Charging a 2027 BMW i5 xDrive40 Sedan (19 inch Wheels) at home in Montana

In Montana, home electricity runs 13.77¢/kWh — put a 2027 BMW i5 xDrive40 Sedan (19 inch Wheels)'s EPA-rated 33.8 kWh/100mi against that and 100 miles costs $4.65, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 71% cheaper per mile than gasoline in Montana — charging at home costs a fraction of what gas would here.

What a year of driving costs

Montana owners putting 15,000 annual miles on a 2027 BMW i5 xDrive40 Sedan (19 inch Wheels) spend about $698 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,705 saved annually, at this mileage.

What one full charge costs

At Montana's rate, fully covering this 2027 BMW i5 xDrive40 Sedan (19 inch Wheels)'s 283-mile EPA range costs about $13.17 (95.6 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 2027 BMW i5 xDrive40 Sedan (19 inch Wheels) in Montana ranks 2,983 for cost savings versus gas — 1 being the best deal nationally. Separately, the BMW i5 xDrive40 Sedan (19 inch Wheels) ranks 119 of 400 EV models for raw efficiency, and Montana ranks 10 of 51 for cheapest residential electricity.

Before you install a home charger in Montana

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 Montana before deciding.

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Curious how Montana's 13.77¢/kWh compares? The guide to charging cost by state ranks every state side by side.