What it costs to charge a 2027 Hyundai Ioniq 9 RWD in Washington

At Washington's residential electricity rate of 14.35¢/kWh, a 2027 Hyundai Ioniq 9 RWD (rated 37 kWh per 100 miles by the EPA) costs $5.31 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 66.9% cheaper per mile than gasoline in Washington — charging at home costs a fraction of what gas would here.

2027 Hyundai Ioniq 9 RWD: yearly cost in Washington

Home charging this 2027 Hyundai Ioniq 9 RWD in Washington runs about $796 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,607 saved annually, at this mileage.

Cost of a full charge

$17.79 — that's what Washington's 14.35¢/kWh rate puts on the 124 kWh a 2027 Hyundai Ioniq 9 RWD needs for its full 335-mile EPA range.

2027 Hyundai Ioniq 9 RWD in Washington, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Hyundai Ioniq 9 RWD in Washington ranks 6,009 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 Washington ranks 15 of 51 for cheapest residential electricity.

Getting set up to charge a 2027 Hyundai Ioniq 9 RWD at home

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 Washington electrician quotes for Level 2 install before you commit either way.

More on how this number was built

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Curious how Washington's 14.35¢/kWh compares? The guide to charging cost by state ranks every state side by side.