What it costs to charge a 2026 Cadillac OPTIQ RWD (19 kW Charger) in Hawaii

A 2026 Cadillac OPTIQ RWD (19 kW Charger) draws 32.1 kWh per 100 miles per the EPA; at Hawaii's 45.95¢/kWh residential rate that's $14.74 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 8% cheaper per mile than gasoline in Hawaii — charging at home costs a little less than gas here.

2026 Cadillac OPTIQ RWD (19 kW Charger): yearly cost in Hawaii

Home charging this 2026 Cadillac OPTIQ RWD (19 kW Charger) in Hawaii runs about $2,211 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $192 saved annually, at this mileage.

Cost of a full charge

$46.73 — that's what Hawaii's 45.95¢/kWh rate puts on the 101.7 kWh a 2026 Cadillac OPTIQ RWD (19 kW Charger) needs for its full 317-mile EPA range.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Cadillac OPTIQ RWD (19 kW Charger) in Hawaii ranks 19,973 for cost savings versus gas — 1 being the best deal nationally. Separately, the Cadillac OPTIQ RWD (19 kW Charger) ranks 91 of 400 EV models for raw efficiency, and Hawaii ranks 51 of 51 for cheapest residential electricity.

Getting set up to charge a 2026 Cadillac OPTIQ RWD (19 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.

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

More on how this number was built

See the methodology guide for exactly which EIA and EPA figures feed 2026 Cadillac OPTIQ RWD (19 kW Charger)'s cost in Hawaii. Hawaii has some of the highest residential electricity rates in the country — see the guide to why the cost varies so much by state for the full picture.