2027 Rivian R1S Performance (20in): home charging cost in Colorado

In Colorado, home electricity runs 16.65¢/kWh — put a 2027 Rivian R1S Performance (20in)'s EPA-rated 47 kWh/100mi against that and 100 miles costs $7.82, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is much cheaper than gas here: 51.2% less than gas per mile, here specifically.

What a year of driving costs

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2027 Rivian R1S Performance (20in) charged at home in Colorado costs about $1,174/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,229 a year.

What one full charge costs

A 2027 Rivian R1S Performance (20in) needs roughly 163.5 kWh to reach its EPA-rated 348-mile range, which runs about $27.23 at 16.65¢/kWh in Colorado.

Where this ranks

This combination ranks 14,768 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Performance (20in) alone ranks 369 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.

Get quotes from local electricians for Level 2 charger installation in Colorado before deciding.

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2027 Rivian R1S Performance (20in)'s cost in Colorado. At 16.65¢/kWh, Colorado sits in the middle of the national range — the guide to why charging cost varies by state shows where.