Delaware home charging cost for the 2026 BMW i4 eDrive40 Gran Coupe (19 inch Wheels)

At Delaware's residential electricity rate of 17.74¢/kWh, a 2026 BMW i4 eDrive40 Gran Coupe (19 inch Wheels) (rated 31.1 kWh per 100 miles by the EPA) costs $5.52 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. Charging at home costs a fraction of what gas would here: 65.6% less than gas per mile, here specifically.

What a year of driving costs

At fueleconomy.gov's default of 15,000 annual miles, the 2026 BMW i4 eDrive40 Gran Coupe (19 inch Wheels) costs roughly $827 a year to charge at home in Delaware, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,575 a year.

Cost of a full charge

Covering the 2026 BMW i4 eDrive40 Gran Coupe (19 inch Wheels)'s EPA-rated 307-mile range takes about 95.5 kWh, which costs about $16.94 at Delaware's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

Where this ranks

This combination ranks 7,013 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW i4 eDrive40 Gran Coupe (19 inch Wheels) alone ranks 77 of 400 models for efficiency; Delaware alone ranks 33 of 51 states for electricity price.

Next step: home charger installation

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 Delaware electrician quotes for Level 2 install before you commit either way.

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2026 BMW i4 eDrive40 Gran Coupe (19 inch Wheels)'s cost in Delaware. Delaware's 17.74¢/kWh rate ranks 33 of 51 states; the state rate guide lays out the full spread.