2026 BMW i4 xDrive40 Gran Coupe (19 inch Wheels): home charging cost in South Dakota

A 2026 BMW i4 xDrive40 Gran Coupe (19 inch Wheels) draws 36 kWh per 100 miles per the EPA; at South Dakota's 14.33¢/kWh residential rate that's $5.16 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home costs a fraction of what gas would here: 67.8% less than gas per mile, here specifically.

What a year of driving costs

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 BMW i4 xDrive40 Gran Coupe (19 inch Wheels) charged at home in South Dakota costs about $774/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,629 a year.

Cost of a full charge

A 2026 BMW i4 xDrive40 Gran Coupe (19 inch Wheels) needs roughly 96.4 kWh to reach its EPA-rated 268-mile range, which runs about $13.82 at 14.33¢/kWh in South Dakota.

Where this ranks

This combination ranks 5,276 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW i4 xDrive40 Gran Coupe (19 inch Wheels) alone ranks 167 of 400 models for efficiency; South Dakota alone ranks 14 of 51 states for electricity price.

Before you install a home charger in South Dakota

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.

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

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.