2027 Rivian R1T Premium (20in AT): home charging cost in Colorado
A 2027 Rivian R1T Premium (20in AT) draws 44.4 kWh per 100 miles per the EPA; at Colorado's 16.65¢/kWh residential rate that's $7.39 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: 53.9% 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 2027 Rivian R1T Premium (20in AT) charged at home in Colorado costs about $1,108/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,295 a year.
Filling up the 2027 Rivian R1T Premium (20in AT), in dollars
A 2027 Rivian R1T Premium (20in AT) needs roughly 128.2 kWh to reach its EPA-rated 289-mile range, which runs about $21.35 at 16.65¢/kWh in Colorado.
How this compares nationally
This combination ranks 13,954 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1T Premium (20in AT) alone ranks 343 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.
Get quotes from local electricians for Level 2 charger installation in Colorado before deciding.
Where these figures come from
The methodology guide names the exact EIA and EPA tables behind this page's numbers. At 16.65¢/kWh, Colorado sits in the middle of the national range — the guide to why charging cost varies by state shows where.