2027 BMW i7 xDrive50 Sedan (21 inch All-Season Tires): home charging cost in Iowa
At Iowa's residential electricity rate of 13.77¢/kWh, a 2027 BMW i7 xDrive50 Sedan (21 inch All-Season Tires) (rated 37.4 kWh per 100 miles by the EPA) costs $5.16 to drive 100 miles on home charging, against $16.02 for the same distance in a car averaging 25.5 mpg on gasoline at $4.085/gallon. Charging at home costs a fraction of what gas would here: 67.8% less than gas per mile, here specifically.
Annual cost, at 15 thousands miles a year
Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2027 BMW i7 xDrive50 Sedan (21 inch All-Season Tires) charged at home in Iowa costs about $773/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,630 a year.
What one full charge costs
A 2027 BMW i7 xDrive50 Sedan (21 inch All-Season Tires) needs roughly 132.5 kWh to reach its EPA-rated 354-mile range, which runs about $18.25 at 13.77¢/kWh in Iowa.
2027 BMW i7 xDrive50 Sedan (21 inch All-Season Tires) in Iowa, ranked
This combination ranks 5,240 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW i7 xDrive50 Sedan (21 inch All-Season Tires) alone ranks 205 of 400 models for efficiency; Iowa alone ranks 9 of 51 states for electricity price.
Before you install a home charger in Iowa
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 Iowa 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. At 13.77¢/kWh, Iowa sits in the middle of the national range — the guide to why charging cost varies by state shows where.