Charging a 2026 BMW iX M70 (21 inch Wheels) at home in Montana

In Montana, home electricity runs 13.77¢/kWh — put a 2026 BMW iX M70 (21 inch Wheels)'s EPA-rated 42 kWh/100mi against that and 100 miles costs $5.78, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 63.9% cheaper per mile than gasoline in Montana — charging at home is much cheaper than gas here.

Annual cost, at 15 thousands miles a year

Montana owners putting 15,000 annual miles on a 2026 BMW iX M70 (21 inch Wheels) spend about $867 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,536 saved annually, at this mileage.

Filling up the 2026 BMW iX M70 (21 inch Wheels), in dollars

At Montana's rate, fully covering this 2026 BMW iX M70 (21 inch Wheels)'s 303-mile EPA range costs about $17.52 (127.2 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 iX M70 (21 inch Wheels) in Montana ranks 8,401 for cost savings versus gas — 1 being the best deal nationally. Separately, the BMW iX M70 (21 inch Wheels) ranks 302 of 400 EV models for raw efficiency, and Montana ranks 10 of 51 for cheapest residential electricity.

Getting set up to charge a 2026 BMW iX M70 (21 inch Wheels) at home

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.

Ask a licensed Montana electrician to quote the install before this math becomes a real decision.

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.