2027 Rivian R1T Premium Long Range (22in): home charging cost in South Dakota

At South Dakota's residential electricity rate of 14.33¢/kWh, a 2027 Rivian R1T Premium Long Range (22in) (rated 38.8 kWh per 100 miles by the EPA) costs $5.57 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. Charging at home costs a fraction of what gas would here: 65.3% less than gas per mile, here specifically.

What a year of driving costs

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2027 Rivian R1T Premium Long Range (22in) charged at home in South Dakota costs about $835/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,568 a year.

Filling up the 2027 Rivian R1T Premium Long Range (22in), in dollars

A 2027 Rivian R1T Premium Long Range (22in) needs roughly 163.1 kWh to reach its EPA-rated 420-mile range, which runs about $23.38 at 14.33¢/kWh in South Dakota.

2027 Rivian R1T Premium Long Range (22in) in South Dakota, ranked

This combination ranks 7,284 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1T Premium Long Range (22in) alone ranks 233 of 400 models for efficiency; South Dakota alone ranks 14 of 51 states for electricity price.

Getting set up to charge a 2027 Rivian R1T Premium Long Range (22in) at home

The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.

Line up a few South Dakota electrician quotes for Level 2 install before you commit either way.

Where these figures come from

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.