2027 Rivian R1T Premium Long Range (22in): home charging cost in Wyoming
At Wyoming's residential electricity rate of 13.88¢/kWh, a 2027 Rivian R1T Premium Long Range (22in) (rated 38.8 kWh per 100 miles by the EPA) costs $5.39 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. Charging at home costs a fraction of what gas would here: 66.3% less than gas per mile, here specifically.
Annual cost, at 15 thousands miles a year
Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2027 Rivian R1T Premium Long Range (22in) charged at home in Wyoming costs about $809/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,594 a year.
Cost of a full charge
A 2027 Rivian R1T Premium Long Range (22in) needs roughly 163.1 kWh to reach its EPA-rated 420-mile range, which runs about $22.64 at 13.88¢/kWh in Wyoming.
How this compares nationally
This combination ranks 6,498 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1T Premium Long Range (22in) alone ranks 233 of 400 models for efficiency; Wyoming alone ranks 12 of 51 states for electricity price.
Getting set up to charge a 2027 Rivian R1T Premium Long Range (22in) at home
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
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.