Parking Lot solar makes a huge amount of sense. Not only does it create power, but it creates shade for the parked vehicles and cuts down on the amount of heat absorbing blacktop visible to the sun. The suburbs are absolutely covered in parking lots that could be converted. Nobody is going to complain that the solar array is despoiling the aesthetics of the suburban parking lot either.

Really the only downside is that people will crash their cars into the support structures. It is inevitable, and needs to be accounted for in the design.