2026 Rivian R1T Dual Large Plus (22in), ID Charging Cost

Idaho home charging cost for the 2026 Rivian R1T Dual Large Plus (22in)

A 2026 Rivian R1T Dual Large Plus (22in) draws 40.9 kWh per 100 miles per the EPA; at Idaho's 12.8¢/kWh residential rate that's $5.24 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: 67.3% less than gas per mile, here specifically.

What a year of driving costs

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Rivian R1T Dual Large Plus (22in) costs roughly $785 a year to charge at home in Idaho, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,618 a year.

Cost of a full charge

Covering the 2026 Rivian R1T Dual Large Plus (22in)'s EPA-rated 330-mile range takes about 135 kWh, which costs about $17.28 at Idaho'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 5,626 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1T Dual Large Plus (22in) alone ranks 280 of 400 models for efficiency; Idaho alone ranks 3 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 Idaho before deciding.

Where these figures come from

Every figure on this page traces to a named EIA or EPA dataset, see the methodology guide. Idaho is one of the cheapest states for home electricity, the guide to why the cost varies so much by state covers what drives that.