What it costs to charge a 2027 Rivian R1S Performance (20in) in Utah
In Utah, home electricity runs 13.17¢/kWh — put a 2027 Rivian R1S Performance (20in)'s EPA-rated 47 kWh/100mi against that and 100 miles costs $6.19, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 61.4% cheaper per mile than gasoline in Utah — charging at home is much cheaper than gas here.
2027 Rivian R1S Performance (20in): yearly cost in Utah
Home charging this 2027 Rivian R1S Performance (20in) in Utah runs about $928 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,475 saved annually, at this mileage.
What one full charge costs
$21.54 — that's what Utah's 13.17¢/kWh rate puts on the 163.5 kWh a 2027 Rivian R1S Performance (20in) needs for its full 348-mile EPA range.
Where this ranks
Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1S Performance (20in) in Utah ranks 10,310 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Performance (20in) ranks 369 of 400 EV models for raw efficiency, and Utah ranks 4 of 51 for cheapest residential electricity.
Before you install a home charger in Utah
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
Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. 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.