1090
Obvious choice
(thelemmy.club)
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Putting them in parking lots is way more TCO.
Risk to other peoples property
You're putting them 20 ft in the air so any maintenance is a lot harder.
Expense for the super sturdy structure to hold them over a car.
The upsides are it keeps the cars protected and if you don't have a field that makes sense...
Hmm, I guess I was thinking that when I was younger and we had flea markets during the weekends in large parking lots that you could shut down a parking lot for a weekend with the shade of the solar panels.