There may be advantages if you are using it to run an air conditioner somewhere sunny. Peak output will sync up to peak usage, and you won't need to take the lo

There may be advantages if you are using it to run an air conditioner somewhere sunny. Peak output will sync up to peak usage, and you won't need to take the losses stepping it up and down for distribution. There might be a bit of conspicuous environmentalism, but it's probably mostly about permitting and property rights issues. No one would lease you the roof for $50/month so that you can install panels over them, but they'll happily install their own.