What it costs to charge a 2026 Rivian R1S Performance Dual Max (22in) in Wyoming

In Wyoming, home electricity runs 13.88¢/kWh — put a 2026 Rivian R1S Performance Dual Max (22in)'s EPA-rated 39.9 kWh/100mi against that and 100 miles costs $5.54, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 65.4% cheaper per mile than gasoline in Wyoming — charging at home costs a fraction of what gas would here.

Annual cost, at 15 thousands miles a year

Home charging this 2026 Rivian R1S Performance Dual Max (22in) in Wyoming runs about $832 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,571 saved annually, at this mileage.

Cost of a full charge

$22.73 — that's what Wyoming's 13.88¢/kWh rate puts on the 163.7 kWh a 2026 Rivian R1S Performance Dual Max (22in) needs for its full 410-mile EPA range.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Performance Dual Max (22in) in Wyoming ranks 7,238 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Performance Dual Max (22in) ranks 266 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.

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

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. At 13.88¢/kWh, Wyoming sits in the middle of the national range — the guide to why charging cost varies by state shows where.