2027 Rivian R1T Performance (20in AT): home charging cost in Wyoming

A 2027 Rivian R1T Performance (20in AT) draws 49.8 kWh per 100 miles per the EPA; at Wyoming's 13.88¢/kWh residential rate that's $6.92 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: 56.8% less than gas per mile, here specifically.

What a year of driving costs

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2027 Rivian R1T Performance (20in AT) charged at home in Wyoming costs about $1,038/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,365 a year.

Filling up the 2027 Rivian R1T Performance (20in AT), in dollars

A 2027 Rivian R1T Performance (20in AT) needs roughly 164 kWh to reach its EPA-rated 329-mile range, which runs about $22.76 at 13.88¢/kWh in Wyoming.

How this compares nationally

This combination ranks 12,898 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1T Performance (20in AT) alone ranks 387 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.

Get quotes from local electricians for Level 2 charger installation in Wyoming before deciding.

Where these figures come from

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Curious how Wyoming's 13.88¢/kWh compares? The guide to charging cost by state ranks every state side by side.