2026 Polestar 3 Long Range Dual Motor (21 Inch Wheels): home charging cost in Iowa

At Iowa's residential electricity rate of 13.77¢/kWh, a 2026 Polestar 3 Long Range Dual Motor (21 Inch Wheels) (rated 37.5 kWh per 100 miles by the EPA) costs $5.17 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. Charging at home costs a fraction of what gas would here: 67.7% less than gas per mile, here specifically.

What a year of driving costs

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Polestar 3 Long Range Dual Motor (21 Inch Wheels) charged at home in Iowa costs about $775/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,628 a year.

Cost of a full charge

A 2026 Polestar 3 Long Range Dual Motor (21 Inch Wheels) needs roughly 117.1 kWh to reach its EPA-rated 312-mile range, which runs about $16.12 at 13.77¢/kWh in Iowa.

How this compares nationally

This combination ranks 5,314 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Polestar 3 Long Range Dual Motor (21 Inch Wheels) alone ranks 206 of 400 models for efficiency; Iowa alone ranks 9 of 51 states for electricity price.

Next step: home charger installation

The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.

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

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2026 Polestar 3 Long Range Dual Motor (21 Inch Wheels)'s cost in Iowa. Iowa's 13.77¢/kWh rate ranks 9 of 51 states; the state rate guide lays out the full spread.