Charging a 2027 Cadillac OPTIQ RWD 19kW Charger at home in Rhode Island

In Rhode Island, home electricity runs 29.45¢/kWh — put a 2027 Cadillac OPTIQ RWD 19kW Charger's EPA-rated 32.1 kWh/100mi against that and 100 miles costs $9.45, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 41% cheaper per mile than gasoline in Rhode Island — charging at home is much cheaper than gas here.

Annual cost, at 15 thousands miles a year

Rhode Island owners putting 15,000 annual miles on a 2027 Cadillac OPTIQ RWD 19kW Charger spend about $1,417 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $986 saved annually, at this mileage.

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

At Rhode Island's rate, fully covering this 2027 Cadillac OPTIQ RWD 19kW Charger's 317-mile EPA range costs about $29.95 (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 2027 Cadillac OPTIQ RWD 19kW Charger in Rhode Island ranks 16,912 for cost savings versus gas — 1 being the best deal nationally. Separately, the Cadillac OPTIQ RWD 19kW Charger ranks 89 of 400 EV models for raw efficiency, and Rhode Island ranks 47 of 51 for cheapest residential electricity.

Getting set up to charge a 2027 Cadillac OPTIQ RWD 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.

Line up a few Rhode Island 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. Rhode Island 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.