Charging a 2026 Rivian R1T Performance Dual Large (22in) at home in South Dakota

At South Dakota's residential electricity rate of 14.33¢/kWh, a 2026 Rivian R1T Performance Dual Large (22in) (rated 39.5 kWh per 100 miles by the EPA) costs $5.66 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 64.7% 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 2026 Rivian R1T Performance Dual Large (22in) spend about $848 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,554 saved annually, at this mileage.

Filling up the 2026 Rivian R1T Performance Dual Large (22in), in dollars

At South Dakota's rate, fully covering this 2026 Rivian R1T Performance Dual Large (22in)'s 329-mile EPA range costs about $18.61 (129.9 kWh) — the energy the EPA test actually used, not the battery's rated size.

2026 Rivian R1T Performance Dual Large (22in) in South Dakota, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1T Performance Dual Large (22in) in South Dakota ranks 7,766 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1T Performance Dual Large (22in) ranks 253 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.

Get quotes from local electricians for Level 2 charger installation in South Dakota before deciding.

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. 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.