In SoCal I pay, at most, 28¢/kWh, but usually ~20¢/kWh with Time of Use [1]. You configure the car and/or EVSE to only charge at night when electricity is cheapest.
[1] https://www.ladwp.com/ladwp/faces/wcnav_externalId/a-fr-elec...
They should also couple a "nationalization" of PG&E with this too. Municipal run power is typically cheaper than investor owned power.