Charging a 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) at home in Wisconsin
A 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) draws 36.8 kWh per 100 miles per the EPA; at Wisconsin's 18.99¢/kWh residential rate that's $6.98 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 56.4% cheaper per mile than gasoline in Wisconsin — charging at home is much cheaper than gas here.
What a year of driving costs
Wisconsin owners putting 15,000 annual miles on a 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) spend about $1,047 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,356 saved annually, at this mileage.
Filling up the 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires), in dollars
At Wisconsin's rate, fully covering this 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires)'s 364-mile EPA range costs about $25.41 (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 Wisconsin, ranked
Among all 20,400 state-and-model combinations this site tracks, charging a 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) in Wisconsin ranks 13,040 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 Wisconsin ranks 35 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.
Line up a few Wisconsin electrician quotes for Level 2 install before you commit either way.
More on how this number was built
The methodology guide names the exact EIA and EPA tables behind this page's numbers. Wisconsin's 18.99¢/kWh rate ranks 35 of 51 states; the state rate guide lays out the full spread.