2026 BMW iX xDrive45 (21 inch Wheels): home charging cost in Tennessee
At Tennessee's residential electricity rate of 13.9¢/kWh, a 2026 BMW iX xDrive45 (21 inch Wheels) (rated 37.7 kWh per 100 miles by the EPA) costs $5.24 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: 67.3% less than gas per mile, here specifically.
2026 BMW iX xDrive45 (21 inch Wheels): yearly cost in Tennessee
Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 BMW iX xDrive45 (21 inch Wheels) charged at home in Tennessee costs about $786/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,617 a year.
Filling up the 2026 BMW iX xDrive45 (21 inch Wheels), in dollars
A 2026 BMW iX xDrive45 (21 inch Wheels) needs roughly 112 kWh to reach its EPA-rated 297-mile range, which runs about $15.57 at 13.9¢/kWh in Tennessee.
Where this ranks
This combination ranks 5,680 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW iX xDrive45 (21 inch Wheels) alone ranks 211 of 400 models for efficiency; Tennessee alone ranks 13 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.
Get quotes from local electricians for Level 2 charger installation in Tennessee before deciding.
Where these figures come from
The methodology guide names the exact EIA and EPA tables behind this page's numbers. Curious how Tennessee's 13.9¢/kWh compares? The guide to charging cost by state ranks every state side by side.