Charging a 2027 Rivian R1S Performance (20in) at home in South Dakota

In South Dakota, home electricity runs 14.33¢/kWh — put a 2027 Rivian R1S Performance (20in)'s EPA-rated 47 kWh/100mi against that and 100 miles costs $6.73, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 58% cheaper per mile than gasoline in South Dakota — charging at home is much cheaper than gas here.

2027 Rivian R1S Performance (20in): yearly cost in South Dakota

South Dakota owners putting 15,000 annual miles on a 2027 Rivian R1S Performance (20in) spend about $1,010 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,393 saved annually, at this mileage.

Filling up the 2027 Rivian R1S Performance (20in), in dollars

At South Dakota's rate, fully covering this 2027 Rivian R1S Performance (20in)'s 348-mile EPA range costs about $23.43 (163.5 kWh) — the energy the EPA test actually used, not the battery's rated size.

2027 Rivian R1S Performance (20in) in South Dakota, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1S Performance (20in) in South Dakota ranks 12,253 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Performance (20in) ranks 369 of 400 EV models for raw efficiency, and South Dakota ranks 14 of 51 for cheapest residential electricity.

Getting set up to charge a 2027 Rivian R1S Performance (20in) 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

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Curious how South Dakota's 14.33¢/kWh compares? The guide to charging cost by state ranks every state side by side.