The problem right now is that if you look at it economically rooftop solar doesn't make a lot of sense and is mainly being driven by subsidies (which are being

The problem right now is that if you look at it economically rooftop solar doesn't make a lot of sense and is mainly being driven by subsidies (which are being paid for by everyone else). My guess is that large scale commercial solar will end up generally more economical than rooftop solar.