You left out the very important and difference making cost of gasoline. Which over 10 years of driving would more than make up the difference in cost.
So they also have non-tiered plans for electric car owners but those are time of use. If you use them at peak for whatever reason, $$$ again. It's a little tricky.
It won't be as expensive as liquid fuel, to be sure, but the savings over time might not be as high as you'd expect. Offsetting with solar seems to be the popular option around San Jose, where homeowners tend to be particularly affluent.
Note that the CA utilities are working to try to keep milking you even if you have solar. The most loathsome part of it is that the utilities are trying to charge you $10/month/kilowatt-peak for the array you own, even if they push zero energy onto the grid. From my perspective, that's ridiculous rent-seeking. Personally I'm working towards getting off the grid entirely.
I think that's fair. It pays for the meter, the transformer you're connected to, the grid circuit, etc.
However people making electricity by polluting our planet are stealing from us, so should have to pay more, have to disadvantage those people more than you disadvantage solar producers
There's lots to like about electric cars (again, so much so that I'll never buy another ICE), but IMO any cost savings is going to be pretty far down the list. After ten years of EV ownership, I'd almost pay the difference in price so I never, ever have to go out of my way to visit a gas station again. Man, what a hassle that is once out of the habit. But EVs are just generally better vehicles that make an ICE seem like the rattling, primitive contraption that it is. That doesn't sell cars because one needs to own an EV to realize that. So to get folks to the ownership, we tell them it'll save money on gas. Which is technically true, but not the reason to buy EVs.