What it costs to charge a 2027 Rivian R1S Quad (20in AT) in Colorado

A 2027 Rivian R1S Quad (20in AT) draws 50.1 kWh per 100 miles per the EPA; at Colorado's 16.65¢/kWh residential rate that's $8.34 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 47.9% cheaper per mile than gasoline in Colorado — charging at home is much cheaper than gas here.

2027 Rivian R1S Quad (20in AT): yearly cost in Colorado

Home charging this 2027 Rivian R1S Quad (20in AT) in Colorado runs about $1,251 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,152 saved annually, at this mileage.

What one full charge costs

$27.11 — that's what Colorado's 16.65¢/kWh rate puts on the 162.8 kWh a 2027 Rivian R1S Quad (20in AT) needs for its full 325-mile EPA range.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1S Quad (20in AT) in Colorado ranks 15,572 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Quad (20in AT) ranks 390 of 400 EV models for raw efficiency, and Colorado ranks 30 of 51 for cheapest residential electricity.

Before you install a home charger in Colorado

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. Curious how Colorado's 16.65¢/kWh compares? The guide to charging cost by state ranks every state side by side.