Idaho home charging cost for the 2027 BMW i5 eDrive40 Sedan (21 inch Wheels)

At Idaho's residential electricity rate of 12.8¢/kWh, a 2027 BMW i5 eDrive40 Sedan (21 inch Wheels) (rated 33.9 kWh per 100 miles by the EPA) costs $4.33 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: 72.9% less than gas per mile, here specifically.

Annual cost, at 15 thousands miles a year

At fueleconomy.gov's default of 15,000 annual miles, the 2027 BMW i5 eDrive40 Sedan (21 inch Wheels) costs roughly $650 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 $1,753 a year.

What one full charge costs

Covering the 2027 BMW i5 eDrive40 Sedan (21 inch Wheels)'s EPA-rated 280-mile range takes about 94.8 kWh, which costs about $12.14 at Idaho'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 1,868 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW i5 eDrive40 Sedan (21 inch Wheels) alone ranks 120 of 400 models for efficiency; Idaho alone ranks 3 of 51 states for electricity price.

Getting set up to charge a 2027 BMW i5 eDrive40 Sedan (21 inch Wheels) at home

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.