Charging a 2027 Cadillac OPTIQ RWD 19kW Charger at home in South Dakota

A 2027 Cadillac OPTIQ RWD 19kW Charger draws 32.1 kWh per 100 miles per the EPA; at South Dakota's 14.33¢/kWh residential rate that's $4.6 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 71.3% cheaper per mile than gasoline in South Dakota — charging at home costs a fraction of what gas would here.

Annual cost, at 15 thousands miles a year

South Dakota owners putting 15,000 annual miles on a 2027 Cadillac OPTIQ RWD 19kW Charger spend about $690 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,713 saved annually, at this mileage.

What one full charge costs

At South Dakota's rate, fully covering this 2027 Cadillac OPTIQ RWD 19kW Charger's 317-mile EPA range costs about $14.57 (101.7 kWh) — the energy the EPA test actually used, not the battery's rated size.

2027 Cadillac OPTIQ RWD 19kW Charger in South Dakota, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Cadillac OPTIQ RWD 19kW Charger in South Dakota ranks 2,793 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 South Dakota ranks 14 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.

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

More on how this number was built

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Curious how South Dakota's 14.33¢/kWh compares? The guide to charging cost by state ranks every state side by side.