For PG&E it appears they have an EV specific rate plan that is cheaper. It says it is $0.27/kWh for off peak charging.

https://www.pge.com/pge_global/local/images/data/en-us/rate-...

I can't link directly to the tab but its the second tab on this page: https://www.pge.com/en_US/residential/rate-plans/rate-plan-o...

If you're lucky enough to live in Alameda, it has its own municipal power. Their EV rates are significantly cheaper at $0.15/kWh https://www.alamedamp.com/393/TOU-Time-of-Use-Rate-for-EV-Ow...