How Montana compares
Ranked by yearly saving, Montana is 14th of 51. Savings run from $66 in Hawaii to $1,276 in Louisiana. The saving here is $114 more than the $1,084 a driver saves at the U.S. average price.
Gas would have to fall below $1.54 a gallon, from $4.33 now, before charging an EV in Montana stopped saving money.
Public chargers averaged $0.42/kWh nationally on October 16, 2026, 2.8 times the home price here, so every mile charged in public cuts the saving. Charging only at home would raise it to $1,285 a year.
Three of its four neighbors save more: Idaho, North Dakota and Wyoming, led by North Dakota at $1,252.
| State | Electricity | EV saving a year |
|---|---|---|
| North Dakota | 13.41¢ | $1,252 |
| Idaho | 13.73¢ | $1,241 |
| Wyoming | 14.36¢ | $1,219 |
| Montana | 14.99¢ | $1,198 |
| South Dakota | 15.37¢ | $1,185 |
More for Montana
- Solar payback in Montana: a typical system pays back in 14.6 years.
- Heat pump vs gas in Montana: a heat pump saves $96 a year.
What these numbers assume
- 12,000 miles a year.
- An EV that goes 3.5 miles per kWh, with 10% of home charging energy lost between the outlet and the battery.
- 10% of miles charged at public stations at $0.42/kWh, the AAA national average on October 16, 2026.
- A 28 mpg gas car, with regular gas at $4.33 a gallon, the national average on October 12, 2026 (EIA weekly retail price survey).
- Home electricity at the Montana average of 14.99¢/kWh.
Change any of them in the calculator above to match your own bills. The formulas are on the main EV vs gas calculator.
Sources
- Electricity price: EIA Electric Power Monthly, Table 5.6.A (July 2026 data).
- Gasoline: EIA weekly U.S. regular retail price, October 12, 2026.
- Public charging: AAA national average, October 16, 2026.
- Rankings: MeterMath calculation with the same inputs for all 50 states and DC.