2026 Volvo EC40 Twin: home charging cost in Montana

At Montana's residential electricity rate of 13.77¢/kWh, a 2026 Volvo EC40 Twin (rated 34.8 kWh per 100 miles by the EPA) costs $4.8 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: 70.1% less than gas per mile, here specifically.

2026 Volvo EC40 Twin: yearly cost in Montana

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Volvo EC40 Twin charged at home in Montana costs about $720/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,683 a year.

What one full charge costs

A 2026 Volvo EC40 Twin needs roughly 93.4 kWh to reach its EPA-rated 268-mile range, which runs about $12.86 at 13.77¢/kWh in Montana.

How this compares nationally

This combination ranks 3,573 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Volvo EC40 Twin alone ranks 144 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

See the methodology guide for exactly which EIA and EPA figures feed 2026 Volvo EC40 Twin's cost in Montana. Montana's 13.77¢/kWh rate ranks 10 of 51 states; the state rate guide lays out the full spread.