2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires): home charging cost in Maine

A 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) draws 36.8 kWh per 100 miles per the EPA; at Maine's 29.67¢/kWh residential rate that's $10.91 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home is cheaper than gas here: 31.9% 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 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) charged at home in Maine costs about $1,636/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $767 a year.

Filling up the 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires), in dollars

A 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) needs roughly 133.8 kWh to reach its EPA-rated 364-mile range, which runs about $39.7 at 29.67¢/kWh in Maine.

How this compares nationally

This combination ranks 18,251 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW i7 xDrive50 Sedan (21 inch Summer Tires) alone ranks 184 of 400 models for efficiency; Maine alone ranks 48 of 51 states for electricity price.

Getting set up to charge a 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) 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.

Get quotes from local electricians for Level 2 charger installation in Maine before deciding.

Where these figures come from

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Maine has some of the highest residential electricity rates in the country — see the guide to why the cost varies so much by state for the full picture.