Tennessee home charging cost for the 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires)

At Tennessee's residential electricity rate of 13.9¢/kWh, a 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) (rated 36.8 kWh per 100 miles by the EPA) costs $5.11 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: 68.1% less than gas per mile, here specifically.

2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires): yearly cost in Tennessee

At fueleconomy.gov's default of 15,000 annual miles, the 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) costs roughly $766 a year to charge at home in Tennessee, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,636 a year.

Cost of a full charge

Covering the 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires)'s EPA-rated 364-mile range takes about 133.8 kWh, which costs about $18.6 at Tennessee's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

How this compares nationally

This combination ranks 5,062 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW i7 xDrive50 Sedan (21 inch Summer Tires) alone ranks 184 of 400 models for efficiency; Tennessee alone ranks 13 of 51 states for electricity price.

Getting set up to charge a 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) 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 Tennessee electrician to quote the install before this math becomes a real decision.

Where these figures come from

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. At 13.9¢/kWh, Tennessee sits in the middle of the national range — the guide to why charging cost varies by state shows where.