EV Charge Idaho has some of the cheapest home electricity in the country, 13.37¢ per kWh on average. For a Tesla Model Y that’s about $37 per 1,000 miles, $0.037 a mile. A 30-mpg gas car spends roughly $144 on the same miles.
Electricity: EIA August 2026 · Gas: EIA week of October 12, 2026 · How we calculate
What Idaho drivers pay to charge at home
| Vehicle (EPA efficiency) | Per 1,000 miles | Per year (12,000 mi) |
|---|---|---|
| Tesla Model Y Long Range AWD (27.5 kWh/100 mi) | $37 | $441 |
| Chevrolet Equinox EV AWD (32.6 kWh/100 mi) | $44 | $523 |
| Ford F-150 Lightning 4WD ER1 (47.9 kWh/100 mi) | $64 | $769 |
| Gas car, 30 mpg | $144 | $1,732 |
What’s going on with electricity prices in Idaho
Idaho has some of the cheapest home electricity in the country: 13.37¢ per kWh in August 2026, #47 of 51. Prices rose 10.7% over the past year, against 3.4% nationally.
Hydroelectric dams, especially on the Snake River, supply a large share of Idaho’s power, which has long kept rates low. In dry years, when the rivers run lower, utilities have to buy more power elsewhere, and that can push bills up.
Idaho vs. its neighbors
| State | Price per kWh | Per 1,000 miles (Model Y) | vs. Idaho |
|---|---|---|---|
| Idaho | 13.37¢ | $37 | — |
| Nevada | 12.72¢ | $35 | -5% |
| Utah | 13.31¢ | $37 | -0% |
| Wyoming | 14.43¢ | $40 | +8% |
| Washington | 14.63¢ | $40 | +9% |
| Montana | 15.57¢ | $43 | +16% |
| Oregon | 15.92¢ | $44 | +19% |
Two of Idaho’s six neighbors pay less per kWh. Nevada is the cheapest at 12.72¢; Oregon is the priciest at 15.92¢.
What popular EVs cost to charge in Idaho
| EV | Per 1,000 miles | Per year (12,000 mi) |
|---|---|---|
| Tesla Model Y | $37 | $441 |
| Tesla Model 3 | $40 | $475 |
| Hyundai Ioniq 5 | $42 | $508 |
| Chevrolet Equinox EV | $44 | $523 |
| Ford Mustang Mach-E | $45 | $540 |
| Kia EV9 | $57 | $690 |
| Rivian R1S | $59 | $712 |
| Ford F-150 Lightning | $64 | $769 |
Home charging vs Tesla Superchargers vs gas in Idaho
| How you fuel 1,000 miles (Tesla Model Y) | Cost |
|---|---|
| Home, Idaho average (13.37¢/kWh) | $37 |
| Tesla Supercharger, standard rate ($0.57/kWh) | $157 |
| Tesla Supercharger, member rate (est. $0.40/kWh, $12.99/month fee) | $109 |
| Gas car, 30 mpg ($4.33/gal) | $144 |
In Idaho, a standard-rate Supercharger session costs about 4.3 times as much per kWh as charging at home, and more than the gas a 30-mpg car burns over the same miles. Fast charging is for road trips; the savings come from charging at home.
How to pay less to charge in Idaho
Idaho Power serves most of southern Idaho, Avista and Rocky Mountain Power serve other regions, and cooperatives and city utilities cover the rest. Idaho is not a retail-choice state. Idaho Power has offered a time-of-day option in which off-peak hours cost less.
Idaho Power describes its time-of-day option on its website; other utilities publish their own rates. Run the price through the EV charging cost calculator.
Idaho EV charging FAQ
How much does it cost to charge an EV in Idaho per month?
At the Idaho average of 13.37¢ per kWh, 1,000 miles a month costs about $37 in a Tesla Model Y, $44 in a Chevrolet Equinox EV and $64 in a Ford F-150 Lightning, charging at home.
Is it cheaper to charge an EV than to buy gas in Idaho?
Yes, if you charge at home. A Model Y driving 12,000 miles a year costs about $441 to charge here, against about $1,732 in gas for a 30-mpg car, a difference of roughly $1,290 a year.
How much does a Tesla Supercharger cost in Idaho?
The average standard (non-member) peak price at Idaho Superchargers open to all EVs was $0.57 per kWh in October 2026 (DCFC Tracker). That’s about $157 per 1,000 miles in a Model Y, against $37 at home.
When is the cheapest time to charge in Idaho?
On a standard flat-rate plan the hour doesn’t matter. On a time-of-use plan, the cheapest hours are usually overnight; our time-of-use guide explains how to check your plan. To use your exact rate, try the EV charging cost calculator.