What it costs to charge a 2026 Cadillac OPTIQ RWD (19 kW Charger) in South Carolina

At South Carolina's residential electricity rate of 16.04¢/kWh, a 2026 Cadillac OPTIQ RWD (19 kW Charger) (rated 32.1 kWh per 100 miles by the EPA) costs $5.15 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 67.9% cheaper per mile than gasoline in South Carolina — charging at home costs a fraction of what gas would here.

2026 Cadillac OPTIQ RWD (19 kW Charger): yearly cost in South Carolina

Home charging this 2026 Cadillac OPTIQ RWD (19 kW Charger) in South Carolina runs about $772 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,631 saved annually, at this mileage.

Cost of a full charge

$16.31 — that's what South Carolina's 16.04¢/kWh rate puts on the 101.7 kWh a 2026 Cadillac OPTIQ RWD (19 kW Charger) needs for its full 317-mile EPA range.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Cadillac OPTIQ RWD (19 kW Charger) in South Carolina ranks 5,211 for cost savings versus gas — 1 being the best deal nationally. Separately, the Cadillac OPTIQ RWD (19 kW Charger) ranks 91 of 400 EV models for raw efficiency, and South Carolina ranks 27 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 South Carolina electrician to quote the install before this math becomes a real decision.

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. South Carolina's 16.04¢/kWh rate ranks 27 of 51 states; the state rate guide lays out the full spread.