What it costs to charge a 2026 Polestar 3 Long Range Dual Motor (21 Inch Wheels) in Idaho

A 2026 Polestar 3 Long Range Dual Motor (21 Inch Wheels) draws 37.5 kWh per 100 miles per the EPA; at Idaho's 12.8¢/kWh residential rate that's $4.8 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 70% 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

Home charging this 2026 Polestar 3 Long Range Dual Motor (21 Inch Wheels) in Idaho runs about $721 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,682 saved annually, at this mileage.

Filling up the 2026 Polestar 3 Long Range Dual Motor (21 Inch Wheels), in dollars

$14.99 — that's what Idaho's 12.8¢/kWh rate puts on the 117.1 kWh a 2026 Polestar 3 Long Range Dual Motor (21 Inch Wheels) needs for its full 312-mile EPA range.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Polestar 3 Long Range Dual Motor (21 Inch Wheels) in Idaho ranks 3,621 for cost savings versus gas — 1 being the best deal nationally. Separately, the Polestar 3 Long Range Dual Motor (21 Inch Wheels) ranks 206 of 400 EV models for raw efficiency, and Idaho ranks 3 of 51 for cheapest residential electricity.

Before you install a home charger in Idaho

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.

Ask a licensed Idaho electrician to quote the install before this math becomes a real decision.

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.