Charging a 2027 Hyundai Ioniq 9 RWD at home in Utah

At Utah's residential electricity rate of 13.17¢/kWh, a 2027 Hyundai Ioniq 9 RWD (rated 37 kWh per 100 miles by the EPA) costs $4.87 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 69.6% 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 Hyundai Ioniq 9 RWD spend about $731 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,672 saved annually, at this mileage.

Filling up the 2027 Hyundai Ioniq 9 RWD, in dollars

At Utah's rate, fully covering this 2027 Hyundai Ioniq 9 RWD's 335-mile EPA range costs about $16.32 (124 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 Hyundai Ioniq 9 RWD in Utah ranks 3,948 for cost savings versus gas — 1 being the best deal nationally. Separately, the Hyundai Ioniq 9 RWD ranks 193 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

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.