2026 Rivian R1T Dual Max (20in): home charging cost in Colorado

A 2026 Rivian R1T Dual Max (20in) draws 42 kWh per 100 miles per the EPA; at Colorado's 16.65¢/kWh residential rate that's $6.99 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: 56.4% 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 R1T Dual Max (20in) charged at home in Colorado costs about $1,048/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,355 a year.

What one full charge costs

A 2026 Rivian R1T Dual Max (20in) needs roughly 159.5 kWh to reach its EPA-rated 380-mile range, which runs about $26.56 at 16.65¢/kWh in Colorado.

How this compares nationally

This combination ranks 13,018 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1T Dual Max (20in) alone ranks 300 of 400 models for efficiency; Colorado alone ranks 30 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.

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

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1T Dual Max (20in)'s cost in Colorado. Colorado's 16.65¢/kWh rate ranks 30 of 51 states; the state rate guide lays out the full spread.