2026 Porsche Macan 4 Electric: home charging cost in Tennessee

At Tennessee's residential electricity rate of 13.9¢/kWh, a 2026 Porsche Macan 4 Electric (rated 35.3 kWh per 100 miles by the EPA) costs $4.91 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: 69.4% 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 Porsche Macan 4 Electric charged at home in Tennessee costs about $736/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,667 a year.

What one full charge costs

A 2026 Porsche Macan 4 Electric needs roughly 107.3 kWh to reach its EPA-rated 304-mile range, which runs about $14.92 at 13.9¢/kWh in Tennessee.

2026 Porsche Macan 4 Electric in Tennessee, ranked

This combination ranks 4,095 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Porsche Macan 4 Electric alone ranks 156 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.

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.