Charging a 2027 Cadillac OPTIQ AWD 11kW Charger at home in Hawaii

In Hawaii, home electricity runs 45.95¢/kWh — put a 2027 Cadillac OPTIQ AWD 11kW Charger's EPA-rated 34 kWh/100mi against that and 100 miles costs $15.63, versus $16.02 for a gas car averaging 25.5 mpg. 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 11kW 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 11kW Charger, in dollars

At Hawaii's rate, fully covering this 2027 Cadillac OPTIQ AWD 11kW 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.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Cadillac OPTIQ AWD 11kW Charger in Hawaii ranks 20,063 for cost savings versus gas — 1 being the best deal nationally. Separately, the Cadillac OPTIQ AWD 11kW Charger ranks 123 of 400 EV models for raw efficiency, and Hawaii ranks 51 of 51 for cheapest residential electricity.

Next step: home charger installation

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

See the methodology guide for exactly which EIA and EPA figures feed 2027 Cadillac OPTIQ AWD 11kW 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.