2026 BMW i4 eDrive40 Gran Coupe (19"), ID Charging Cost

2026 BMW i4 eDrive40 Gran Coupe (19 inch Wheels): home charging cost in Idaho

A 2026 BMW i4 eDrive40 Gran Coupe (19 inch Wheels) draws 31.1 kWh per 100 miles per the EPA; at Idaho's 12.8¢/kWh residential rate that's $3.98 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: 75.2% less than gas per mile, here specifically.

Annual cost, at 15 thousands miles a year

Driving 15,000 miles a year, fueleconomy.gov's own default assumption, a 2026 BMW i4 eDrive40 Gran Coupe (19 inch Wheels) charged at home in Idaho costs about $597/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,806 a year.

Filling up the 2026 BMW i4 eDrive40 Gran Coupe (19 inch Wheels), in dollars

A 2026 BMW i4 eDrive40 Gran Coupe (19 inch Wheels) needs roughly 95.5 kWh to reach its EPA-rated 307-mile range, which runs about $12.22 at 12.8¢/kWh in Idaho.

How this compares nationally

This combination ranks 865 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW i4 eDrive40 Gran Coupe (19 inch Wheels) alone ranks 77 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.

Get quotes from local electricians for Level 2 charger installation in Idaho before deciding.

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.