Charging a 2026 Rivian R1S Performance Dual Max (20in) at home in Wyoming

A 2026 Rivian R1S Performance Dual Max (20in) draws 42 kWh per 100 miles per the EPA; at Wyoming's 13.88¢/kWh residential rate that's $5.83 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 63.6% cheaper per mile than gasoline in Wyoming — charging at home is much cheaper than gas here.

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

Wyoming owners putting 15,000 annual miles on a 2026 Rivian R1S Performance Dual Max (20in) spend about $874 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,529 saved annually, at this mileage.

Cost of a full charge

At Wyoming's rate, fully covering this 2026 Rivian R1S Performance Dual Max (20in)'s 380-mile EPA range costs about $22.14 (159.5 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 Max (20in) in Wyoming ranks 8,660 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Performance Dual Max (20in) ranks 299 of 400 EV models for raw efficiency, and Wyoming ranks 12 of 51 for cheapest residential electricity.

Getting set up to charge a 2026 Rivian R1S Performance Dual Max (20in) at home

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 Wyoming electrician quotes for Level 2 install before you commit either way.

More on how this number was built

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. At 13.88¢/kWh, Wyoming sits in the middle of the national range — the guide to why charging cost varies by state shows where.