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

A 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) draws 36.8 kWh per 100 miles per the EPA; at Maryland's 21.27¢/kWh residential rate that's $7.82 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home is much cheaper than gas here: 51.2% 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 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) charged at home in Maryland costs about $1,173/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,230 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 $28.46 at 21.27¢/kWh in Maryland.

Where this ranks

This combination ranks 14,772 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; Maryland alone ranks 39 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.

Line up a few Maryland electrician quotes for Level 2 install before you commit either way.

Where these figures come from

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Curious how Maryland's 21.27¢/kWh compares? The guide to charging cost by state ranks every state side by side.