What it costs to charge a 2027 Rivian R1S Performance (22in) in South Dakota

At South Dakota's residential electricity rate of 14.33¢/kWh, a 2027 Rivian R1S Performance (22in) (rated 44.6 kWh per 100 miles by the EPA) costs $6.39 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 60.1% cheaper per mile than gasoline in South Dakota — charging at home is much cheaper than gas here.

2027 Rivian R1S Performance (22in): yearly cost in South Dakota

Home charging this 2027 Rivian R1S Performance (22in) in South Dakota runs about $958 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,445 saved annually, at this mileage.

Cost of a full charge

$23.7 — that's what South Dakota's 14.33¢/kWh rate puts on the 165.4 kWh a 2027 Rivian R1S Performance (22in) needs for its full 371-mile EPA range.

2027 Rivian R1S Performance (22in) in South Dakota, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1S Performance (22in) in South Dakota ranks 11,086 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Performance (22in) ranks 354 of 400 EV models for raw efficiency, and South Dakota ranks 14 of 51 for cheapest residential electricity.

Next step: home charger installation

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

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. 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.