2026 BMW i4 xDrive40 Gran Coupe (18 inch Wheels): home charging cost in Delaware

In Delaware, home electricity runs 17.74¢/kWh — put a 2026 BMW i4 xDrive40 Gran Coupe (18 inch Wheels)'s EPA-rated 33.4 kWh/100mi against that and 100 miles costs $5.93, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is much cheaper than gas here: 63% 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 2026 BMW i4 xDrive40 Gran Coupe (18 inch Wheels) charged at home in Delaware costs about $889/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,514 a year.

What one full charge costs

A 2026 BMW i4 xDrive40 Gran Coupe (18 inch Wheels) needs roughly 95.9 kWh to reach its EPA-rated 287-mile range, which runs about $17.01 at 17.74¢/kWh in Delaware.

How this compares nationally

This combination ranks 9,033 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW i4 xDrive40 Gran Coupe (18 inch Wheels) alone ranks 114 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 xDrive40 Gran Coupe (18 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.