2026 Porsche Taycan 4S Performance Battery: home charging cost in Tennessee

In Tennessee, home electricity runs 13.9¢/kWh — put a 2026 Porsche Taycan 4S Performance Battery's EPA-rated 38.4 kWh/100mi against that and 100 miles costs $5.34, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home costs a fraction of what gas would here: 66.6% less than gas per mile, here specifically.

What a year of driving costs

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Porsche Taycan 4S Performance Battery charged at home in Tennessee costs about $802/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,601 a year.

Cost of a full charge

A 2026 Porsche Taycan 4S Performance Battery needs roughly 96.9 kWh to reach its EPA-rated 252-mile range, which runs about $13.47 at 13.9¢/kWh in Tennessee.

How this compares nationally

This combination ranks 6,245 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Porsche Taycan 4S Performance Battery alone ranks 225 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.

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

Where these figures come from

The methodology guide names the exact EIA and EPA tables behind this page's numbers. At 13.9¢/kWh, Tennessee sits in the middle of the national range — the guide to why charging cost varies by state shows where.