2027 Hyundai Ioniq 9 AWD Performance: home charging cost in Idaho

A 2027 Hyundai Ioniq 9 AWD Performance draws 40 kWh per 100 miles per the EPA; at Idaho's 12.8¢/kWh residential rate that's $5.12 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home costs a fraction of what gas would here: 68% 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 AWD Performance charged at home in Idaho costs about $768/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,635 a year.

Cost of a full charge

A 2027 Hyundai Ioniq 9 AWD Performance needs roughly 124.4 kWh to reach its EPA-rated 311-mile range, which runs about $15.92 at 12.8¢/kWh in Idaho.

Where this ranks

This combination ranks 5,100 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Hyundai Ioniq 9 AWD Performance alone ranks 267 of 400 models for efficiency; Idaho alone ranks 3 of 51 states for electricity price.

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

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.

Ask a licensed Idaho electrician to quote the install before this math becomes a real decision.

Where these figures come from

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Idaho is one of the cheapest states for home electricity — the guide to why the cost varies so much by state covers what drives that.