Idaho home charging cost for the 2027 BMW iX3 50 xDrive (21 inch Summer Tires)

A 2027 BMW iX3 50 xDrive (21 inch Summer Tires) draws 32 kWh per 100 miles per the EPA; at Idaho's 12.8¢/kWh residential rate that's $4.09 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: 74.4% less than gas per mile, here specifically.

What a year of driving costs

At fueleconomy.gov's default of 15,000 annual miles, the 2027 BMW iX3 50 xDrive (21 inch Summer Tires) costs roughly $614 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 $1,789 a year.

Cost of a full charge

Covering the 2027 BMW iX3 50 xDrive (21 inch Summer Tires)'s EPA-rated 398-mile range takes about 127.3 kWh, which costs about $16.29 at Idaho's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

How this compares nationally

This combination ranks 1,176 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW iX3 50 xDrive (21 inch Summer Tires) alone ranks 87 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

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. 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.