District of Columbia home charging cost for the 2026 BMW i4 xDrive40 Gran Coupe (18 inch Wheels)

A 2026 BMW i4 xDrive40 Gran Coupe (18 inch Wheels) draws 33.4 kWh per 100 miles per the EPA; at District of Columbia's 24.54¢/kWh residential rate that's $8.2 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home is much cheaper than gas here: 48.8% less than gas per mile, here specifically.

2026 BMW i4 xDrive40 Gran Coupe (18 inch Wheels): yearly cost in District of Columbia

At fueleconomy.gov's default of 15,000 annual miles, the 2026 BMW i4 xDrive40 Gran Coupe (18 inch Wheels) costs roughly $1,230 a year to charge at home in District of Columbia, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,173 a year.

Filling up the 2026 BMW i4 xDrive40 Gran Coupe (18 inch Wheels), in dollars

Covering the 2026 BMW i4 xDrive40 Gran Coupe (18 inch Wheels)'s EPA-rated 287-mile range takes about 95.9 kWh, which costs about $23.53 at District of Columbia'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 15,341 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; District of Columbia alone ranks 42 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 District of Columbia 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. District of Columbia's 24.54¢/kWh rate ranks 42 of 51 states; the state rate guide lays out the full spread.