What it costs to charge a 2026 Volvo EX40 Twin in South Dakota

At South Dakota's residential electricity rate of 14.33¢/kWh, a 2026 Volvo EX40 Twin (rated 36 kWh per 100 miles by the EPA) costs $5.16 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. That works out to 67.8% cheaper per mile than gasoline in South Dakota — charging at home costs a fraction of what gas would here.

What a year of driving costs

Home charging this 2026 Volvo EX40 Twin in South Dakota runs about $773 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,630 saved annually, at this mileage.

Cost of a full charge

$13.4 — that's what South Dakota's 14.33¢/kWh rate puts on the 93.5 kWh a 2026 Volvo EX40 Twin needs for its full 260-mile EPA range.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Volvo EX40 Twin in South Dakota ranks 5,278 for cost savings versus gas — 1 being the best deal nationally. Separately, the Volvo EX40 Twin ranks 166 of 400 EV models for raw efficiency, and South Dakota ranks 14 of 51 for cheapest residential electricity.

Getting set up to charge a 2026 Volvo EX40 Twin 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.

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

More on how this number was built

See the methodology guide for exactly which EIA and EPA figures feed 2026 Volvo EX40 Twin's cost in South Dakota. At 14.33¢/kWh, South Dakota sits in the middle of the national range — the guide to why charging cost varies by state shows where.