Charging a 2026 Tesla Model 3 Premium AWD at home in Idaho

At Idaho's residential electricity rate of 12.8¢/kWh, a 2026 Tesla Model 3 Premium AWD (rated 26.4 kWh per 100 miles by the EPA) costs $3.38 to drive 100 miles on home charging, against $16.02 for the same distance in a car averaging 25.5 mpg on gasoline at $4.085/gallon. That works out to 78.9% cheaper per mile than gasoline in Idaho — charging at home costs a fraction of what gas would here.

Annual cost, at 15 thousands miles a year

Idaho owners putting 15,000 annual miles on a 2026 Tesla Model 3 Premium AWD spend about $506 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,897 saved annually, at this mileage.

Cost of a full charge

At Idaho's rate, fully covering this 2026 Tesla Model 3 Premium AWD's 346-mile EPA range costs about $11.68 (91.3 kWh) — the energy the EPA test actually used, not the battery's rated size.

2026 Tesla Model 3 Premium AWD in Idaho, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Tesla Model 3 Premium AWD in Idaho ranks 93 for cost savings versus gas — 1 being the best deal nationally. Separately, the Tesla Model 3 Premium AWD ranks 12 of 400 EV models for raw efficiency, and Idaho ranks 3 of 51 for cheapest residential electricity.

Getting set up to charge a 2026 Tesla Model 3 Premium AWD at home

Everything above is the per-mile and per-year cost once a home charger exists — getting one installed is a separate electrical job whose price depends on your panel and wiring, not the state average used here.

Get quotes from local electricians for Level 2 charger installation in Idaho before deciding.

More on how this number was built

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Idaho is one of the cheapest states for home electricity — the guide to why the cost varies so much by state covers what drives that.