What it costs to charge a 2026 Porsche Taycan 4 Performance Battery in Montana

A 2026 Porsche Taycan 4 Performance Battery draws 38.6 kWh per 100 miles per the EPA; at Montana's 13.77¢/kWh residential rate that's $5.31 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 66.8% cheaper per mile than gasoline in Montana — charging at home costs a fraction of what gas would here.

2026 Porsche Taycan 4 Performance Battery: yearly cost in Montana

Home charging this 2026 Porsche Taycan 4 Performance Battery in Montana runs about $797 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,606 saved annually, at this mileage.

Cost of a full charge

$13.33 — that's what Montana's 13.77¢/kWh rate puts on the 96.8 kWh a 2026 Porsche Taycan 4 Performance Battery needs for its full 251-mile EPA range.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Porsche Taycan 4 Performance Battery in Montana ranks 6,073 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 Montana ranks 10 of 51 for cheapest residential electricity.

Before you install a home charger in Montana

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 Montana 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. Curious how Montana's 13.77¢/kWh compares? The guide to charging cost by state ranks every state side by side.