Charging a 2026 Rivian R1S Performance Dual Large Plus (22in) at home in Wyoming

A 2026 Rivian R1S Performance Dual Large Plus (22in) draws 40.9 kWh per 100 miles per the EPA; at Wyoming's 13.88¢/kWh residential rate that's $5.68 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 64.6% cheaper per mile than gasoline in Wyoming — charging at home is much cheaper than gas here.

2026 Rivian R1S Performance Dual Large Plus (22in): yearly cost in Wyoming

Wyoming owners putting 15,000 annual miles on a 2026 Rivian R1S Performance Dual Large Plus (22in) spend about $852 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,551 saved annually, at this mileage.

Filling up the 2026 Rivian R1S Performance Dual Large Plus (22in), in dollars

At Wyoming's rate, fully covering this 2026 Rivian R1S Performance Dual Large Plus (22in)'s 330-mile EPA range costs about $18.74 (135 kWh) — the energy the EPA test actually used, not the battery's rated size.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Performance Dual Large Plus (22in) in Wyoming ranks 7,871 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Performance Dual Large Plus (22in) ranks 279 of 400 EV models for raw efficiency, and Wyoming ranks 12 of 51 for cheapest residential electricity.

Next step: home charger installation

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.