Solar carports

The first is a canopy built for solar: engineered steel columns, footings poured to hold a Colorado snow and wind load, and panels that are the roof. That’s a real structure with a building permit, engineering and a foundation crew before the electrician arrives.

The second is panels on an existing carport. Most residential carports are light aluminum or a few 4-by-4 posts with a sheet-metal or lattice top. They were designed to keep sun off a car, not to carry three pounds per square foot of panels plus a foot of wet spring snow. Some steel-framed carports pass an engineering check; most aluminum ones don’t. We won’t mount on a structure that hasn’t been checked, and we’ll say so up front rather than at the permit stage.

Industry-wide, solar canopies cost substantially more per watt than roof or ground-mount arrays, commonly on the order of a third to a half more or higher depending on the structure, because the steel, footings and engineering come with it. A roof array uses a structure you already own; a ground mount uses a few posts in the dirt. A carport builds a roof to hold the panels.

For a home, that premium usually only makes sense when there is no usable roof and no open ground, or when you genuinely want a covered parking structure and would build one anyway. If you’d be building a carport regardless, the incremental cost of making it a solar carport is much closer to a normal array, and then it can pencil. If the only reason for the structure is the solar, a ground mount almost always wins.

The federal residential credit is gone for systems placed in service after 2025, which makes the premium harder to absorb on a home. Commercial canopies still have the §48E business credit for projects placed in service by the end of 2027 (or begun by July 4, 2026 for a longer window) and 100% bonus depreciation, as of September 2026; confirm with your tax advisor. That’s a large part of why parking-lot canopies pencil for businesses and rarely for homeowners.

Where carports shine is a business with a big parking lot and a roof that’s full, shaded or not structurally suitable. A canopy over 20 or 50 parking stalls is a sizable array on land you already pave and maintain, it shades customers’ and employees’ cars, and it’s the natural place to put EV chargers because the conduit and the panels share a structure. Multifamily buildings, offices, retail centers and dealerships are the usual fits.

Canopies also fix the ‘big roof, small load’ problem in reverse: a building with a large daytime load and a small or unusable roof can add real capacity over the lot. We model the canopy against the building’s demand-charge profile, and if you’re under Denver’s building performance standard, the production counts toward it.

A canopy roof sheds snow onto whatever is under its edge, so drip and slide zones have to be designed around walkways and parked cars. Front Range ground snow loads are significant and mountain-town loads much more so; the structure is engineered for your jurisdiction’s number, which is one reason canopies aren’t cheap. Low-tilt canopies hold snow longer and lose winter production; steeper tilt sheds better but raises the high side and the steel.

Hail is where a carport earns some of its keep: panels tested to roughly one-inch hail protect the cars beneath, which on the Front Range is not a trivial benefit. Very large hail can still damage panels; the array is insured like the rest of the property. Wind uplift on an open-sided canopy is larger than on a roof array, and the footings reflect it.

We start with the cheaper options. If a roof face or a patch of ground can carry the array you need, we quote that first and show the canopy as a comparison. If neither exists, or you’d build a carport anyway, we price the canopy honestly with the structure, engineering and electrical separated so you can see where the money goes.

For an existing carport, we ask for photos of the framing and footings and, if it looks plausible, get an engineer’s opinion before quoting. Most residential aluminum carports end the conversation there, and we’d rather tell you that on day one than after a design deposit.