What it costs to charge a 2026 Rivian R1T All-Terrain Dual Large Plus (20in) in South Dakota

At South Dakota's residential electricity rate of 14.33¢/kWh, a 2026 Rivian R1T All-Terrain Dual Large Plus (20in) (rated 46.9 kWh per 100 miles by the EPA) costs $6.72 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 58.1% cheaper per mile than gasoline in South Dakota — charging at home is much cheaper than gas here.

2026 Rivian R1T All-Terrain Dual Large Plus (20in): yearly cost in South Dakota

Home charging this 2026 Rivian R1T All-Terrain Dual Large Plus (20in) in South Dakota runs about $1,008 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,395 saved annually, at this mileage.

What one full charge costs

$19.62 — that's what South Dakota's 14.33¢/kWh rate puts on the 136.9 kWh a 2026 Rivian R1T All-Terrain Dual Large Plus (20in) needs for its full 292-mile EPA range.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1T All-Terrain Dual Large Plus (20in) in South Dakota ranks 12,211 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1T All-Terrain Dual Large Plus (20in) ranks 367 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.

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

More on how this number was built

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1T All-Terrain Dual Large Plus (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.