Maryland home charging cost for the 2026 Polestar 3 Long Range Dual Motor (21 Inch Wheels)

At Maryland's residential electricity rate of 21.27¢/kWh, a 2026 Polestar 3 Long Range Dual Motor (21 Inch Wheels) (rated 37.5 kWh per 100 miles by the EPA) costs $7.98 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 is much cheaper than gas here: 50.2% less than gas per mile, here specifically.

Annual cost, at 15 thousands miles a year

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Polestar 3 Long Range Dual Motor (21 Inch Wheels) costs roughly $1,197 a year to charge at home in Maryland, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,206 a year.

What one full charge costs

Covering the 2026 Polestar 3 Long Range Dual Motor (21 Inch Wheels)'s EPA-rated 312-mile range takes about 117.1 kWh, which costs about $24.9 at Maryland's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

Where this ranks

This combination ranks 15,014 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; Maryland alone ranks 39 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.

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

Where these figures come from

The methodology guide names the exact EIA and EPA tables behind this page's numbers. At 21.27¢/kWh, Maryland sits in the middle of the national range — the guide to why charging cost varies by state shows where.