South Dakota home charging cost for the 2027 BMW i5 eDrive40 Sedan (20 inch Wheels)

At South Dakota's residential electricity rate of 14.33¢/kWh, a 2027 BMW i5 eDrive40 Sedan (20 inch Wheels) (rated 31.9 kWh per 100 miles by the EPA) costs $4.57 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: 71.5% 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 i5 eDrive40 Sedan (20 inch Wheels) costs roughly $685 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 $1,718 a year.

Filling up the 2027 BMW i5 eDrive40 Sedan (20 inch Wheels), in dollars

Covering the 2027 BMW i5 eDrive40 Sedan (20 inch Wheels)'s EPA-rated 299-mile range takes about 95.3 kWh, which costs about $13.66 at South Dakota's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

2027 BMW i5 eDrive40 Sedan (20 inch Wheels) in South Dakota, ranked

This combination ranks 2,685 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW i5 eDrive40 Sedan (20 inch Wheels) alone ranks 84 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.

Ask a licensed South Dakota electrician to quote the install before this math becomes a real decision.

Where these figures come from

The methodology guide names the exact EIA and EPA tables behind this page's numbers. At 14.33¢/kWh, South Dakota sits in the middle of the national range — the guide to why charging cost varies by state shows where.