story
Mounting structure is there, grid supply is there, no issues with weeds/grasses, generally up in the air etc.
Rooftops are unused space.
https://www.lazard.com/perspective/levelized-cost-of-energy-...
Rooftops are unused space, but the land use is generally a small part of the cost. Utility scale solar has real economies of scale compared to one-off small installations on someone's roof.
