It's something like $5-7 to fully charge an EV from 0 where I am (Washington DC suburbs), vs about $50 to fill a tank of gas.
I recently spoke to a cabbie in Madrid that was driving a Tesla, and he said the economics were a no-brainer. He charges at home overnight and once mid-day and his monthly electricity bill was 130 euros. Before that, he was spending over 1,000 euros a month on gas.
That more than makes up for the additional initial cost of having an EV.
If you drive 5k to 10k miles per year though, a hybrid Camry or Prius or equivalent is still going to be cheaper per mile over 20 years compared to an EV due to the huge depreciation in the EV due to battery replacement cost.
Even a RAV4 Prime is probably cheaper.
Those of us lucky enough to have PG&E in California have a different calculation though. As of my latest bill they charge 88c/kWh and I heard they just approved yet another rate increase. We'll probably be paying $1/kWh pretty soon.
It's a bit cheaper after midnight, but still more expensive than nearly everywhere.
Including the car’s depreciation, an EV does not always pencil out versus a gas hybrid unless you do a lot of driving.
Plus a lot of states charge a much higher annual tax for EVs compared to gas hybrids.