2026 Tesla Model X: home charging cost in Montana

A 2026 Tesla Model X draws 32.2 kWh per 100 miles per the EPA; at Montana's 13.77¢/kWh residential rate that's $4.43 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home costs a fraction of what gas would here: 72.3% less than gas per mile, here specifically.

Annual cost, at 15 thousands miles a year

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Tesla Model X charged at home in Montana costs about $665/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,738 a year.

Filling up the 2026 Tesla Model X, in dollars

A 2026 Tesla Model X needs roughly 113.4 kWh to reach its EPA-rated 352-mile range, which runs about $15.61 at 13.77¢/kWh in Montana.

Where this ranks

This combination ranks 2,192 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Tesla Model X alone ranks 95 of 400 models for efficiency; Montana alone ranks 10 of 51 states for electricity price.

Before you install a home charger in Montana

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

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. At 13.77¢/kWh, Montana sits in the middle of the national range — the guide to why charging cost varies by state shows where.