Valet service, move the cars
Valet service, move the cars to the charging spots. Each charger occupied 2 hours would charge 6 cars overnight and more during the day. The service could monitor the charge levels and bring cars over as needed or requested. 110V at each parking spot would work if added to new construction codes for MUD. Humans would have to move the cars for now however eventually a lot of the cars will drive themselves to get charged. Could also be done at large parking lots and structures at employers, valets and new construction codes with 110v at each spot.