South Dakota home charging cost for the 2027 BMW i7 xDrive60 Sedan (20 inch Summer Tires)

In South Dakota, home electricity runs 14.33¢/kWh — put a 2027 BMW i7 xDrive60 Sedan (20 inch Summer Tires)'s EPA-rated 36.5 kWh/100mi against that and 100 miles costs $5.23, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home costs a fraction of what gas would here: 67.3% less than gas per mile, here specifically.

What a year of driving costs

At fueleconomy.gov's default of 15,000 annual miles, the 2027 BMW i7 xDrive60 Sedan (20 inch Summer Tires) costs roughly $785 a year to charge at home in South Dakota, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,618 a year.

What one full charge costs

Covering the 2027 BMW i7 xDrive60 Sedan (20 inch Summer Tires)'s EPA-rated 362-mile range takes about 132.2 kWh, which costs about $18.94 at South Dakota'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 5,677 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW i7 xDrive60 Sedan (20 inch Summer Tires) alone ranks 177 of 400 models for efficiency; South Dakota alone ranks 14 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 South Dakota electrician quotes for Level 2 install before you commit either way.

Where these figures come from

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Curious how South Dakota's 14.33¢/kWh compares? The guide to charging cost by state ranks every state side by side.