Colorado home charging cost for the 2027 Rivian R1S Performance (22in)

In Colorado, home electricity runs 16.65¢/kWh — put a 2027 Rivian R1S Performance (22in)'s EPA-rated 44.6 kWh/100mi against that and 100 miles costs $7.42, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is much cheaper than gas here: 53.7% less than gas per mile, here specifically.

What a year of driving costs

At fueleconomy.gov's default of 15,000 annual miles, the 2027 Rivian R1S Performance (22in) costs roughly $1,113 a year to charge at home in Colorado, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,290 a year.

What one full charge costs

Covering the 2027 Rivian R1S Performance (22in)'s EPA-rated 371-mile range takes about 165.4 kWh, which costs about $27.53 at Colorado'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 14,034 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Performance (22in) alone ranks 354 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

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Curious how Colorado's 16.65¢/kWh compares? The guide to charging cost by state ranks every state side by side.