Charging a 2026 Rivian R1S Dual Large Plus (22in) at home in Colorado

A 2026 Rivian R1S Dual Large Plus (22in) draws 40.9 kWh per 100 miles per the EPA; at Colorado's 16.65¢/kWh residential rate that's $6.81 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 57.5% 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 Dual Large Plus (22in) spend about $1,022 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,381 saved annually, at this mileage.

Cost of a full charge

At Colorado's rate, fully covering this 2026 Rivian R1S Dual Large Plus (22in)'s 330-mile EPA range costs about $22.47 (135 kWh) — the energy the EPA test actually used, not the battery's rated size.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Dual Large Plus (22in) in Colorado ranks 12,465 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Dual Large Plus (22in) ranks 278 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.

Ask a licensed Colorado electrician to quote the install before this math becomes a real decision.

More on how this number was built

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1S Dual Large Plus (22in)'s cost in Colorado. Colorado's 16.65¢/kWh rate ranks 30 of 51 states; the state rate guide lays out the full spread.