2027 Cadillac OPTIQ AWD (19kW)

Charging a 2027 Cadillac OPTIQ AWD 19kW Charger at home in Hawaii

At Hawaii's residential electricity rate of 45.95¢/kWh, a 2027 Cadillac OPTIQ AWD 19kW Charger (rated 34 kWh per 100 miles by the EPA) costs $15.63 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. That works out to 2.4% cheaper per mile than gasoline in Hawaii — charging at home costs a little less than gas here.

What a year of driving costs

Hawaii owners putting 15,000 annual miles on a 2027 Cadillac OPTIQ AWD 19kW Charger spend about $2,345 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $58 saved annually, at this mileage.

Filling up the 2027 Cadillac OPTIQ AWD 19kW Charger, in dollars

At Hawaii's rate, fully covering this 2027 Cadillac OPTIQ AWD 19kW Charger's 303-mile EPA range costs about $47.37 (103.1 kWh) — the energy the EPA test actually used, not the battery's rated size.

2027 Cadillac OPTIQ AWD 19kW Charger in Hawaii, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Cadillac OPTIQ AWD 19kW Charger in Hawaii ranks 20,064 for cost savings versus gas — 1 being the best deal nationally. Separately, the Cadillac OPTIQ AWD 19kW Charger ranks 124 of 400 EV models for raw efficiency, and Hawaii ranks 51 of 51 for cheapest residential electricity.

Getting set up to charge a 2027 Cadillac OPTIQ AWD 19kW 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.

Ask a licensed Hawaii electrician to quote the install before this math becomes a real decision.

More on how this number was built

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. 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.