2026 Rivian R1T Dual Standard (20in): home charging cost in South Dakota

In South Dakota, home electricity runs 14.33¢/kWh — put a 2026 Rivian R1T Dual Standard (20in)'s EPA-rated 42.9 kWh/100mi against that and 100 miles costs $6.14, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is much cheaper than gas here: 61.7% less than gas per mile, here specifically.

2026 Rivian R1T Dual Standard (20in): yearly cost in South Dakota

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Rivian R1T Dual Standard (20in) charged at home in South Dakota costs about $921/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,481 a year.

Cost of a full charge

A 2026 Rivian R1T Dual Standard (20in) needs roughly 110.6 kWh to reach its EPA-rated 258-mile range, which runs about $15.85 at 14.33¢/kWh in South Dakota.

2026 Rivian R1T Dual Standard (20in) in South Dakota, ranked

This combination ranks 10,076 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1T Dual Standard (20in) alone ranks 313 of 400 models for efficiency; South Dakota alone ranks 14 of 51 states for electricity price.

Next step: home charger installation

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 2026 Rivian R1T Dual Standard (20in)'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.