Montana home charging cost for the 2026 Rivian R1T Performance Dual Max (22in)

A 2026 Rivian R1T Performance Dual Max (22in) draws 38.8 kWh per 100 miles per the EPA; at Montana's 13.77¢/kWh residential rate that's $5.35 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home costs a fraction of what gas would here: 66.6% less than gas per mile, here specifically.

2026 Rivian R1T Performance Dual Max (22in): yearly cost in Montana

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Rivian R1T Performance Dual Max (22in) costs roughly $802 a year to charge at home in Montana, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,601 a year.

Cost of a full charge

Covering the 2026 Rivian R1T Performance Dual Max (22in)'s EPA-rated 420-mile range takes about 163.1 kWh, which costs about $22.46 at Montana's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

Where this ranks

This combination ranks 6,226 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1T Performance Dual Max (22in) alone ranks 235 of 400 models for efficiency; Montana alone ranks 10 of 51 states for electricity price.

Before you install a home charger in Montana

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.

Line up a few Montana electrician quotes for Level 2 install before you commit either way.

Where these figures come from

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. At 13.77¢/kWh, Montana sits in the middle of the national range — the guide to why charging cost varies by state shows where.