What it costs to charge a 2026 Cadillac OPTIQ RWD (11 kW Charger) in Illinois

A 2026 Cadillac OPTIQ RWD (11 kW Charger) draws 32.1 kWh per 100 miles per the EPA; at Illinois's 19.22¢/kWh residential rate that's $6.17 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 61.5% cheaper per mile than gasoline in Illinois — charging at home is much cheaper than gas here.

2026 Cadillac OPTIQ RWD (11 kW Charger): yearly cost in Illinois

Home charging this 2026 Cadillac OPTIQ RWD (11 kW Charger) in Illinois runs about $925 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,478 saved annually, at this mileage.

Filling up the 2026 Cadillac OPTIQ RWD (11 kW Charger), in dollars

$19.55 — that's what Illinois's 19.22¢/kWh rate puts on the 101.7 kWh a 2026 Cadillac OPTIQ RWD (11 kW Charger) needs for its full 317-mile EPA range.

2026 Cadillac OPTIQ RWD (11 kW Charger) in Illinois, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Cadillac OPTIQ RWD (11 kW Charger) in Illinois ranks 10,180 for cost savings versus gas — 1 being the best deal nationally. Separately, the Cadillac OPTIQ RWD (11 kW Charger) ranks 90 of 400 EV models for raw efficiency, and Illinois ranks 36 of 51 for cheapest residential electricity.

Before you install a home charger in Illinois

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 Illinois 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 2026 Cadillac OPTIQ RWD (11 kW Charger)'s cost in Illinois. Illinois's 19.22¢/kWh rate ranks 36 of 51 states; the state rate guide lays out the full spread.