2026 Rivian R1S Dual Large (22in): home charging cost in Colorado

In Colorado, home electricity runs 16.65¢/kWh — put a 2026 Rivian R1S Dual Large (22in)'s EPA-rated 39.5 kWh/100mi against that and 100 miles costs $6.57, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is much cheaper than gas here: 59% 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 Dual Large (22in) charged at home in Colorado costs about $986/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,417 a year.

Cost of a full charge

A 2026 Rivian R1S Dual Large (22in) needs roughly 129.9 kWh to reach its EPA-rated 329-mile range, which runs about $21.62 at 16.65¢/kWh in Colorado.

2026 Rivian R1S Dual Large (22in) in Colorado, ranked

This combination ranks 11,650 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Dual Large (22in) alone ranks 250 of 400 models for efficiency; Colorado alone ranks 30 of 51 states for electricity price.

Before you install a home charger in Colorado

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 R1S Dual Large (22in)'s cost in Colorado. Colorado's 16.65¢/kWh rate ranks 30 of 51 states; the state rate guide lays out the full spread.