Solar for the Masses

I was watching a solar field being built on 2 acres of prime farmland the other day as a thought occurred.
Why not, instead of putting this land to waste, Why not use the space that most of the power is consumed.
How about just lease the space on their customers roofs. I know me & many of my neighbors would be glad to offer up my roof for  leased space or discount utility rate fee.
So instead of the utility spending our  environment green energy fee's(that many are collecting) building a solar station that they can peddle to the power to elsewhere. Why not Spend the money to benefit the consumers directly at the point of use.