Charging a 2026 Porsche Macan 4 Electric 20in Wheels at home in Tennessee

A 2026 Porsche Macan 4 Electric 20in Wheels draws 33.1 kWh per 100 miles per the EPA; at Tennessee's 13.9¢/kWh residential rate that's $4.59 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 71.3% cheaper per mile than gasoline in Tennessee — charging at home costs a fraction of what gas would here.

Annual cost, at 15 thousands miles a year

Tennessee owners putting 15,000 annual miles on a 2026 Porsche Macan 4 Electric 20in Wheels spend about $689 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,714 saved annually, at this mileage.

Cost of a full charge

At Tennessee's rate, fully covering this 2026 Porsche Macan 4 Electric 20in Wheels's 324-mile EPA range costs about $14.88 (107.1 kWh) — the energy the EPA test actually used, not the battery's rated size.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Porsche Macan 4 Electric 20in Wheels in Tennessee ranks 2,799 for cost savings versus gas — 1 being the best deal nationally. Separately, the Porsche Macan 4 Electric 20in Wheels ranks 111 of 400 EV models for raw efficiency, and Tennessee ranks 13 of 51 for cheapest residential electricity.

Before you install a home charger in Tennessee

Everything above is the per-mile and per-year cost once a home charger exists — getting one installed is a separate electrical job whose price depends on your panel and wiring, not the state average used here.

Get quotes from local electricians for Level 2 charger installation in Tennessee before deciding.

More on how this number was built

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.