2027 BMW i5 xDrive40 Sedan (20 inch Wheels): home charging cost in Delaware
At Delaware's residential electricity rate of 17.74¢/kWh, a 2027 BMW i5 xDrive40 Sedan (20 inch Wheels) (rated 35 kWh per 100 miles by the EPA) costs $6.21 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 is much cheaper than gas here: 61.2% 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 2027 BMW i5 xDrive40 Sedan (20 inch Wheels) charged at home in Delaware costs about $932/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,471 a year.
What one full charge costs
A 2027 BMW i5 xDrive40 Sedan (20 inch Wheels) needs roughly 95.6 kWh to reach its EPA-rated 273-mile range, which runs about $16.96 at 17.74¢/kWh in Delaware.
How this compares nationally
This combination ranks 10,380 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW i5 xDrive40 Sedan (20 inch Wheels) alone ranks 149 of 400 models for efficiency; Delaware alone ranks 33 of 51 states for electricity price.
Getting set up to charge a 2027 BMW i5 xDrive40 Sedan (20 inch Wheels) at home
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 Delaware 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. Curious how Delaware's 17.74¢/kWh compares? The guide to charging cost by state ranks every state side by side.