I'm pretty much sold on the ID.4, but I've been curious about the cost to charge at home here in San Diego where SDG&E electric rates are relatively high. So I decided to compare the cost of charging an ID.4 with the cost of buying gas for a hybrid CUV/SUV, like the RAV4 hybrid (not Prime). For this comparison, I'm ignoring the fact that an EV means never going to a gas station again and that an EV would require much less maintenance. For a rough estimate, I used my current time-of-use rate plan's summer rate of $0.29846 / kWh for super off-peak (midnight - 6am). If I'm calculating correctly, a full charge (77 kWh) would cost about $23 before whatever extra taxes and fees SDG&E might add. Toyota claims a RAV4 hybrid gets 40MPG combined, so it would take 6.25 gallons to go the same 250 miles as the ID.4 can go on a full charge. At $3.60/gallon (a good price around here), 6.25 gallons would cost $22.50. So not much of a difference. Our electric utility offers a multitude of confusing rate plans, including an EV rate plan that charges only $0.09338/kWh for super off-peak, but you have to pay an extra $16 flat service fee each month, plus rates for on-peak and off-peak are higher than for non-EV rate plans. That's more trouble to calculate than I'm willing to attempt right now. After going through this exercise, I'm still planning on switching from a hybrid to an EV this year.