2026 BMW i4 eDrive40 Gran Coupe (18 inch wheels): home charging cost in Tennessee

A 2026 BMW i4 eDrive40 Gran Coupe (18 inch wheels) draws 28.5 kWh per 100 miles per the EPA; at Tennessee's 13.9¢/kWh residential rate that's $3.97 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: 75.2% less than gas per mile, here specifically.

Annual cost, at 15 thousands miles a year

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 BMW i4 eDrive40 Gran Coupe (18 inch wheels) charged at home in Tennessee costs about $595/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,808 a year.

Filling up the 2026 BMW i4 eDrive40 Gran Coupe (18 inch wheels), in dollars

A 2026 BMW i4 eDrive40 Gran Coupe (18 inch wheels) needs roughly 95 kWh to reach its EPA-rated 333-mile range, which runs about $13.2 at 13.9¢/kWh in Tennessee.

Where this ranks

This combination ranks 880 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW i4 eDrive40 Gran Coupe (18 inch wheels) alone ranks 31 of 400 models for efficiency; Tennessee alone ranks 13 of 51 states for electricity price.

Before you install a home charger in Tennessee

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 Tennessee 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 Tennessee's 13.9¢/kWh compares? The guide to charging cost by state ranks every state side by side.