That is how it has been done for fifty or more years. In the 60-70s back to earth group, many bought land and used Passive Solar with windows and facing south then added batteries, and the magazine Mother Earth showed them how to do it back then...it worked fine as individual homes.
Not only that, but as terrorism looms, making the system more resilient is a plus. If homes were all self-sustaining, it would be impossible to black out major regions.
Big business will probably always need to be tied to the grid, but at least homes would be better off.
No huge ugly panels on the roof, no crazy racks of batteries oozing acid in the basement . . . just sensible orientation, placement of windows, and LOTS of insulation!
Our power bill was crazy low. When we started having kids and moved to a larger conventional house, we were shocked at the size of our electric bill.
In some municipalities it is currently illegal to not be hooked up to the grid.
There was a lady in Florida that was being sued by a town for collecting her own water and not using the town’s electricity.
This is how governments make use of renewables “feasible. “