What does it cost to charge an EV in Idaho?
At Idaho’s average electricity rate of 12.3¢/kWh, a typical driver (13,500 mi/yr, mostly home charging) spends about $722 a year — roughly 5.3¢ per mile, and around $928 less than the same miles in a 27 MPG gas car. Run your own numbers below.
Independent estimate for guidance only. Time-of-use rates, your specific EV and public-charging habits will change the real figure.
Why Idaho charging costs what it does
Idaho homes pay about 12.3¢/kWh, which is 6.1¢ below the US average. Because home electricity is the main driver of EV running cost, that puts Idaho drivers toward the cheaper end for charging. Charging more at home (versus public fast-charging at $0.40–0.50/kWh) lowers it further.
Idaho electricity price trend
Average residential rate, monthly, May 2023 – Apr 2026. Up 18% over the period.
Source: U.S. Energy Information Administration (EIA), Electric Power Monthly · range 10.71–13.01¢/kWh
A worked example for Idaho
Average driver: 13,500 miles a year, 3.3 mi/kWh, 85% charged at home.
Gas comparison: 27 MPG at $3.30/gal. Adjust everything in the calculator above.
Cut it further with solar
If you charge at home, your EV runs on whatever your roof or the grid supplies. Pairing an EV with rooftop solar can drop your effective charging cost well below the grid rate — see whether that maths works where you live with our Idaho solar payback calculator.