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

In Iowa, home electricity runs 13.77¢/kWh — put a 2026 BMW i7 M70 xDrive Sedan (21 inch Wheels)'s EPA-rated 42.5 kWh/100mi against that and 100 miles costs $5.85, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 63.5% cheaper per mile than gasoline in Iowa — charging at home is much cheaper than gas here.

What a year of driving costs

Home charging this 2026 BMW i7 M70 xDrive Sedan (21 inch Wheels) in Iowa runs about $877 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,526 saved annually, at this mileage.

Cost of a full charge

$16.66 — that's what Iowa's 13.77¢/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 Iowa ranks 8,677 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 Iowa ranks 9 of 51 for cheapest residential electricity.

Next step: home charger installation

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.

Get quotes from local electricians for Level 2 charger installation in Iowa before deciding.

More on how this number was built

See the methodology guide for exactly which EIA and EPA figures feed 2026 BMW i7 M70 xDrive Sedan (21 inch Wheels)'s cost in Iowa. Curious how Iowa's 13.77¢/kWh compares? The guide to charging cost by state ranks every state side by side.