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

In Montana, home electricity runs 13.77¢/kWh — put a 2026 Porsche Taycan 4 Perf Battery Plus's EPA-rated 38.7 kWh/100mi against that and 100 miles costs $5.33, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 66.7% cheaper per mile than gasoline in Montana — charging at home costs a fraction of what gas would here.

Annual cost, at 15 thousands miles a year

Home charging this 2026 Porsche Taycan 4 Perf Battery Plus in Montana runs about $800 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,603 saved annually, at this mileage.

What one full charge costs

$15.68 — that's what Montana's 13.77¢/kWh rate puts on the 113.9 kWh a 2026 Porsche Taycan 4 Perf Battery Plus needs for its full 294-mile EPA range.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Porsche Taycan 4 Perf Battery Plus in Montana ranks 6,145 for cost savings versus gas — 1 being the best deal nationally. Separately, the Porsche Taycan 4 Perf Battery Plus ranks 231 of 400 EV models for raw efficiency, and Montana ranks 10 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.

Line up a few Montana electrician quotes for Level 2 install before you commit either way.

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. At 13.77¢/kWh, Montana sits in the middle of the national range — the guide to why charging cost varies by state shows where.