Charging a 2026 Polestar 4 Long Range Single Motor at home in Rhode Island

A 2026 Polestar 4 Long Range Single Motor draws 35 kWh per 100 miles per the EPA; at Rhode Island's 29.45¢/kWh residential rate that's $10.31 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 35.7% cheaper per mile than gasoline in Rhode Island — charging at home is cheaper than gas here.

Annual cost, at 15 thousands miles a year

Rhode Island owners putting 15,000 annual miles on a 2026 Polestar 4 Long Range Single Motor spend about $1,546 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $857 saved annually, at this mileage.

Filling up the 2026 Polestar 4 Long Range Single Motor, in dollars

At Rhode Island's rate, fully covering this 2026 Polestar 4 Long Range Single Motor's 310-mile EPA range costs about $31.95 (108.5 kWh) — the energy the EPA test actually used, not the battery's rated size.

2026 Polestar 4 Long Range Single Motor in Rhode Island, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Polestar 4 Long Range Single Motor in Rhode Island ranks 17,721 for cost savings versus gas — 1 being the best deal nationally. Separately, the Polestar 4 Long Range Single Motor ranks 148 of 400 EV models for raw efficiency, and Rhode Island ranks 47 of 51 for cheapest residential electricity.

Getting set up to charge a 2026 Polestar 4 Long Range Single Motor 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.

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

More on how this number was built

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.