federal-solar-tax-credit) under current federal rules. The credit is claimed on your return and validated by your accountant, and we prepare the documentation that makes that straightforward.
## What should a Georgia business do this month?
Pull twelve months of Georgia Power bills and, if the utility will release it, your interval data. Find the demand charge line and add up a year of it. That number is the ceiling on what a battery can save you, and it is the part of your bill that the data center deal does not touch. If the number is small, you have your answer and it cost you nothing. If it is a third of the bill, as it is at some of the plants we visit, the deal that matters most to you is the one you sign for your own roof.
Send us those bills through our [commercial solar proposal request](/contact), or start with the [commercial solar savings calculator](/calculator) to see the order of magnitude for a facility your size. We will come back with a system size, an installed cost, the incentives that apply and a payback range, and we will tell you plainly if the numbers are not there.
### Frequently asked questions
**Will the Georgia Power OpenAI data center deal lower my business electric bill?**
Not directly, and not soon. The commitment Georgia Power made is at least $15 a month of downward pressure on a residential bill of 1,000 kWh between 2029 and 2031. Businesses are covered by the safeguards that stop the utility recovering lost revenue from them, which protects you from paying for the data center. It does not promise a cut to demand charges or the fuel rider, which are the lines that decide most commercial bills.
**What is the 3.2 gigawatt OpenAI data center in Georgia?**
It is a hyperscale computing campus planned for the Savannah Gateway Industrial Hub in Effingham County, served by Georgia Power under a long-term contract the Public Service Commission approved on August 27, 2026. At 3.2 gigawatts its demand is equivalent to more than two million homes. OpenAI funds the infrastructure to connect it and has committed up to 1,000 megawatts of flexible demand response, meaning it can reduce its draw when the grid is tight.
**Why do demand charges matter more when large loads join the grid?**
Because the utility now has a very large customer whose flexibility it values, and it will keep pricing peak capacity to reflect that scarcity. A commercial demand charge bills your single highest interval of draw in a month, and no residential bill promise changes that number. The two ways a business lowers it are to run less at the peak or to serve part of the peak from a battery on its own side of the meter.
**How can a Georgia business capture the same kind of savings the data center negotiated?**
By owning flexibility instead of buying it. Rooftop or ground-mount solar cuts the energy portion of the bill across daylight hours, and a battery sized from your interval data shaves the demand peak that solar alone cannot reach. Both are on your side of the meter, so they work regardless of how the next rate case goes. The starting point is twelve months of bills and, if your utility will release it, your interval data.
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## Duke Energy Progress rate increase 2027: what the settlement means for your business
Source: https://www.owsolar.com/news/duke-energy-progress-rate-settlement-north-carolina-business
Topic: Duke Energy Progress rate increase 2027
Last updated: 2026-09-01
A settlement in the Duke Energy Progress rate case would raise rates in two steps from January 1, 2027, if the North Carolina Utilities Commission approves it. The size is known, the date is known, and a business in eastern North Carolina or the Asheville area has four months to decide how much of it to pay.
The **Duke Energy Progress rate increase 2027** now has a shape. A settlement filed in the utility's North Carolina rate case would raise rates in two steps, the first on January 1, 2027 and the second in 2028, if the North Carolina Utilities Commission approves it. Hearings resumed in Raleigh on August 11, 2026, according to WRAL, and the Commission has yet to rule. For a business in eastern North Carolina or the Asheville area, the useful part of the story is that the size and the timing are now on the record, which is enough to plan against.
## What is in the Duke Energy Progress settlement?
Duke Energy Progress opened the case asking for an 18.1% residential increase over two years, according to the North Carolina Department of Justice. The settlement it reached with the Public Staff, industrial and commercial customer groups and several other parties brings that to 6.8% over two years. WRAL puts the original request at a 15.1% cumulative increase in annual retail revenues and says the settlement cuts it by more than half.
In dollars, WRAL reports that a typical residential customer using 1,000 kWh a month would pay about $9.62 more a month from January 1, 2027 and another $5.89 a month from 2028, with similar percentage increases applied to other customer classes. The settlement also returns about $120 million a year in federal tax credits to customers, adds a refund mechanism for infrastructure upgrades that are not completed, and commits $10 million from Duke shareholders to bill assistance and weatherization.
Not everyone signed. Attorney General Jeff Jackson declined, saying the reduced figure "is still too high for families and still more than the company needs to cover its investments." By August 14 his office was also disputing the arithmetic, arguing that residential customers would see closer to 9.3% rather than 6.8%. Duke defended the agreement as a compromise among a broad group of parties. The Commission will decide whether the rates are just and reasonable, and it can approve, modify or reject the deal.
## What does the case mean for a business in the Carolinas?
Two things are worth separating: what is settled and what is still moving.
What is settled is the direction. Duke Energy Progress serves eastern North Carolina and the Asheville area, so the case covers the poultry belt, the coastal plain's food processors and distribution centers, and the manufacturers along the I-40 corridor west of the Triangle. Every one of those accounts is on a schedule that the settlement would raise in two steps. The Department of Justice notes that Duke Energy Carolinas, which serves the rest of the state's Duke customers, has its own settlement before the Commission with a residential increase of about 9.5% over two years. Whichever Duke company bills you, the next two years are priced upward.
What is still moving is the exact percentage, and that matters less than it sounds. A commercial bill is driven by the demand charge on the highest measured interval of the month and by the energy charge on every kilowatt-hour, and both scale with the rate. Whether the residential figure ends at 6.8% or 9.3%, the way a facility keeps its own bill from following the tariff is the same: use less from the meter at the moments that cost the most.
The settlement carries one more signal for larger users. As part of the agreement, Duke Energy Progress joined Duke Energy Carolinas' fast-track process for new rules covering data centers and other large energy users, according to the Department of Justice. Regulators in the Carolinas are starting to price large, inflexible load differently from load that can bend. A facility that can shape its own peak is on the right side of that line.
## How does a Carolina business get ahead of January 2027?
By treating the four months between now and the first rate step as the window they are. We have built [commercial solar installations in North Carolina](/commercial-solar-installation-north-carolina) and across the Southeast since 2001, and the sequence is the same on every site.
Start with twelve months of Duke Energy Progress bills. Find the demand charge line and add up a year of it. Find the energy charge and do the same. If there is a power factor penalty, note it separately, because that one is usually the cheapest to remove. Those three numbers tell you which part of the coming increase you can do something about.
Solar addresses the energy charge. A rooftop or ground-mount array built under one [commercial solar EPC contract](/services/commercial-solar-epc) replaces daytime kilowatt-hours at a cost that is fixed on the day the system is commissioned, which is precisely the property a rising tariff cannot offer. On a poultry farm, where ventilation and cooling load peaks with the afternoon sun, the match between generation and consumption is close; our page on [solar panels for poultry farms](/industries/poultry) and the [450 kW, 14-house broiler farm case study](/projects/poultry-450kw-14-house-broiler-solar) show what that looks like on a working operation.
The demand charge is a different problem, and solar alone does not reliably fix it, because the utility can set your billed peak on a cloudy afternoon or after dark. That is the job of [commercial battery storage](/services/battery-storage), sized from interval data rather than from a monthly total, discharging into the peaks so the meter never records them. Whether a battery pays for itself on your rate schedule is a question we answer before quoting one, and our article on [commercial battery storage payback](/insights/commercial-battery-storage-payback) walks through how to read your own tariff for the answer.
On cost, both solar and paired storage have been eligible for the [30% federal solar tax credit](/incentives/federal-solar-tax-credit) under current rules, subject to conditions your accountant should confirm. The credit is claimed on your return and validated by a tax professional; we prepare the documentation that makes that straightforward.
## What happens between now and the Commission's decision?
The Commission finishes hearing testimony, weighs the objections from the Attorney General and others, and issues an order. Duke has asked for year-one rates to be in place no later than January 1, 2027. A facility that starts its assessment now can be designed, permitted and interconnected inside that window, and the first rate step then lands on a bill that is already smaller.
Run the [commercial solar savings calculator](/calculator) with your average monthly bill to see the order of magnitude for a site your size, or send us twelve months of Duke Energy Progress bills through our [proposal request form](/contact). We will come back with a system size, an installed cost, the incentives that apply and a payback range, and if the numbers do not work on your schedule we will say so.
### Frequently asked questions
**When does the Duke Energy Progress rate increase take effect?**
January 1, 2027 for the first step and 2028 for the second, if the North Carolina Utilities Commission approves the settlement as filed. The Commission resumed hearings on August 11, 2026 and still has to rule that the rates are just and reasonable. It can approve the agreement, modify it or reject it, so the date is Duke's request rather than a decision, and the final numbers can move.
**How much will Duke Energy Progress rates go up under the settlement?**
Duke Energy Progress describes it as a 6.8% residential increase over two years, down from the 18.1% it first asked for according to the North Carolina Department of Justice. WRAL reports that a typical 1,000 kWh residential bill would rise about $9.62 a month in 2027 and another $5.89 a month in 2028, with similar percentage increases for other customer classes. The Attorney General argues the residential figure is really closer to 9.3%.
**Which parts of North Carolina does Duke Energy Progress serve?**
Eastern North Carolina and the Asheville area, which is why the case matters to poultry operations, food processors, distribution centers and manufacturers across the coastal plain and the mountains. The rest of the state's Duke customers are served by Duke Energy Carolinas, which has its own settlement before the Commission with a residential increase of about 9.5% over two years, according to the Department of Justice.
**What can a business do before the new Duke Energy rates start?**
Read twelve months of bills to find the demand charge, the energy charge and any power factor penalty, because each responds to a different fix. Solar generated on site reduces the energy portion for as long as the panels run, and a battery sized from interval data shapes the billed peak. A project that is interconnected before January 2027 sees the first rate step land on a smaller bill.
---
## Hurricane Helene block grant: $531 million for Georgia farms this fall
Source: https://www.owsolar.com/news/hurricane-helene-block-grant-georgia-farms-power
Topic: Hurricane Helene block grant Georgia farms
Last updated: 2026-08-31
The Georgia Department of Agriculture expects to pay out $531.236 million in USDA block grant funds for uncompensated Hurricane Helene losses by the end of fall, prorated across more than 4,200 eligible applications. The money answers what was lost. What to rebuild differently is a separate question, with a deadline of its own.
The **Hurricane Helene block grant for Georgia farms** is moving from paperwork to payments. According to the Georgia Farm Bureau, the Georgia Department of Agriculture expects to disburse the state's $531.236 million in USDA block grant funds by the end of fall 2026, to farmers, ranchers and timber producers whose Helene losses were not covered by existing federal programs. That is a large sum landing in rural Georgia inside a few months, and for the poultry and row-crop operations that took the worst of the storm it settles the first question, which is what was lost. The second question is what to rebuild differently, and that one has a calendar attached.
## What the block grant covers and how it will be paid
The numbers come from the Farm Bureau's August 19 report. Georgia asked USDA for more than $1 billion and was awarded $531.236 million. Applications closed on May 11 and about 5,900 were received; more than 4,200 were deemed eligible for full review, while roughly 1,700 were set aside as incomplete, duplicate or fraudulent. Of the applications, around 3,200 concerned timber losses, 1,400 agricultural losses and 630 both.
The Department of Agriculture and the Georgia Forestry Commission are running the review with a team of about 35 employees and contractors. Because eligible requests add up to roughly $900 million against the funds available, payments will be prorated. Commissioner Tyler Harper put it plainly: "every eligible applicant receives the same proportional share of what they were approved for based on the available funding."
There is a second window still open. The USDA Farm Service Agency has extended both Stage 1 and Stage 2 applications under the Supplemental Disaster Relief Program for qualifying 2023 and 2024 losses to September 30, 2026, according to the Ag Information Network, and is letting producers with quality-related discounts prove those losses with verifiable documentation. It is a separate program with its own rules, and it closes in a month.
## What a poultry farm learned from the outage
Helene's lasting damage on many Georgia farms went beyond structures. It reached the power supply. A broiler house without ventilation on a September afternoon is a loss measured in birds, and the farms that came through best were the ones with backup power that started and kept running for as long as the lines were down. That experience is now part of how growers in south Georgia think about their operation, and it is why we keep hearing the same question on site walks: if we are rebuilding anyway, what should the power look like?
Our answer starts with what we have built. Across more than 4.8 MW on poultry houses in the Southeast, the pattern is consistent: roof-mounted arrays sized to the farm's daytime load, which on a broiler operation is driven by ventilation and cooling in the hours when the sun is highest. The [450 kW system on a 14-house broiler farm](/projects/poultry-450kw-14-house-broiler-solar) is a working example, and our page on [solar panels for poultry farms](/industries/poultry) sets out the economics in detail.
Solar on its own does not keep the fans running when the utility feed is gone. That job belongs to a battery sized from the farm's interval data and designed to carry the critical loads, which on a poultry farm means ventilation, controls and water, for the number of hours the last outage actually lasted. Our page on [commercial battery storage installation](/services/battery-storage) explains how that sizing works, and for an operation that cannot tolerate any interruption, the battery becomes the core of a [commercial microgrid](/services/micro-grids) that islands the farm from the grid automatically.
## Why the REAP calendar matters now
A farm that rebuilds its power infrastructure this year has one federal program that fits the job precisely. The [USDA REAP grant for solar](/incentives/usda-reap-grant), the Rural Energy for America Program, funds renewable energy systems and energy efficiency improvements for agricultural producers and rural small businesses. It is competitive, it is applied for through USDA Rural Development, and a grant is never guaranteed, which is why we describe the process step by step in our [guide to applying for a USDA REAP grant for solar](/insights/usda-reap-grant-application-guide) rather than promising an outcome.
The reason to think about it now rather than after the block grant arrives is sequencing. A REAP application needs a technical report, a design and a cost estimate, and the program's application windows do not wait for a farm's cash flow. A grower who knows in September what a resilient power system for the farm would cost can decide in the fall, with the block grant payment in hand, how much of the rebuild to direct toward equipment that pays back every month rather than only during the next storm. The block grant itself compensates for losses; what a farm does with its rebuilt operation is the farm's decision, and it is worth making with numbers on the table.
## What to do this month
Pull twelve months of Georgia Power or EMC bills for the farm and, if the utility will release it, the interval data. Note how many hours the last outage lasted and what it cost. Those three things are enough for us to size an array and a battery, price them, and tell you what REAP and the federal tax credit could do to the net cost, with the usual caveat that the grant is awarded by USDA and the credit is claimed on your return and validated by a tax professional.
We have been building on Georgia farms since 2001, and our [commercial solar installation in Georgia](/commercial-solar-installation-georgia) page covers the utilities, the interconnection process and the incentives that apply here. Send the bills through our [proposal request form](/contact) and we will come back with a system size, an installed cost and a payback range before the block grant payment is scheduled, so the decision is yours to make on your own timeline.
### Frequently asked questions
**When will the Hurricane Helene block grant payments reach Georgia farmers?**
The Georgia Department of Agriculture expects to make payments by the end of fall 2026, according to the Georgia Farm Bureau. Applications closed on May 11 and about 5,900 came in, of which more than 4,200 were judged eligible for full review. Because eligible requests total around $900 million against $531.236 million available, every approved applicant will receive the same proportional share of what they were approved for.
**What losses does the Georgia Helene block grant cover?**
Losses from Hurricane Helene that were not compensated by existing USDA programs, for farmers, ranchers and timber producers. Of the applications received, roughly 3,200 concerned timber losses, 1,400 agricultural losses and 630 both. The Georgia Department of Agriculture and the Georgia Forestry Commission administer the review with a team of about 35 employees and contractors. Georgia had asked USDA for more than $1 billion.
**Is there still time to apply for other USDA disaster relief?**
For the Supplemental Disaster Relief Program, yes. The USDA Farm Service Agency extended both Stage 1 and Stage 2 applications for qualifying 2023 and 2024 losses to September 30, 2026, and is allowing producers with quality-related discounts to document those losses with verifiable records. That is a separate program from the Georgia block grant and has its own eligibility rules.
**Can a farm use REAP to add solar or a battery when rebuilding after a storm?**
The USDA Rural Energy for America Program funds renewable energy systems and energy efficiency improvements for agricultural producers and rural small businesses, and a poultry farm rebuilding its power infrastructure is exactly the applicant it was written for. REAP is competitive and applied for through USDA Rural Development, so a grant is never guaranteed. We prepare the technical parts of the application, and a solar array with a battery sized to keep ventilation running through an outage is a common shape for one.
---
## Duke Energy Pee Dee rate increase appeal: what a business can settle while the court decides
Source: https://www.owsolar.com/news/duke-energy-pee-dee-rate-increase-appeal-south-carolina
Topic: Duke Energy Pee Dee rate increase appeal
Last updated: 2026-08-30
Duke Energy Progress has asked the South Carolina Supreme Court to overturn regulators' July 15 denial of a 4% increase for its Pee Dee customers under the state's new rate stabilization law. The court will decide the timing. The part of a commercial bill a facility controls does not wait for a ruling.
The **Duke Energy Pee Dee rate increase appeal** puts a question in front of South Carolina's highest court that most utility customers never see argued: not whether rates can rise, but how soon a new law lets them. Duke Energy Progress has asked the South Carolina Supreme Court to overturn the Public Service Commission's July 15, 2026 decision denying a 4% increase for its Pee Dee customers, according to the SC Daily Gazette. The utility filed the appeal in late July. The state's Department of Consumer Affairs has asked the court to dismiss it, arguing the matter belongs with the Commission. For a business in Florence or Darlington counties the court will decide the timing of the next increase. It will not decide the size of the bill, and that is the part worth acting on.
## What Duke Energy asked for, and what regulators said
The request has a short history. In March 2026 Duke Energy Progress became the first utility in South Carolina to apply under the state's new rate stabilization program, a mechanism the Legislature approved as part of the energy package signed in May 2025. The program had been available only to gas utilities; the 2025 law extended it to electric providers and allows a utility to seek annual rate adjustments for up to five years. Customers can still protest each adjustment, regulators keep the final approval, and the process does not reopen the utility's allowed return, which stands at 9.99% for Duke Energy Progress, according to the Gazette.
Duke asked for 4%, reduced from an initial 6.6%, to take effect in August 2026. On a typical residential bill of 1,000 kWh, which was running about $156 a month, the request followed a previous increase of about $11.23 a month by only 41 days. On July 15 the Public Service Commission denied it, ruling that the utility could not raise rates for a year after first applying under the program.
Duke's statement on the appeal is direct: "The PSC's decision effectively sidelines the Legislature's clear direction to allow more timely cost recovery of prudent utility investments and more predictable customer rate adjustments by refusing to apply the framework as written." The Supreme Court will decide whether the Commission read the law correctly, and when the first adjustment can take effect.
## What the case means for a business in the Pee Dee
Two things are settled regardless of the ruling. The first is direction: the utility has a legal path to annual adjustments for up to five years, and it has already used it once. The second is scope: percentage increases under the program apply across customer classes, so a plant, a warehouse or a farm sees the same percentage on its demand and energy charges that a household sees on its total.
What the court decides is timing, and timing matters less to a commercial account than it sounds. A facility's bill is driven by the demand charge on its highest measured interval, by the energy charge on every kilowatt-hour and, on some schedules, by a power factor penalty. Every one of those scales with the tariff. Whether the next adjustment lands in August 2026 or a year later, the way a business keeps its own bill from tracking the tariff is the same: use less from the meter at the moments that cost the most, and generate part of what it uses.
There is also a constructive reading of the program itself. Annual adjustments are more predictable than a large rate case every few years, and predictability is something a facility can plan against. A business that knows the direction of its utility costs for five years has a clearer basis for a fifteen-year decision about its own roof than one facing a single unknown filing.
## What a South Carolina facility can decide now
We build across the state, and our page on [commercial solar installation in South Carolina](/commercial-solar-installation-south-carolina) sets out the utilities, the interconnection procedures and the incentives that apply here. The sequence on a Pee Dee site is the same as anywhere else.
Start with twelve months of Duke Energy Progress bills. The demand charge line, added up for a year, is the ceiling on what a battery can save. The energy charge, added up the same way, is what solar addresses. If there is a power factor penalty, it is usually the cheapest of the three to remove, which is why we check for it first through [power factor correction services](/services/power-factor-correction) before we quote anything larger.
Solar fixes the cost of daytime energy on the day the system is commissioned, which is exactly the property a rising tariff cannot offer. The demand charge is a separate problem, because the utility can set a facility's billed peak on a cloudy afternoon or after dark; that is the job of [commercial battery storage](/services/battery-storage), sized from interval data so the meter never records the peak. Whether a battery earns its keep on your rate schedule is a question our article on [commercial battery storage payback](/insights/commercial-battery-storage-payback) shows you how to answer from your own bill.
On the incentive side, both solar and paired storage have been eligible for the [30% federal solar tax credit](/incentives/federal-solar-tax-credit) under current rules, subject to construction and placed-in-service deadlines that your accountant should confirm. We prepare the documentation; the credit is claimed on your return.
## What happens next
The Supreme Court will rule on whether the Commission applied the rate stabilization law as written, and the Commission will then take up the adjustment on whatever schedule the ruling sets. A facility that starts its own assessment now will have a design, an installed cost and a payback range in hand before either of those things happens.
Run the [commercial solar savings calculator](/calculator) with an average monthly bill to see the order of magnitude, or send twelve months of bills through our [proposal request form](/contact). We will tell you which part of the coming adjustments your facility can do something about, and, if the numbers on your schedule do not work, we will say that too.
### Frequently asked questions
**What is the Duke Energy Pee Dee rate increase appeal about?**
Duke Energy Progress asked the South Carolina Supreme Court to overturn the Public Service Commission's July 15, 2026 ruling that the utility could not raise rates for a year after first applying under the state's new rate stabilization program. Duke had requested a 4% increase for its Pee Dee customers, reduced from an initial 6.6%, to take effect in August 2026. The appeal was filed in late July, and the Department of Consumer Affairs has asked the court to dismiss it.
**What is South Carolina's Electric Rate Stabilization Act?**
It is part of the energy package the Legislature passed and the governor signed in May 2025. It extended to electric utilities a mechanism previously available only to gas utilities, allowing a utility to seek annual rate adjustments for up to five years under a streamlined review. Customers can still protest, regulators keep the final say on each adjustment, and the process does not reopen the utility's allowed return, which for Duke Energy Progress is 9.99%.
**Which businesses are affected by the Duke Energy Progress case?**
Commercial, industrial and agricultural customers of Duke Energy Progress in South Carolina's Pee Dee region, which includes Florence, Darlington and the surrounding counties. The request would have followed a previous increase of about $11.23 a month on a typical residential bill by only 41 days, according to the SC Daily Gazette, and percentage increases apply across customer classes, so a plant or a farm sees the change on its demand and energy charges.
**What can a Pee Dee business do about its bill before the court rules?**
Read twelve months of bills for the demand charge, the energy charge and any power factor penalty, because each responds to a different measure. On-site solar fixes the cost of daytime energy on the day the system is commissioned, a battery sized from interval data shapes the billed peak, and a power factor correction is often the cheapest fix of the three. None of those depend on how the appeal is decided.
---
## Duke Energy Carolinas resource plan: 18.5 GW of solar and 13 GW of storage by 2041
Source: https://www.owsolar.com/news/duke-energy-carolinas-resource-plan-solar-storage
Topic: Duke Energy Carolinas resource plan solar storage
Last updated: 2026-08-29
Duke Energy's 2026 Carolinas Resource Plan, filed with South Carolina regulators in August, asks to add about 18.5 GW of solar and 13 GW of battery storage by 2041. A utility planning that much storage has decided what flexibility is worth, and a Carolina facility can own the same thing at its own meter.
The **Duke Energy Carolinas resource plan** filed in August 2026 is the longest look ahead a business in North or South Carolina will get at the grid it buys power from. According to Duke Energy's August 17 release, the 2026 Carolinas Resource Plan went to the Public Service Commission of South Carolina, which plans a hearing in April 2027 and an order by June 2027. Industrial Info Resources reports the targets by 2041: about 18.5 GW of solar, roughly 13 GW of battery storage, 8.2 GW of combined-cycle gas, 5.8 GW of combustion turbines, 4.5 GW of nuclear and 300 MW of onshore wind. Behind those numbers sits a five-year, company-wide capital plan of about $103 billion for 2026 to 2030, which Duke describes as more than $1 billion a month.
The plan is a utility document about utility-scale plants, and its effects on a commercial bill will arrive through rate cases and interconnection queues over many years. What it says today is nonetheless useful, because a utility that plans 13 GW of batteries has done the arithmetic on what flexibility is worth.
## What the plan builds, and when
Duke frames the filing as continuity. Tim Pearson, the company's South Carolina president, said in the release that "we've made significant progress executing the strategy outlined in previous resource plans" and that the updated plan "details the additional actions we need to take now." The concrete items the release lists are already moving: a 1,400 MW combined-cycle plant approved for Anderson County, turbine supply agreements with deliveries beginning from a Greenville facility, a request for proposals for 400 MW of standalone battery storage in South Carolina, and active procurement and construction of solar, including RFPs for solar paired with storage.
The filing is aligned with South Carolina's 2025 Energy Security Act, and the company points to more than $5 billion in cumulative cost-saving benefits it attributes to the completion of its merger and to tax credit optimization, plus potential customer savings from federal loan applications. Nuclear appears both as license renewals and uprates at existing plants and as two sites under evaluation for new units, in Cherokee County, South Carolina and Stokes County, North Carolina.
Industrial Info Resources, which tracks projects rather than plans, notes that of the $33 billion of Carolinas projects it follows, most are still pre-construction, and that publicly tracked solar and storage activity in the two states is so far sparse relative to the targets. In other words, the 18.5 GW and the 13 GW are a direction, not a construction schedule.
## Why 13 GW of batteries is the number to notice
Solar at 18.5 GW is the headline, and it makes sense in a region with the load growth Duke describes: the company says the Carolinas continue to rank among the fastest-growing states in the country. The storage figure is the more telling one for a commercial customer. A utility adds batteries for one reason: they let it meet peaks without building generation that runs only a few hundred hours a year. Every megawatt of storage in the plan is a statement that shifting energy in time is cheaper than producing it at the moment of peak demand.
That is exactly the calculation a facility makes when it looks at its own demand charge. The utility's peak and a plant's peak are set by the same physics and priced by the same tariff logic. The difference is scale, and who owns the battery. On the utility side the value shows up, eventually, as system costs spread across all customers. On the customer side it shows up next month, on the demand charge line, for the facility that installed it.
## What a Carolina business can take from it now
Three things, none of which require waiting for the June 2027 order.
First, the direction of the grid in both states is toward more solar, more storage and more firm generation, all of which cost money that rate cases will eventually recover. We wrote recently about the Duke Energy Progress settlement in North Carolina and the Pee Dee appeal in South Carolina; this plan is the long-run version of the same story. Our pages on [commercial solar installation in North Carolina](/commercial-solar-installation-north-carolina) and [commercial solar installation in South Carolina](/commercial-solar-installation-south-carolina) cover the utilities, the interconnection procedures and the incentives that apply in each state.
Second, the flexibility the utility is buying at grid scale is available at facility scale, and it is available now. A battery sized from a plant's interval data discharges into its highest peaks so the billed demand is shaped by the battery rather than by the raw draw of the production floor. Our page on [commercial battery storage installation](/services/battery-storage) explains the sizing, and our own [BatteryCube® commercial battery energy storage system](/batterycube), built around CATL cells, is the equipment we use to do it; 55,000 lb of it runs beside our largest solar array today. Whether a battery pays for itself on a given rate schedule is a question our article on [commercial battery storage payback](/insights/commercial-battery-storage-payback) shows how to answer from the bill itself.
Third, for a site that cannot go dark, the same battery becomes the core of a [commercial microgrid](/services/micro-grids) that islands from the utility and carries the loads you choose. The resource plan is, among other things, a fifteen-year construction program on the grid around you, and a facility with its own islandable supply is indifferent to most of what that program does to a feeder on any given afternoon.
## What to do before the Commission rules
Pull twelve months of Duke Energy bills and the interval data behind them. Find the demand charge and add up a year of it; that is the ceiling on what a battery can save. Find the energy charge and do the same; that is what solar addresses. Send both through our [proposal request form](/contact) and we will come back with a system size, an installed cost, the incentives that apply and a payback range, with the usual note that tax credits are claimed on your return and validated by your accountant. If the numbers on your schedule do not work, we will say so plainly, and you will still know more about your own peak than the plan will ever tell you.
### Frequently asked questions
**What is in the Duke Energy 2026 Carolinas Resource Plan?**
According to Industrial Info Resources, the plan targets about 18.5 GW of solar, roughly 13 GW of battery storage, 8.2 GW of combined-cycle gas, 5.8 GW of combustion-turbine gas, 4.5 GW of nuclear and 300 MW of onshore wind by 2041, to serve North and South Carolina. It sits inside a five-year company-wide capital plan of about $103 billion for 2026 to 2030, which Duke describes as more than $1 billion a month of generation and transmission investment.
**When will South Carolina regulators decide on the plan?**
The Public Service Commission of South Carolina plans a hearing in April 2027 and expects to issue an order by June 2027, according to Duke Energy's August 17 release. The plan is filed in the framework of South Carolina's 2025 Energy Security Act, and the company says it builds on work already underway, including an approved 1,400 MW combined-cycle plant in Anderson County and a request for proposals for 400 MW of standalone battery storage in the state.
**Does a utility-scale plan change anything for a commercial customer?**
Not directly, and not soon. The consequences reach a business through future rate cases, interconnection queues and program design over the next fifteen years. What the plan does say today is that the utility values stored energy enough to plan 13 GW of it, because batteries let it meet peaks without building generation for them. A facility that shaves its own peak with a battery captures that same value on its own bill, under its own control.
**How does a Carolina business own flexibility at its own meter?**
With a battery sized from interval data that discharges into the facility's highest peaks, so the demand charge is set by the battery rather than by the raw load, and with rooftop or ground-mount solar that covers daytime energy at a fixed cost. Where a site cannot go dark, the same battery becomes the core of a microgrid that islands from the utility. The starting point is twelve months of bills and the interval data behind them.
---
## REAP funding opportunity rescinded: what to prepare while USDA rewrites the rules
Source: https://www.owsolar.com/news/reap-funding-opportunity-rescinded-what-to-prepare
Topic: REAP funding opportunity rescinded
Last updated: 2026-08-28
USDA rescinded the 2025-2027 REAP notice of funding opportunity on April 15, 2026 and will accept new applications only after a revised regulation is published. Applications without a signed agreement must be refiled. The pause is time to get the technical report, the interconnection and the tax numbers in order.
The **REAP funding opportunity rescinded** by USDA in April changes the calendar for every farm and rural business that was counting on a grant this year. In [a notice published in the Federal Register on April 15, 2026](https://www.federalregister.gov/documents/2026/04/15/2026-07332/notice-of-rescission-of-funding-opportunity-for-the-rural-energy-for-america-program), the Rural Business-Cooperative Service withdrew the notice of funding opportunity it had issued on October 16, 2024, which covered grant, guaranteed loan and combined grant and guaranteed loan applications under the Rural Energy for America Program for fiscal years 2025, 2026 and 2027. The reason given is short: "The Agency is currently promulgating regulatory changes to the REAP program and available funding will be announced after publication of said changes."
The rescission took effect immediately. Applicants who submitted under the old notice and do not hold a fully executed Financial Assistance Agreement "will be required to submit a new application and must comply with the new regulation," the notice says, and new grant applications will follow a funding notice that USDA will post on its website once the new rule is out.
## What exactly did USDA rescind?
The 2024 notice was the document that opened the application windows, set the scoring and fixed the caps for three fiscal years. Withdrawing it means there is no open window for a REAP grant today and no published date for the next one. It does not repeal the program. REAP is written into the farm bill, and the notice describes the current step as a regulatory rewrite followed by a new funding announcement, in that order.
For the guaranteed loan side the picture is different, because REAP guaranteed loans are handled under the OneRD guarantee regulation rather than under the rescinded notice. On March 9, 2026 USDA published its fiscal year 2026 terms for OneRD programs, and for REAP they are an 80 percent loan guarantee, a 1.0 percent guarantee fee and a 0.25 percent periodic retention fee, applying to loans obligated in fiscal year 2026. Whether a particular lender is taking new REAP guaranteed loan applications right now is a question to put to the lender and to the state Rural Development office. We would not build a project budget on the answer until it is in writing.
## What this means for a farm or rural business in the Southeast
Most of the value in a REAP application is built before the window opens, and that work is not paused. A grant application for a solar system stands on a technical report, an energy assessment tied to the last twelve months of utility bills, a documented interconnection path with the utility, and a firm construction price. Every one of those can be completed this year. A farm that has the package finished files in the first days of a window instead of the last, with time to correct whatever the new regulation asks for.
The pause also gives time to get the tax side right. A REAP grant reduces the basis on which the federal investment tax credit and depreciation are calculated, and the order in which the three are applied is a decision for the owner's accountant. Our guide to [Section 179 and depreciation on a solar system](/incentives/section-179-solar) sets out the moving parts. Settling that arithmetic before the grant window opens means the application can state a financing plan that will survive an audit.
Nothing in the rescission stops a project from going ahead without a grant. A poultry operation or a rural plant that pencils on the power bill alone can build now and claim the credit and depreciation on its own return, and if a grant window opens before construction starts, apply then. What the notice does rule out is filing a grant application today, and we are telling every customer that plainly.
## How we prepare a REAP file
REAP is one of the incentives we work with on [solar for poultry farms](/industries/poultry), a portfolio of over 4.8 MW of installed systems that includes a [450 kW system across fourteen broiler houses](/projects/poultry-450kw-14-house-broiler-solar). In every one of those projects the engineering came first. The energy assessment, the single-line diagram and the interconnection application are the same documents a grant reviewer scores and a utility approves, and we produce them once under one [commercial solar EPC contract](/services/commercial-solar-epc). What a complete application contains, section by section, is set out in our [REAP application guide](/insights/usda-reap-grant-application-guide), and the sizing logic that keeps a poultry system between 26 and 35 kW per house is in [what 4.8 MW of poultry solar taught us](/insights/solar-for-poultry-farms-cost-and-results).
The [REAP grant for solar](/incentives/usda-reap-grant) page on this site describes the program as it has run in past cycles. We will update it the day USDA publishes the new regulation and the funding notice that follows it.
If you farm or run a business in rural Georgia, Florida or the Carolinas and want to be first in line when the window reopens, [send us twelve months of utility bills](/contact). We will produce the energy assessment and the system design now, so the application is finished before the rule is.
### Frequently asked questions
**Is the USDA REAP grant program closed?**
The funding opportunity is rescinded, which is different from the program being repealed. On April 15, 2026 USDA withdrew the October 2024 notice that governed grant, guaranteed loan and combined applications for fiscal years 2025 through 2027, because it is rewriting the program regulation. The notice says the agency will announce the acceptance of new REAP applications after the updated regulation has been published. Until then there is no open window to apply for a grant.
**I submitted a REAP application last year. Is it still in the queue?**
Only if you already hold a fully executed Financial Assistance Agreement. The rescission notice states that any applicant without one will be required to submit a new application that complies with the new regulation. If your file was scored but not obligated, plan to refile. Keep every document you prepared, because most of it, the energy assessment, the vendor quotes and the site information, will be reused.
**Are REAP guaranteed loans still available during the pause?**
The guaranteed loan side of REAP runs under the OneRD guarantee regulation, and USDA published its fiscal year 2026 terms for REAP guaranteed loans in March: an 80 percent guarantee, a 1.0 percent guarantee fee and a 0.25 percent periodic retention fee. Those terms apply to loans obligated in fiscal year 2026. Whether a lender will take an application today is a question for the lender and your state Rural Development office, and we suggest asking both before you plan around it.
**What should I do now if I want a REAP grant for solar?**
Use the time. A competitive REAP application depends on a technical report, an energy assessment tied to twelve months of bills, a utility interconnection path and a firm price, and none of those depend on the window being open. A farm that has them ready files in the first days of a new window rather than the last. We also suggest confirming your Section 179 and tax credit position with your accountant now, since the grant reduces the basis those figures rest on.
**Will the new REAP rule change who qualifies?**
USDA has not published the revised regulation, so nobody can say what it will contain. The rescission notice says only that the agency is promulgating regulatory changes and that funding will be announced afterward. The statutory basics, agricultural producers and rural small businesses, renewable energy systems and energy efficiency improvements, come from the farm bill rather than the regulation, and we would expect an application to still turn on the same technical and financial evidence.
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## Section 179 expensing limit for solar is now $2.5 million: the year-one math
Source: https://www.owsolar.com/news/section-179-expensing-limit-solar
Topic: Section 179 expensing limit solar
Last updated: 2026-08-27
The IRS confirms the Section 179 expensing limit is $2.5 million for property placed in service in tax years beginning after December 31, 2024, with the phase-out starting at $4 million, and 100 percent bonus depreciation is permanent for property acquired after January 19, 2025. Here is what that does to the first year of a commercial solar project.
The **Section 179 expensing limit for solar** and every other kind of business equipment is $2,500,000, and the IRS has now put the figure on [its own summary of the July 2025 tax law](https://www.irs.gov/newsroom/working-families-tax-cuts-businesses). The page, last reviewed on August 13, 2026, states that the law "increased the total amount a taxpayer can elect to expense under IRC § 179 from $1,000,000 to $2,500,000 for section 179 property placed in service in tax years beginning after December 31, 2024." The limit is reduced, but not below zero, by the amount by which the cost of Section 179 property placed in service during the year exceeds $4,000,000, and both amounts are indexed for inflation for tax years beginning after 2025.
The same page confirms the second half of the first-year story. The law provides "a permanent 100-percent additional first year depreciation deduction for qualified property acquired after January 19, 2025." For the first tax year ending after that date a taxpayer may instead elect 40 percent, or 60 percent for long production period property and certain aircraft. For a solar system placed in service in 2026, 100 percent bonus depreciation is the default.
## What does the $2.5 million limit change for a commercial solar project?
Under the old $1,000,000 cap, Section 179 covered a small commercial array outright and only part of a larger one, with the remainder falling to bonus depreciation or the regular schedule. At $2,500,000 the election now reaches the whole cost of most of the systems we build for a single facility, from a dealership roof to a poultry complex to a mid-sized plant, in the year they go into service.
The phase-out is the detail to watch. Because the limit falls dollar for dollar once a business places more than $4,000,000 of qualifying property in service in a year, a company that is also buying trucks, machine tools or a new production line in the same tax year can find the election shrinking. Bonus depreciation has no such cap, which is why the two rules are usually read together rather than chosen between.
Indexing matters too. From tax years beginning after 2025 both the $2,500,000 limit and the $4,000,000 threshold move with inflation, so the figures a business planned around in 2025 will not be the figures on the 2026 return.
## What this means for a business in the Southeast
Take a facility in Georgia or the Carolinas placing a solar system in service in 2026. The federal investment tax credit is claimed on the return for that year. The depreciable cost of the system, after the basis adjustment the credit requires, can then be expensed under Section 179 up to the limit, or taken as 100 percent bonus depreciation, or split, depending on the business's income and its other purchases. All three federal benefits land on the same year's return, which is the reason the first year of a commercial solar project looks nothing like the first year of a generator or a roof.
None of that is automatic. The credit and the deductions are elections the owner makes, subject to the owner's tax position, and state conformity with the federal rules varies. What we can do is give the accountant a clean cost breakdown, a placed-in-service date and the documentation the credit requires, and let the accountant decide the order. How the credit and depreciation interact, and why the sequence is the accountant's call, is set out on our [Section 179 solar depreciation page](/incentives/section-179-solar) and in [stacking the solar tax credit with Section 179](/insights/stacking-solar-tax-credit-section-179). The credit's own conditions and deadlines, which the same law tightened, are on our [federal solar tax credit page](/incentives/federal-solar-tax-credit).
## Where the first-year math has mattered most
The customers who have used the depreciation rules hardest are the ones with steady taxable income and a large flat roof. Across the [Woody Folsom Automotive Group](/projects/woody-folsom-automotive-1mw-solar) we built more than 1 MW over Chevrolet, Ford and Chrysler Dodge dealerships, the kind of owner-occupied, income-producing property the first-year rules are written for. Our page on [solar for car dealerships](/industries/automotive) explains why that industry's load profile suits solar so well, and the [payback analysis for dealerships](/insights/solar-payback-car-dealerships) works through the numbers.
Every system we deliver comes under one [commercial solar EPC contract](/services/commercial-solar-epc), with a single invoice structure that separates equipment, labor and soft costs so the accountant is not reconstructing the basis from a stack of subcontractor bills. That is a small thing until the return is being prepared, and then it is the whole job.
If your business will have taxable income in 2026 and a roof or a lot that could carry a system, the year-one arithmetic is worth running before the year ends. [Use our calculator](/calculator) for a first estimate, or send us twelve months of utility bills and we will size the system and give your accountant the numbers the election needs.
### Frequently asked questions
**What is the Section 179 expensing limit for 2026?**
The IRS states that the maximum amount a taxpayer can elect to expense under Section 179 rose from $1,000,000 to $2,500,000 for Section 179 property placed in service in tax years beginning after December 31, 2024. The limit is reduced, dollar for dollar, by the amount by which the cost of Section 179 property placed in service during the year exceeds $4,000,000, and both figures are indexed for inflation for tax years beginning after 2025.
**Does a commercial solar system qualify for Section 179?**
Solar equipment used in a trade or business is generally depreciable property, and Section 179 is an election the owner makes on the return for the year the equipment is placed in service. Whether it is the best route, and how it combines with the investment tax credit and bonus depreciation, depends on the business's taxable income and its other equipment purchases that year. That is a decision for the owner's accountant, and we provide the cost breakdown they need to make it.
**What changed with bonus depreciation in the 2025 tax law?**
According to the IRS, the law provides a permanent 100 percent additional first-year depreciation deduction for qualified property acquired after January 19, 2025. Before the change the percentage was stepping down each year. A taxpayer may instead elect 40 percent for the first tax year ending after January 19, 2025, or 60 percent for long production period property and certain aircraft. For a solar system placed in service in 2026 the full 100 percent is the default.
**Should I use Section 179 or bonus depreciation on a solar project?**
They reach a similar place by different rules. Section 179 is capped and phases out once a business places more than $4 million of qualifying property in service in a year, while bonus depreciation has no dollar cap but applies to the whole class of property. Which one, or which combination, produces the better result depends on income, state conformity and the other assets bought that year. Bring the solar proposal to your accountant before signing, not after.
**Does the investment tax credit change the amount I can depreciate?**
Yes. The federal investment tax credit and depreciation interact, and the order in which they are applied changes the depreciable basis. The rules are on our Section 179 page and in our guide to stacking the credit with depreciation, and the calculation belongs to the business's tax adviser. We never state a customer's after-tax cost as a promise, because the credit and the deductions are claimed and validated on the customer's own return.
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## North Carolina interconnection fast track for commercial solar up to 2 MW
Source: https://www.owsolar.com/news/north-carolina-interconnection-fast-track-commercial-solar
Topic: North Carolina interconnection fast track
Last updated: 2026-08-26
North Carolina's interconnection procedures give a commercial solar or storage system three paths onto the grid: a simplified process for certified inverter systems up to 20 kW, a fast track with technical screens for certified systems up to 2 MW depending on the line, and a full study for everything else. Which path a project takes is decided at design.
The **North Carolina interconnection fast track** is the path most commercial solar projects in the state take onto the grid, and understanding where its boundaries sit is the difference between an agreement in weeks and a study that runs for a season. The [North Carolina Interconnection Procedures](https://starw1.ncuc.gov/ncuc/ViewFile.aspx?Id=9477ec2b-9065-4d1b-9963-2a4b65a100cb), approved by the North Carolina Utilities Commission in Docket E-100, Sub 101 and applied by Duke Energy Carolinas and Duke Energy Progress to customer-owned generation, set out three routes. A simplified process serves certified inverter-based systems up to 20 kW. A fast track with technical screens serves certified systems up to a limit that depends on the line at the point of interconnection, with an upper bound of 2 MW. Everything else goes to a full study.
Which route a project takes is decided at design, by the size of the system, the voltage of the line it connects to and the condition of that circuit. None of those is a surprise if the engineering is done first.
## What are the three interconnection processes in North Carolina?
The 20 kW inverter process is the simplest. It applies to certified inverter-based generating facilities no larger than 20 kW and runs on a short application and a certificate of completion. A small office, a farm outbuilding or a retail unit fits it. Most of the commercial systems we design do not, because a facility with a meaningful power bill needs more than 20 kW to move it.
The fast track process is the working route for commercial projects. It is open to certified generating facilities up to the size limits in the procedures, which scale with the voltage of the line at the point of interconnection up to 2 MW. Instead of a study, the utility applies a set of technical screens to the request: how the generator's output compares with the load on the circuit, what else is connected to the feeder, how far the site is from the substation and whether the equipment carries the required certification. A project that passes moves to an interconnection agreement. One that does not passes into supplemental review, where the utility examines the circuit more closely, and if it still cannot be approved, into the study process.
The study process is for projects that do not qualify for the first two routes or fail their screens. It carries a deposit, a longer timeline and the possibility of upgrade costs on the utility's side that the customer funds. It is not a bad outcome for a large project on a strong circuit, but it is a slow one, and it is the path to avoid for a project that could have fit the fast track with a different design.
## What this means for a business planning a system in Duke territory
Three decisions made early keep a project on the fast track. The first is size. A system designed to the facility's load and to the interconnection limit of its line, rather than to the roof area, stays inside the screens. The second is the point of interconnection. Where a site has more than one service, or a choice between a lower-voltage and a higher-voltage connection, the choice changes which limit applies. The third is certification and controls: equipment listed to the standards the procedures name, and export limits documented in the application, so the utility is screening the system as it will run.
The cost of getting this right is a few hours of engineering. The cost of getting it wrong is measured in months, and sometimes in upgrade charges nobody budgeted. We have written about the rate side of Duke territory in [what the Duke Energy Progress settlement means for a North Carolina business](/news/duke-energy-progress-rate-settlement-north-carolina-business); the interconnection side is where the schedule is won.
Storage adds one more consideration. A battery added to an approved solar system later is an amended request, and the combined facility is screened again. Filing once with the full system described, even when the battery is a later phase, keeps the project inside the path it qualified for. Our approach to that pairing is on the [commercial battery storage](/services/battery-storage) page.
## How we handle interconnection in North Carolina
Our [commercial solar installation in North Carolina](/commercial-solar-installation-north-carolina) is engineered by a professional engineer licensed in the state and an electrical contractor holding North Carolina's unlimited classification since 1992, with more than thirty years of work on utility interconnections behind the drawings. The interconnection application, the single-line diagram and the technical data sheet are produced in-house under one [commercial solar EPC contract](/services/commercial-solar-epc), and we screen the circuit ourselves before we file, so the utility's review confirms what we already know.
That discipline scales. On the [1.267 MW rooftop system at Samsonite and TUMI](/projects/samsonite-tumi-1267kw-rooftop-solar-battery), the array and 55,000 pounds of storage were designed, permitted and built under one contract, which is the same discipline we bring to a 200 kW roof in Greensboro. The federal investment tax credit that helps pay for a project like it is claimed on the owner's return, and its conditions are on our [federal solar tax credit page](/incentives/federal-solar-tax-credit).
If your facility is in Duke Energy Carolinas or Duke Energy Progress territory and you want to know which interconnection path a system on your site would take, [send us twelve months of utility bills and your service address](/contact). We will size the system to the load and the line, tell you which process it enters, and give you a schedule you can plan around.
### Frequently asked questions
**What is the North Carolina interconnection fast track?**
It is the middle of three paths in the North Carolina Interconnection Procedures, the state-wide rules approved by the Utilities Commission in Docket E-100, Sub 101 that Duke Energy applies to customer-owned generation. The fast track is for certified generating facilities up to a size limit that depends on the voltage of the line at the point of interconnection, with an upper bound of 2 MW. The utility runs a set of technical screens instead of a full engineering study, and a project that passes them receives an interconnection agreement without a study deposit.
**Which process applies to a system under 20 kW?**
The 20 kW inverter process, the simplest of the three. It is open to certified inverter-based generating facilities no larger than 20 kW, uses a short application and a certificate of completion, and is the route for a small office, a farm building or a retail unit. Most commercial projects we design are larger than that and enter the fast track instead, which is why the design work at the start decides which process a project lands in.
**What happens if a project fails the fast track screens?**
It moves to supplemental review, where the utility looks more closely at the specific circuit, and if it still cannot be approved it enters the study process with a deposit and a longer timeline. Failing a screen is usually about the circuit rather than the project: the size of the array relative to the line's minimum load, the distance to the substation, or other generation already on the feeder. Those are facts we can establish before the application is filed.
**How does the interconnection path affect a project's cost and schedule?**
Directly. A project that clears the fast track avoids a study deposit and the months a study adds, and its interconnection agreement arrives on the procedures' fixed review clock. A project that is a few kilowatts over a threshold, or on a weak circuit, can spend a season in study and carry upgrade costs the customer did not budget. Sizing the system with the interconnection limit in view is part of the engineering, not an afterthought.
**Can a battery be added to a fast-track solar system later?**
It can, but it is a new or amended interconnection request, and the combined facility is screened again. Designing solar and storage together, with the export limits and controls documented in one application, keeps the project inside the path it qualified for and avoids a second pass through the utility's queue. We prefer to file once, with the full system described, even when the battery is installed in a later phase.
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## Santee Cooper large load rate: what it means for a South Carolina business
Source: https://www.owsolar.com/news/santee-cooper-large-load-rate-south-carolina-business
Topic: Santee Cooper large load rate
Last updated: 2026-08-25
Santee Cooper's published rate schedules now include an experimental large load schedule that is mandatory for data centers above 50,000 kW and for portable loads above 1,000 kW. For the ordinary South Carolina business on the general service rate, the number that matters is still the $12.21 per kW demand charge, and there is something to do about it.
The **Santee Cooper large load rate** is now part of the utility's published rate book, and it draws a line worth understanding even if your business will never cross it. [Santee Cooper's rate schedules](https://www.santeecooper.com/rates/) include Schedule L-25-LL, an "Experimental Large Load Schedule" attached to the Large Light and Power rate, which is mandatory for customers that operate a large load. The schedule defines that as a data center facility with an aggregate monthly maximum demand greater than 50,000 kW, or a "Mobile Large Load," including cryptocurrency mining, with demand greater than 1,000 kW and equipment that can be moved.
The purpose is plain from the structure. The generation and lines built to serve a 50 MW customer are recovered from that customer, on that schedule, rather than spread across the general service and industrial classes. For the ordinary South Carolina business, the effect is protective. The number on its own bill is unchanged, and that number deserves a closer look.
## What does a business on Santee Cooper's general service rate pay?
Santee Cooper's published GA-25 General Service schedule lists an energy charge of 7.05 cents per kWh on peak and 6.05 cents per kWh off peak, and a demand charge of $12.21 per kW. The on-peak hours are 5 to 9 a.m. from November through March and 3 to 7 p.m. from April through October. A smaller experimental schedule, GA-LL-25, is offered to customers with no more than 50 kW of demand in any three months of the year, trading the demand charge for a higher energy rate of 19.73 cents on peak and 17.73 off peak.
Tariffs change and the current schedule should be confirmed with the utility before any decision, but the shape of GA-25 is what matters. For a facility with 300 kW of peak demand, the demand charge alone comes to about $3,660 a month at the published rate, set by the highest interval of the month rather than by how much energy the plant used. That is the part of the bill an owner can engineer.
## What the Canadys plant adds to the picture
The large load schedule is one response to load growth in the state. The other is new generation. Utility Dive reported in June 2026 that the South Carolina Public Service Commission approved a 2,180 MW gas-fired plant at Canadys, about 40 miles from Charleston, jointly owned by Dominion Energy South Carolina and Santee Cooper at 50 percent each, with a project cost of $5 billion and service expected in mid-2033. The Commission found the project more cost-effective than the alternatives presented and declined to impose a cost cap, noting that the prudency of the spending would be reviewed in a future rate case.
That is the customary path for a large plant, and it means the cost reaches bills over years through rate proceedings. A business that buys less from the grid during the hours that set its demand charge, and less energy overall, reduces its share of whatever those proceedings decide.
## What this means for a facility in Santee Cooper or co-op territory
The summer peak window on GA-25, 3 to 7 p.m. from April through October, overlaps the afternoon output of a solar array. An array sized to the facility's load lowers the demand the meter records in those hours, and with it the charge that the month's highest interval sets. The winter window, 5 to 9 a.m., falls mostly before sunrise, and that is where a battery charged overnight and discharged into the morning peak does the work the array cannot. We explain the arithmetic of that pairing in [when commercial battery storage pays off](/insights/commercial-battery-storage-payback), and the equipment in [commercial battery storage installations](/services/battery-storage).
The same reasoning applies across the state. Our [commercial solar installation in South Carolina](/commercial-solar-installation-south-carolina) page covers the Dominion, Duke, Santee Cooper and cooperative territories, each with its own demand windows, and the design differs from one to the next. Santee Cooper is among the utilities we have worked with, and the [15 kW roof-mounted system at Coastal Carolina University in Conway](/projects/coastal-carolina-university-15kw-solar) sits in the coastal part of the state the utility serves.
A system that trims demand is also a system that earns the federal investment tax credit and first-year depreciation on the owner's return, subject to the owner's tax position, and the conditions are on our [federal solar tax credit page](/incentives/federal-solar-tax-credit). Where a plant's power factor is pulling the demand reading up, [power factor correction](/services/power-factor-correction) is often the cheapest first step, and we check it before sizing anything else.
If your business is in South Carolina and your bill has a demand line you have never been able to move, [run the calculator](/calculator) for a first estimate, then send us twelve months of bills. We will tell you which hours are setting your charge, what an array and a battery would do to them, and what that is worth at the published rate.
### Frequently asked questions
**What is the Santee Cooper large load rate?**
It is an experimental schedule, L-25-LL, attached to Santee Cooper's Large Light and Power rate. According to the utility's published rate schedules it is mandatory for customers that operate a large load, defined as a data center facility with an aggregate monthly maximum demand greater than 50,000 kW, or a mobile large load such as cryptocurrency mining with demand greater than 1,000 kW and portable equipment. It keeps the cost of serving those customers on their own bills.
**Does the large load rate apply to my business?**
Only if you run a data center above 50 megawatts of monthly maximum demand or a portable computing load above one megawatt. A manufacturing plant, warehouse, hotel or farm in Santee Cooper territory is on a general service or large light and power schedule instead. The point of the large load schedule is to keep the new plants and lines built for very large customers from being spread across everyone else's bills.
**What does a South Carolina business on Santee Cooper's general service rate pay?**
Santee Cooper's published GA-25 schedule lists an energy charge of 7.05 cents per kWh on peak and 6.05 cents off peak, plus a demand charge of $12.21 per kW. On-peak hours run 5 to 9 a.m. from November through March and 3 to 7 p.m. from April through October. Rates change, so confirm the current schedule with the utility, but the shape is the point: the bill turns on the highest 15 or 30 minutes of demand each month.
**Why does the Canadys gas plant matter to a business bill?**
Because it is $5 billion of new generation whose cost will be recovered from customers over time. Utility Dive reports the South Carolina Public Service Commission approved the 2,180 MW plant at Canadys in June 2026, jointly owned by Dominion Energy South Carolina and Santee Cooper, with service expected in mid-2033 and prudency of the cost to be reviewed in a future rate case. A business that reduces what it buys from the grid reduces its share of what follows.
**How does solar reduce a demand charge on a summer-peaking tariff?**
The April through October peak window on GA-25 runs 3 to 7 p.m., which overlaps the afternoon output of a solar array, so the array lowers the demand the meter records during the hours that set the charge. The winter window of 5 to 9 a.m. is before sunrise for most of it, which is where a battery discharging into the morning peak does the work the array cannot. Sizing both to the bill is an engineering exercise, not a guess.
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