Charging a 2026 Rivian R1S All-Terrain Dual Large Plus (20in) at home in Colorado

At Colorado's residential electricity rate of 16.65¢/kWh, a 2026 Rivian R1S All-Terrain Dual Large Plus (20in) (rated 46.9 kWh per 100 miles by the EPA) costs $7.81 to drive 100 miles on home charging, against $16.02 for the same distance in a car averaging 25.5 mpg on gasoline at $4.085/gallon. That works out to 51.3% cheaper per mile than gasoline in Colorado — charging at home is much cheaper than gas here.

What a year of driving costs

Colorado owners putting 15,000 annual miles on a 2026 Rivian R1S All-Terrain Dual Large Plus (20in) spend about $1,171 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,232 saved annually, at this mileage.

Cost of a full charge

At Colorado's rate, fully covering this 2026 Rivian R1S All-Terrain Dual Large Plus (20in)'s 292-mile EPA range costs about $22.8 (136.9 kWh) — the energy the EPA test actually used, not the battery's rated size.

2026 Rivian R1S All-Terrain Dual Large Plus (20in) in Colorado, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S All-Terrain Dual Large Plus (20in) in Colorado ranks 14,750 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S All-Terrain Dual Large Plus (20in) ranks 365 of 400 EV models for raw efficiency, and Colorado ranks 30 of 51 for cheapest residential electricity.

Next step: home charger installation

Everything above is the per-mile and per-year cost once a home charger exists — getting one installed is a separate electrical job whose price depends on your panel and wiring, not the state average used here.

Line up a few Colorado electrician quotes for Level 2 install before you commit either way.

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Colorado's 16.65¢/kWh rate ranks 30 of 51 states; the state rate guide lays out the full spread.