Charging a 2026 Volvo EX30 Cross Country (18 Inch Wheels) at home in South Dakota
At South Dakota's residential electricity rate of 14.33¢/kWh, a 2026 Volvo EX30 Cross Country (18 Inch Wheels) (rated 37.8 kWh per 100 miles by the EPA) costs $5.42 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 66.2% cheaper per mile than gasoline in South Dakota — charging at home costs a fraction of what gas would here.
Annual cost, at 15 thousands miles a year
South Dakota owners putting 15,000 annual miles on a 2026 Volvo EX30 Cross Country (18 Inch Wheels) spend about $813 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,590 saved annually, at this mileage.
Cost of a full charge
At South Dakota's rate, fully covering this 2026 Volvo EX30 Cross Country (18 Inch Wheels)'s 203-mile EPA range costs about $11 (76.8 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 Volvo EX30 Cross Country (18 Inch Wheels) in South Dakota ranks 6,577 for cost savings versus gas — 1 being the best deal nationally. Separately, the Volvo EX30 Cross Country (18 Inch Wheels) ranks 212 of 400 EV models for raw efficiency, and South Dakota ranks 14 of 51 for cheapest residential electricity.
Before you install a home charger in South Dakota
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.
Line up a few South Dakota electrician quotes for Level 2 install before you commit either way.
More on how this number was built
Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. South Dakota's 14.33¢/kWh rate ranks 14 of 51 states; the state rate guide lays out the full spread.