Charging a 2026 Porsche Taycan 4 Performance Battery at home in Tennessee

In Tennessee, home electricity runs 13.9¢/kWh — put a 2026 Porsche Taycan 4 Performance Battery's EPA-rated 38.6 kWh/100mi against that and 100 miles costs $5.36, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 66.5% 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 Taycan 4 Performance Battery spend about $804 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,599 saved annually, at this mileage.

Filling up the 2026 Porsche Taycan 4 Performance Battery, in dollars

At Tennessee's rate, fully covering this 2026 Porsche Taycan 4 Performance Battery's 251-mile EPA range costs about $13.46 (96.8 kWh) — the energy the EPA test actually used, not the battery's rated size.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Porsche Taycan 4 Performance Battery in Tennessee ranks 6,349 for cost savings versus gas — 1 being the best deal nationally. Separately, the Porsche Taycan 4 Performance Battery ranks 229 of 400 EV models for raw efficiency, and Tennessee ranks 13 of 51 for cheapest residential electricity.

Next step: home charger installation

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.

Ask a licensed Tennessee electrician to quote the install before this math becomes a real decision.

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Tennessee's 13.9¢/kWh rate ranks 13 of 51 states; the state rate guide lays out the full spread.