Illinois home charging cost for the 2027 Subaru Solterra 20 AWD

At Illinois's residential electricity rate of 19.22¢/kWh, a 2027 Subaru Solterra 20 AWD (rated 28.9 kWh per 100 miles by the EPA) costs $5.56 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. Charging at home costs a fraction of what gas would here: 65.3% less than gas per mile, here specifically.

Annual cost, at 15 thousands miles a year

At fueleconomy.gov's default of 15,000 annual miles, the 2027 Subaru Solterra 20 AWD costs roughly $834 a year to charge at home in Illinois, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,569 a year.

Cost of a full charge

Covering the 2027 Subaru Solterra 20 AWD's EPA-rated 278-mile range takes about 80.4 kWh, which costs about $15.45 at Illinois's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

Where this ranks

This combination ranks 7,254 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Subaru Solterra 20 AWD alone ranks 35 of 400 models for efficiency; Illinois alone ranks 36 of 51 states for electricity price.

Before you install a home charger in Illinois

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 Subaru Solterra 20 AWD's cost in Illinois. Illinois's 19.22¢/kWh rate ranks 36 of 51 states; the state rate guide lays out the full spread.