2026 Rivian R1S All-Terrain Dual Max (20in): home charging cost in Wyoming

In Wyoming, home electricity runs 13.88¢/kWh — put a 2026 Rivian R1S All-Terrain Dual Max (20in)'s EPA-rated 43.2 kWh/100mi against that and 100 miles costs $6, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is much cheaper than gas here: 62.5% 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 2026 Rivian R1S All-Terrain Dual Max (20in) charged at home in Wyoming costs about $900/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,503 a year.

What one full charge costs

A 2026 Rivian R1S All-Terrain Dual Max (20in) needs roughly 159.9 kWh to reach its EPA-rated 370-mile range, which runs about $22.2 at 13.88¢/kWh in Wyoming.

How this compares nationally

This combination ranks 9,512 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S All-Terrain Dual Max (20in) alone ranks 333 of 400 models for efficiency; Wyoming alone ranks 12 of 51 states for electricity price.

Getting set up to charge a 2026 Rivian R1S All-Terrain Dual Max (20in) 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

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1S All-Terrain Dual Max (20in)'s cost in Wyoming. Wyoming's 13.88¢/kWh rate ranks 12 of 51 states; the state rate guide lays out the full spread.