Idaho home charging cost for the 2026 Volvo EX40 Twin

A 2026 Volvo EX40 Twin draws 36 kWh per 100 miles per the EPA; at Idaho's 12.8¢/kWh residential rate that's $4.6 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: 71.3% 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 Volvo EX40 Twin costs roughly $691 a year to charge at home in Idaho, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,712 a year.

What one full charge costs

Covering the 2026 Volvo EX40 Twin's EPA-rated 260-mile range takes about 93.5 kWh, which costs about $11.97 at Idaho's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

2026 Volvo EX40 Twin in Idaho, ranked

This combination ranks 2,749 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Volvo EX40 Twin alone ranks 166 of 400 models for efficiency; Idaho alone ranks 3 of 51 states for electricity price.

Before you install a home charger in Idaho

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.

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

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2026 Volvo EX40 Twin's cost in Idaho. Idaho is one of the cheapest states for home electricity — the guide to why the cost varies so much by state covers what drives that.