Charging a 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) at home in Illinois

In Illinois, home electricity runs 19.22¢/kWh — put a 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires)'s EPA-rated 36.8 kWh/100mi against that and 100 miles costs $7.07, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 55.9% cheaper per mile than gasoline in Illinois — charging at home is much cheaper than gas here.

2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires): yearly cost in Illinois

Illinois owners putting 15,000 annual miles on a 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) spend about $1,060 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,343 saved annually, at this mileage.

Filling up the 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires), in dollars

At Illinois's rate, fully covering this 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires)'s 364-mile EPA range costs about $25.72 (133.8 kWh) — the energy the EPA test actually used, not the battery's rated size.

2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) in Illinois, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) in Illinois ranks 13,178 for cost savings versus gas — 1 being the best deal nationally. Separately, the BMW i7 xDrive50 Sedan (21 inch Summer Tires) ranks 184 of 400 EV models for raw efficiency, and Illinois ranks 36 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.

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

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. At 19.22¢/kWh, Illinois sits in the middle of the national range — the guide to why charging cost varies by state shows where.