> You ignore that solar on-site coupled with EV chargers on site eliminates a lot of grid transmission losses. In theory a residential complex, employer, retail, or commercial site could set up something like this, pumping most of the energy into the cars parked underneath, and have a fairly small connection to the grid.
How many square yards of panels would one EV charger need an a typical afternoon / evening?
A Solar panel produces about 250W peak per square meter. A parking spot can thus produce maybe three kW. A whole parking lot is probably enough for one or two chargers.