2027 BMW i7 xDrive50 Sedan (20 inch All-Season Tires): home charging cost in Connecticut

At Connecticut's residential electricity rate of 28.82¢/kWh, a 2027 BMW i7 xDrive50 Sedan (20 inch All-Season Tires) (rated 37.4 kWh per 100 miles by the EPA) costs $10.79 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 cheaper than gas here: 32.6% 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 (20 inch All-Season Tires) charged at home in Connecticut costs about $1,619/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $784 a year.

Filling up the 2027 BMW i7 xDrive50 Sedan (20 inch All-Season Tires), in dollars

A 2027 BMW i7 xDrive50 Sedan (20 inch All-Season Tires) needs roughly 132.5 kWh to reach its EPA-rated 354-mile range, which runs about $38.2 at 28.82¢/kWh in Connecticut.

How this compares nationally

This combination ranks 18,176 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW i7 xDrive50 Sedan (20 inch All-Season Tires) alone ranks 204 of 400 models for efficiency; Connecticut alone ranks 45 of 51 states for electricity price.

Getting set up to charge a 2027 BMW i7 xDrive50 Sedan (20 inch All-Season 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 Connecticut 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. Connecticut's 28.82¢/kWh rate ranks 45 of 51 states; the state rate guide lays out the full spread.