What it costs to charge a 2026 BMW i7 M70 xDrive Sedan (21 inch Wheels) in New Hampshire

A 2026 BMW i7 M70 xDrive Sedan (21 inch Wheels) draws 42.5 kWh per 100 miles per the EPA; at New Hampshire's 26.83¢/kWh residential rate that's $11.39 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 28.9% cheaper per mile than gasoline in New Hampshire — charging at home is cheaper than gas here.

Annual cost, at 15 thousands miles a year

Home charging this 2026 BMW i7 M70 xDrive Sedan (21 inch Wheels) in New Hampshire runs about $1,708 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $695 saved annually, at this mileage.

What one full charge costs

$32.46 — that's what New Hampshire's 26.83¢/kWh rate puts on the 121 kWh a 2026 BMW i7 M70 xDrive Sedan (21 inch Wheels) needs for its full 285-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 (21 inch Wheels) in New Hampshire ranks 18,595 for cost savings versus gas — 1 being the best deal nationally. Separately, the BMW i7 M70 xDrive Sedan (21 inch Wheels) ranks 310 of 400 EV models for raw efficiency, and New Hampshire ranks 43 of 51 for cheapest residential electricity.

Getting set up to charge a 2026 BMW i7 M70 xDrive Sedan (21 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.

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

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Curious how New Hampshire's 26.83¢/kWh compares? The guide to charging cost by state ranks every state side by side.