2027 Rivian R1S Premium Long Range (20in): home charging cost in Colorado

A 2027 Rivian R1S Premium Long Range (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.

2027 Rivian R1S Premium Long Range (20in): yearly cost in Colorado

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2027 Rivian R1S Premium Long Range (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 2027 Rivian R1S Premium Long Range (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.

Where this ranks

This combination ranks 13,013 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Premium Long Range (20in) alone ranks 296 of 400 models for efficiency; Colorado alone ranks 30 of 51 states for electricity price.

Getting set up to charge a 2027 Rivian R1S Premium Long Range (20in) at home

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 Colorado before deciding.

Where these figures come from

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Colorado's 16.65¢/kWh rate ranks 30 of 51 states; the state rate guide lays out the full spread.