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

At Delaware's residential electricity rate of 17.74¢/kWh, a 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) (rated 36.8 kWh per 100 miles by the EPA) costs $6.52 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. That works out to 59.3% cheaper per mile than gasoline in Delaware — charging at home is much cheaper than gas here.

What a year of driving costs

Delaware owners putting 15,000 annual miles on a 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) spend about $978 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,425 saved annually, at this mileage.

Cost of a full charge

At Delaware's rate, fully covering this 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires)'s 364-mile EPA range costs about $23.74 (133.8 kWh) — the energy the EPA test actually used, not the battery's rated size.

2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) in Delaware, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) in Delaware ranks 11,490 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 Delaware ranks 33 of 51 for cheapest residential electricity.

Next step: home charger installation

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.

Ask a licensed Delaware electrician to quote the install before this math becomes a real decision.

More on how this number was built

See the methodology guide for exactly which EIA and EPA figures feed 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires)'s cost in Delaware. Delaware's 17.74¢/kWh rate ranks 33 of 51 states; the state rate guide lays out the full spread.