Charging a 2026 Polestar 4 Long Range Dual Motor at home in Tennessee

A 2026 Polestar 4 Long Range Dual Motor draws 40 kWh per 100 miles per the EPA; at Tennessee's 13.9¢/kWh residential rate that's $5.56 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 65.3% cheaper per mile than gasoline in Tennessee — charging at home costs a fraction of what gas would here.

What a year of driving costs

Tennessee owners putting 15,000 annual miles on a 2026 Polestar 4 Long Range Dual Motor spend about $834 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,569 saved annually, at this mileage.

What one full charge costs

At Tennessee's rate, fully covering this 2026 Polestar 4 Long Range Dual Motor's 280-mile EPA range costs about $15.57 (112 kWh) — the energy the EPA test actually used, not the battery's rated size.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Polestar 4 Long Range Dual Motor in Tennessee ranks 7,292 for cost savings versus gas — 1 being the best deal nationally. Separately, the Polestar 4 Long Range Dual Motor ranks 270 of 400 EV models for raw efficiency, and Tennessee ranks 13 of 51 for cheapest residential electricity.

Before you install a home charger in Tennessee

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 Tennessee 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. Curious how Tennessee's 13.9¢/kWh compares? The guide to charging cost by state ranks every state side by side.