What it costs to charge a 2027 Rivian R1T Premium (20in AT) in South Dakota

In South Dakota, home electricity runs 14.33¢/kWh — put a 2027 Rivian R1T Premium (20in AT)'s EPA-rated 44.4 kWh/100mi against that and 100 miles costs $6.36, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 60.3% cheaper per mile than gasoline in South Dakota — charging at home is much cheaper than gas here.

What a year of driving costs

Home charging this 2027 Rivian R1T Premium (20in AT) in South Dakota runs about $954 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,449 saved annually, at this mileage.

Cost of a full charge

$18.37 — that's what South Dakota's 14.33¢/kWh rate puts on the 128.2 kWh a 2027 Rivian R1T Premium (20in AT) needs for its full 289-mile EPA range.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1T Premium (20in AT) in South Dakota ranks 10,912 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1T Premium (20in AT) ranks 343 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

See the methodology guide for exactly which EIA and EPA figures feed 2027 Rivian R1T Premium (20in AT)'s cost in South Dakota. South Dakota's 14.33¢/kWh rate ranks 14 of 51 states; the state rate guide lays out the full spread.