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

A 2026 Porsche Taycan 4S Perf Battery Plus draws 38.5 kWh per 100 miles per the EPA; at Tennessee's 13.9¢/kWh residential rate that's $5.36 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home costs a fraction of what gas would here: 66.6% 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 Taycan 4S Perf Battery Plus charged at home in Tennessee costs about $804/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,599 a year.

What one full charge costs

A 2026 Porsche Taycan 4S Perf Battery Plus needs roughly 113.7 kWh to reach its EPA-rated 295-mile range, which runs about $15.8 at 13.9¢/kWh in Tennessee.

Where this ranks

This combination ranks 6,244 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Porsche Taycan 4S Perf Battery Plus alone ranks 228 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

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Curious how Tennessee's 13.9¢/kWh compares? The guide to charging cost by state ranks every state side by side.