Montana home charging cost for the 2026 Porsche Macan 4 Electric

At Montana's residential electricity rate of 13.77¢/kWh, a 2026 Porsche Macan 4 Electric (rated 35.3 kWh per 100 miles by the EPA) costs $4.86 to drive 100 miles on home charging, against $16.02 for the same distance in a car averaging 25.5 mpg on gasoline at $4.085/gallon. Charging at home costs a fraction of what gas would here: 69.6% less than gas per mile, here specifically.

What a year of driving costs

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Porsche Macan 4 Electric costs roughly $729 a year to charge at home in Montana, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,674 a year.

Cost of a full charge

Covering the 2026 Porsche Macan 4 Electric's EPA-rated 304-mile range takes about 107.3 kWh, which costs about $14.78 at Montana's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

Where this ranks

This combination ranks 3,914 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Porsche Macan 4 Electric alone ranks 156 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.

Ask a licensed Montana electrician to quote the install before this math becomes a real decision.

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2026 Porsche Macan 4 Electric's cost in Montana. Montana's 13.77¢/kWh rate ranks 10 of 51 states; the state rate guide lays out the full spread.