Tennessee home charging cost for the 2026 Porsche Macan Electric 20in Wheels

At Tennessee's residential electricity rate of 13.9¢/kWh, a 2026 Porsche Macan Electric 20in Wheels (rated 32.1 kWh per 100 miles by the EPA) costs $4.46 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: 72.1% less than gas per mile, here specifically.

Annual cost, at 15 thousands miles a year

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Porsche Macan Electric 20in Wheels costs roughly $669 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 $1,734 a year.

Cost of a full charge

Covering the 2026 Porsche Macan Electric 20in Wheels's EPA-rated 332-mile range takes about 106.6 kWh, which costs about $14.81 at Tennessee's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

Where this ranks

This combination ranks 2,352 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Porsche Macan Electric 20in Wheels alone ranks 92 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

See the methodology guide for exactly which EIA and EPA figures feed 2026 Porsche Macan Electric 20in Wheels's cost in Tennessee. Tennessee's 13.9¢/kWh rate ranks 13 of 51 states; the state rate guide lays out the full spread.