2027 Hyundai Ioniq 9 RWD: home charging cost in Illinois

A 2027 Hyundai Ioniq 9 RWD draws 37 kWh per 100 miles per the EPA; at Illinois's 19.22¢/kWh residential rate that's $7.11 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home is much cheaper than gas here: 55.6% less than gas per mile, here specifically.

What a year of driving costs

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2027 Hyundai Ioniq 9 RWD charged at home in Illinois costs about $1,067/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,336 a year.

Cost of a full charge

A 2027 Hyundai Ioniq 9 RWD needs roughly 124 kWh to reach its EPA-rated 335-mile range, which runs about $23.82 at 19.22¢/kWh in Illinois.

Where this ranks

This combination ranks 13,289 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Hyundai Ioniq 9 RWD alone ranks 193 of 400 models for efficiency; Illinois alone ranks 36 of 51 states for electricity price.

Next step: home charger installation

The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.

Get quotes from local electricians for Level 2 charger installation in Illinois before deciding.

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2027 Hyundai Ioniq 9 RWD's cost in Illinois. Curious how Illinois's 19.22¢/kWh compares? The guide to charging cost by state ranks every state side by side.