Charging a 2027 Rivian R1S Premium Long Range (22in) at home in South Dakota

A 2027 Rivian R1S Premium Long Range (22in) draws 39.9 kWh per 100 miles per the EPA; at South Dakota's 14.33¢/kWh residential rate that's $5.72 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 64.3% cheaper per mile than gasoline in South Dakota — charging at home is much cheaper than gas here.

Annual cost, at 15 thousands miles a year

South Dakota owners putting 15,000 annual miles on a 2027 Rivian R1S Premium Long Range (22in) spend about $858 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,544 saved annually, at this mileage.

Filling up the 2027 Rivian R1S Premium Long Range (22in), in dollars

At South Dakota's rate, fully covering this 2027 Rivian R1S Premium Long Range (22in)'s 410-mile EPA range costs about $23.47 (163.7 kWh) — the energy the EPA test actually used, not the battery's rated size.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1S Premium Long Range (22in) in South Dakota ranks 8,099 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Premium Long Range (22in) ranks 264 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 Premium Long Range (22in) 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 2027 Rivian R1S Premium Long Range (22in)'s cost in South Dakota. Curious how South Dakota's 14.33¢/kWh compares? The guide to charging cost by state ranks every state side by side.