2026 Cadillac OPTIQ AWD (19 kW Charger): home charging cost in Idaho

In Idaho, home electricity runs 12.8¢/kWh — put a 2026 Cadillac OPTIQ AWD (19 kW Charger)'s EPA-rated 34 kWh/100mi against that and 100 miles costs $4.36, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home costs a fraction of what gas would here: 72.8% less than gas per mile, here specifically.

What a year of driving costs

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Cadillac OPTIQ AWD (19 kW Charger) charged at home in Idaho costs about $653/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,750 a year.

Cost of a full charge

A 2026 Cadillac OPTIQ AWD (19 kW Charger) needs roughly 103.1 kWh to reach its EPA-rated 303-mile range, which runs about $13.2 at 12.8¢/kWh in Idaho.

Where this ranks

This combination ranks 1,917 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Cadillac OPTIQ AWD (19 kW Charger) alone ranks 126 of 400 models for efficiency; Idaho alone ranks 3 of 51 states for electricity price.

Next step: home charger installation

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.