Wyoming home charging cost for the 2027 Rivian R1S Quad (22in)
A 2027 Rivian R1S Quad (22in) draws 44.4 kWh per 100 miles per the EPA; at Wyoming's 13.88¢/kWh residential rate that's $6.16 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home is much cheaper than gas here: 61.6% less than gas per mile, here specifically.
2027 Rivian R1S Quad (22in): yearly cost in Wyoming
At fueleconomy.gov's default of 15,000 annual miles, the 2027 Rivian R1S Quad (22in) costs roughly $924 a year to charge at home in Wyoming, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,479 a year.
Cost of a full charge
Covering the 2027 Rivian R1S Quad (22in)'s EPA-rated 374-mile range takes about 166 kWh, which costs about $23.03 at Wyoming's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.
2027 Rivian R1S Quad (22in) in Wyoming, ranked
This combination ranks 10,149 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Quad (22in) alone ranks 348 of 400 models for efficiency; Wyoming alone ranks 12 of 51 states for electricity price.
Next step: home charger installation
The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.
Ask a licensed Wyoming electrician to quote the install before this math becomes a real decision.
Where these figures come from
See the methodology guide for exactly which EIA and EPA figures feed 2027 Rivian R1S Quad (22in)'s cost in Wyoming. At 13.88¢/kWh, Wyoming sits in the middle of the national range — the guide to why charging cost varies by state shows where.