What it costs to charge a 2026 Rivian R1S Performance Dual Large Plus (20in) in Wyoming

At Wyoming's residential electricity rate of 13.88¢/kWh, a 2026 Rivian R1S Performance Dual Large Plus (20in) (rated 43.1 kWh per 100 miles by the EPA) costs $5.99 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 62.6% cheaper per mile than gasoline in Wyoming — charging at home is much cheaper than gas here.

2026 Rivian R1S Performance Dual Large Plus (20in): yearly cost in Wyoming

Home charging this 2026 Rivian R1S Performance Dual Large Plus (20in) in Wyoming runs about $898 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,505 saved annually, at this mileage.

Cost of a full charge

$18.97 — that's what Wyoming's 13.88¢/kWh rate puts on the 136.7 kWh a 2026 Rivian R1S Performance Dual Large Plus (20in) needs for its full 317-mile EPA range.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Performance Dual Large Plus (20in) in Wyoming ranks 9,439 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Performance Dual Large Plus (20in) ranks 328 of 400 EV models for raw efficiency, and Wyoming ranks 12 of 51 for cheapest residential electricity.

Before you install a home charger in Wyoming

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.

Get quotes from local electricians for Level 2 charger installation in Wyoming before deciding.

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Wyoming's 13.88¢/kWh rate ranks 12 of 51 states; the state rate guide lays out the full spread.