What it costs to charge a 2026 BMW i7 M70 xDrive Sedan (20 inch Wheels) in Delaware

A 2026 BMW i7 M70 xDrive Sedan (20 inch Wheels) draws 45.1 kWh per 100 miles per the EPA; at Delaware's 17.74¢/kWh residential rate that's $7.99 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 50.1% cheaper per mile than gasoline in Delaware — charging at home is much cheaper than gas here.

What a year of driving costs

Home charging this 2026 BMW i7 M70 xDrive Sedan (20 inch Wheels) in Delaware runs about $1,199 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,204 saved annually, at this mileage.

Cost of a full charge

$21.34 — that's what Delaware's 17.74¢/kWh rate puts on the 120.3 kWh a 2026 BMW i7 M70 xDrive Sedan (20 inch Wheels) needs for its full 267-mile EPA range.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 BMW i7 M70 xDrive Sedan (20 inch Wheels) in Delaware ranks 15,039 for cost savings versus gas — 1 being the best deal nationally. Separately, the BMW i7 M70 xDrive Sedan (20 inch Wheels) ranks 360 of 400 EV models for raw efficiency, and Delaware ranks 33 of 51 for cheapest residential electricity.

Getting set up to charge a 2026 BMW i7 M70 xDrive Sedan (20 inch Wheels) at home

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.

Line up a few Delaware electrician quotes for Level 2 install before you commit either way.

More on how this number was built

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Curious how Delaware's 17.74¢/kWh compares? The guide to charging cost by state ranks every state side by side.