Charging a 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) at home in Connecticut

In Connecticut, home electricity runs 28.82¢/kWh — put a 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires)'s EPA-rated 36.8 kWh/100mi against that and 100 miles costs $10.59, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 33.9% cheaper per mile than gasoline in Connecticut — charging at home is cheaper than gas here.

What a year of driving costs

Connecticut owners putting 15,000 annual miles on a 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) spend about $1,589 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $814 saved annually, at this mileage.

Cost of a full charge

At Connecticut's rate, fully covering this 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires)'s 364-mile EPA range costs about $38.56 (133.8 kWh) — the energy the EPA test actually used, not the battery's rated size.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) in Connecticut ranks 17,972 for cost savings versus gas — 1 being the best deal nationally. Separately, the BMW i7 xDrive50 Sedan (21 inch Summer Tires) ranks 184 of 400 EV models for raw efficiency, and Connecticut ranks 45 of 51 for cheapest residential electricity.

Before you install a home charger in Connecticut

Everything above is the per-mile and per-year cost once a home charger exists — getting one installed is a separate electrical job whose price depends on your panel and wiring, not the state average used here.

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

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Curious how Connecticut's 28.82¢/kWh compares? The guide to charging cost by state ranks every state side by side.