Montana home charging cost for the 2026 BMW i7 xDrive60 Sedan (21 inch Wheels)

A 2026 BMW i7 xDrive60 Sedan (21 inch Wheels) draws 38.8 kWh per 100 miles per the EPA; at Montana's 13.77¢/kWh residential rate that's $5.34 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: 66.7% less than gas per mile, here specifically.

2026 BMW i7 xDrive60 Sedan (21 inch Wheels): yearly cost in Montana

At fueleconomy.gov's default of 15,000 annual miles, the 2026 BMW i7 xDrive60 Sedan (21 inch Wheels) costs roughly $801 a year to charge at home in Montana, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,602 a year.

Cost of a full charge

Covering the 2026 BMW i7 xDrive60 Sedan (21 inch Wheels)'s EPA-rated 308-mile range takes about 119.4 kWh, which costs about $16.44 at Montana's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

2026 BMW i7 xDrive60 Sedan (21 inch Wheels) in Montana, ranked

This combination ranks 6,144 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW i7 xDrive60 Sedan (21 inch Wheels) alone ranks 232 of 400 models for efficiency; Montana alone ranks 10 of 51 states for electricity price.

Getting set up to charge a 2026 BMW i7 xDrive60 Sedan (21 inch Wheels) at home

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

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Montana's 13.77¢/kWh rate ranks 10 of 51 states; the state rate guide lays out the full spread.