text: You don't want this.  For maximum decrease of fossil fuel, we need to have PV on as many roofs as possible plus storage (e.g. pumped hydro or some such) and have everyone connected to the grid.  Not all businesses and tall buildings have the area to supply their own power.  And energy storage can be done more cheaply cooperatively.
  
  If we make each house stand alone with regard to electricity, we'll have to oversize each home's PV and storage which is a waste of money.