Charging a 2026 Cadillac OPTIQ RWD (11 kW Charger) at home in Idaho

A 2026 Cadillac OPTIQ RWD (11 kW Charger) draws 32.1 kWh per 100 miles per the EPA; at Idaho's 12.8¢/kWh residential rate that's $4.11 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 74.4% cheaper per mile than gasoline in Idaho — charging at home costs a fraction of what gas would here.

Annual cost, at 15 thousands miles a year

Idaho owners putting 15,000 annual miles on a 2026 Cadillac OPTIQ RWD (11 kW Charger) spend about $616 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,787 saved annually, at this mileage.

What one full charge costs

At Idaho's rate, fully covering this 2026 Cadillac OPTIQ RWD (11 kW Charger)'s 317-mile EPA range costs about $13.02 (101.7 kWh) — the energy the EPA test actually used, not the battery's rated size.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Cadillac OPTIQ RWD (11 kW Charger) in Idaho ranks 1,179 for cost savings versus gas — 1 being the best deal nationally. Separately, the Cadillac OPTIQ RWD (11 kW Charger) ranks 90 of 400 EV models for raw efficiency, and Idaho ranks 3 of 51 for cheapest residential electricity.

Getting set up to charge a 2026 Cadillac OPTIQ RWD (11 kW Charger) at home

Everything above is the per-mile and per-year cost once a home charger exists — getting one installed is a separate electrical job whose price depends on your panel and wiring, not the state average used here.

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

More on how this number was built

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.