2026 BMW iX M70 (22 inch Wheels): home charging cost in Montana

At Montana's residential electricity rate of 13.77¢/kWh, a 2026 BMW iX M70 (22 inch Wheels) (rated 44.5 kWh per 100 miles by the EPA) costs $6.13 to drive 100 miles on home charging, against $16.02 for the same distance in a car averaging 25.5 mpg on gasoline at $4.085/gallon. Charging at home is much cheaper than gas here: 61.8% less than gas per mile, here specifically.

What a year of driving costs

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 BMW iX M70 (22 inch Wheels) charged at home in Montana costs about $919/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,484 a year.

Cost of a full charge

A 2026 BMW iX M70 (22 inch Wheels) needs roughly 126.3 kWh to reach its EPA-rated 284-mile range, which runs about $17.4 at 13.77¢/kWh in Montana.

2026 BMW iX M70 (22 inch Wheels) in Montana, ranked

This combination ranks 9,965 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW iX M70 (22 inch Wheels) alone ranks 353 of 400 models for efficiency; Montana alone ranks 10 of 51 states for electricity price.

Next step: home charger installation

The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.

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

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2026 BMW iX M70 (22 inch Wheels)'s cost in Montana. At 13.77¢/kWh, Montana sits in the middle of the national range — the guide to why charging cost varies by state shows where.