South Dakota home charging cost for the 2026 Rivian R1T Quad Max (20in AT)

In South Dakota, home electricity runs 14.33¢/kWh — put a 2026 Rivian R1T Quad Max (20in AT)'s EPA-rated 50.1 kWh/100mi against that and 100 miles costs $7.18, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is much cheaper than gas here: 55.2% less than gas per mile, here specifically.

What a year of driving costs

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Rivian R1T Quad Max (20in AT) costs roughly $1,077 a year to charge at home in South Dakota, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,326 a year.

What one full charge costs

Covering the 2026 Rivian R1T Quad Max (20in AT)'s EPA-rated 325-mile range takes about 162.8 kWh, which costs about $23.33 at South Dakota's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

2026 Rivian R1T Quad Max (20in AT) in South Dakota, ranked

This combination ranks 13,504 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1T Quad Max (20in AT) alone ranks 393 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.

Ask a licensed South Dakota electrician to quote the install before this math becomes a real decision.

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1T Quad Max (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.