2026 Porsche Macan Electric 20in Wheels: home charging cost in Montana

A 2026 Porsche Macan Electric 20in Wheels draws 32.1 kWh per 100 miles per the EPA; at Montana's 13.77¢/kWh residential rate that's $4.42 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: 72.4% 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 Macan Electric 20in Wheels charged at home in Montana costs about $663/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,740 a year.

Filling up the 2026 Porsche Macan Electric 20in Wheels, in dollars

A 2026 Porsche Macan Electric 20in Wheels needs roughly 106.6 kWh to reach its EPA-rated 332-mile range, which runs about $14.68 at 13.77¢/kWh in Montana.

Where this ranks

This combination ranks 2,135 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Porsche Macan Electric 20in Wheels alone ranks 92 of 400 models for efficiency; Montana alone ranks 10 of 51 states for electricity price.

Before you install a home charger in Montana

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 Montana before deciding.

Where these figures come from

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.