Rhode Island home charging cost for the 2026 Polestar 3 Long Range Dual Motor (21 Inch Wheels)
At Rhode Island's residential electricity rate of 29.45¢/kWh, a 2026 Polestar 3 Long Range Dual Motor (21 Inch Wheels) (rated 37.5 kWh per 100 miles by the EPA) costs $11.05 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 cheaper than gas here: 31% 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 $1,658 a year to charge at home in Rhode Island, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $745 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 $34.48 at Rhode Island's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.
2026 Polestar 3 Long Range Dual Motor (21 Inch Wheels) in Rhode Island, ranked
This combination ranks 18,359 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; Rhode Island alone ranks 47 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.
Line up a few Rhode Island electrician quotes for Level 2 install before you commit either way.
Where these figures come from
The methodology guide names the exact EIA and EPA tables behind this page's numbers. Rhode Island has some of the highest residential electricity rates in the country — see the guide to why the cost varies so much by state for the full picture.