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
32 kW
Solar canopy array
Built for a municipal utility.
New structure
Foundations, columns, beams, deck
The reason canopies cost more per watt.
Orlando
Central Florida site
Wind loading governs the structure.
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.
Build the canopy for the reason, not the kilowatts
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
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.
- The utility and permitting landscape is covered in commercial solar installation in Florida.
- Canopies, roof mounts and ground mounts are all delivered under the same commercial solar EPC contract.
- Before comparing structures on price, check what the 30% commercial solar tax credit does to net cost, since it applies to the installed system rather than the modules alone.