Rhode Island home charging cost for the 2027 Cadillac OPTIQ AWD 19kW Charger

At Rhode Island's residential electricity rate of 29.45¢/kWh, a 2027 Cadillac OPTIQ AWD 19kW Charger (rated 34 kWh per 100 miles by the EPA) costs $10.02 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. Charging at home is cheaper than gas here: 37.5% less than gas per mile, here specifically.

What a year of driving costs

At fueleconomy.gov's default of 15,000 annual miles, the 2027 Cadillac OPTIQ AWD 19kW Charger costs roughly $1,503 a year to charge at home in Rhode Island, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $900 a year.

Cost of a full charge

Covering the 2027 Cadillac OPTIQ AWD 19kW Charger's EPA-rated 303-mile range takes about 103.1 kWh, which costs about $30.36 at Rhode Island's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

2027 Cadillac OPTIQ AWD 19kW Charger in Rhode Island, ranked

This combination ranks 17,433 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Cadillac OPTIQ AWD 19kW Charger alone ranks 124 of 400 models for efficiency; Rhode Island alone ranks 47 of 51 states for electricity price.

Getting set up to charge a 2027 Cadillac OPTIQ AWD 19kW Charger at home

The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.

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

Where these figures come from

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.