2027 Rivian R1T Premium Long Range (20in AT): home charging cost in South Dakota

At South Dakota's residential electricity rate of 14.33¢/kWh, a 2027 Rivian R1T Premium Long Range (20in AT) (rated 43.2 kWh per 100 miles by the EPA) costs $6.19 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 is much cheaper than gas here: 61.3% 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 (20in AT) charged at home in South Dakota costs about $929/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,474 a year.

Filling up the 2027 Rivian R1T Premium Long Range (20in AT), in dollars

A 2027 Rivian R1T Premium Long Range (20in AT) needs roughly 159.9 kWh to reach its EPA-rated 370-mile range, which runs about $22.92 at 14.33¢/kWh in South Dakota.

How this compares nationally

This combination ranks 10,347 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1T Premium Long Range (20in AT) alone ranks 332 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 (20in AT) 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

See the methodology guide for exactly which EIA and EPA figures feed 2027 Rivian R1T Premium Long Range (20in AT)'s cost in South Dakota. 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.