The technology and the means are there - whats required is the willingness to adopt to the self-powered lifestyle.
Many, many folks have done this - stepped off the grid and live on self-harvested local energy sources - however, the grid is powerful.
It is difficult for entire cities to do away with it so rapidly .. at least until PV harvesting gets a significant order or two cheaper and more efficient…
I think it’s pretty obvious that electric transportation needs to fully adopt integrated energy harvesting. This seems to be an obvious legislative low-hanging fruit.