Charging a 2027 Rivian R1S Premium Long Range (20in) at home in Utah

A 2027 Rivian R1S Premium Long Range (20in) draws 42 kWh per 100 miles per the EPA; at Utah's 13.17¢/kWh residential rate that's $5.53 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 65.5% cheaper per mile than gasoline in Utah — charging at home costs a fraction of what gas would here.

Annual cost, at 15 thousands miles a year

Utah owners putting 15,000 annual miles on a 2027 Rivian R1S Premium Long Range (20in) spend about $829 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,574 saved annually, at this mileage.

Filling up the 2027 Rivian R1S Premium Long Range (20in), in dollars

At Utah's rate, fully covering this 2027 Rivian R1S Premium Long Range (20in)'s 380-mile EPA range costs about $21.01 (159.5 kWh) — the energy the EPA test actually used, not the battery's rated size.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1S Premium Long Range (20in) in Utah ranks 7,153 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Premium Long Range (20in) ranks 296 of 400 EV models for raw efficiency, and Utah ranks 4 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 Utah 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 2027 Rivian R1S Premium Long Range (20in)'s cost in Utah. Utah is one of the cheapest states for home electricity — the guide to why the cost varies so much by state covers what drives that.