Findings: where an EV actually saves money right now
Original analysis by PlugVsPump from EIA Electric Power Monthly (July 2026) and Gasoline & Diesel Fuel Update (week of 10/19/26). Free to cite with a link back.
Under our default assumptions (0.30 kWh/mi EV, 80% home charging, 28 mpg gas car, 12,000 miles/yr), an EV is cheaper to run than gas in all 51 places (50 states + DC). The biggest annual gap is $1,546 in Washington; the smallest is $489 in Hawaii.
$1,546annual EV savings in Washington (#1)
$489annual EV savings in Hawaii (#51)
$4.28U.S. regular gas, week of 10/19/26
18.19¢U.S. residential electricity, YTD through July
Five things the data show
- Washington is the best EV vs gas deal right now: about 6.2¢/mi for the EV versus 19.0¢/mi for a 28 mpg car, or $1,546/yr at 12k miles. See the Washington page.
- Hawaii is the weakest deal among the 51 (still positive under defaults): $489/yr. High electricity (46.28¢/kWh) and/or regional gas pricing shrink the gap. Hawaii page.
- Nationally, the EV runs about 7.1¢/mi vs 15.3¢/mi for gas, a gap of $988/yr at 12k miles when gas is $4.28 and power is 18.19¢/kWh.
- Electricity price ranks matter. Lowest residential YTD rate: North Dakota at 12.36¢/kWh. Highest: Hawaii at 46.28¢/kWh. Full table on the home page.
- Winter appliances are a separate bill. A 1,500 W space heater for 4 hours costs about $6/mo in North Dakota vs $21/mo in Hawaii (30 days). See cost to run a space heater.
Assumptions and limits are on the methodology page. Change any input on the home calculator; nothing leaves your browser.