An EV plan is a
"premium-mediocre" benefit/handout to the midwit managerial class who can't otherwise afford the top-tier energy rates they use to charge their EVs.
Much of your rate depends on your usage since there are 3 tiers. If you run your A/C and other stuff, you're quickly in the top tier where you pay $.40/kWh in the summer. There was an article on the local news where SDGE had automatically-enrolled a lot of people in some other power-buying plan that doubled their rates from that.
At any rate, i have solar, don't run my A/C and don't have an EV so I pay very little or often get a rebate. However, I've found that the power generation capacity has been continually going down and they're always re-jiggering rates and peak usage hours in a "heads they win/tails you lose" whether you have solar or use a lot of power.