Charging a 2026 BMW i7 xDrive60 Sedan (19 inch Wheels) at home in Montana

In Montana, home electricity runs 13.77¢/kWh — put a 2026 BMW i7 xDrive60 Sedan (19 inch Wheels)'s EPA-rated 38.4 kWh/100mi against that and 100 miles costs $5.29, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 67% cheaper per mile than gasoline in Montana — charging at home costs a fraction of what gas would here.

Annual cost, at 15 thousands miles a year

Montana owners putting 15,000 annual miles on a 2026 BMW i7 xDrive60 Sedan (19 inch Wheels) spend about $793 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,610 saved annually, at this mileage.

Filling up the 2026 BMW i7 xDrive60 Sedan (19 inch Wheels), in dollars

At Montana's rate, fully covering this 2026 BMW i7 xDrive60 Sedan (19 inch Wheels)'s 311-mile EPA range costs about $16.45 (119.5 kWh) — the energy the EPA test actually used, not the battery's rated size.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 BMW i7 xDrive60 Sedan (19 inch Wheels) in Montana ranks 5,898 for cost savings versus gas — 1 being the best deal nationally. Separately, the BMW i7 xDrive60 Sedan (19 inch Wheels) ranks 224 of 400 EV models for raw efficiency, and Montana ranks 10 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 Montana electrician quotes for Level 2 install before you commit either way.

More on how this number was built

See the methodology guide for exactly which EIA and EPA figures feed 2026 BMW i7 xDrive60 Sedan (19 inch Wheels)'s cost in Montana. Curious how Montana's 13.77¢/kWh compares? The guide to charging cost by state ranks every state side by side.