Charging a 2026 Cadillac CELESTIQ at home in Illinois

At Illinois's residential electricity rate of 19.22¢/kWh, a 2026 Cadillac CELESTIQ (rated 41.7 kWh per 100 miles by the EPA) costs $8.01 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 50% cheaper per mile than gasoline in Illinois — charging at home is much cheaper than gas here.

2026 Cadillac CELESTIQ: yearly cost in Illinois

Illinois owners putting 15,000 annual miles on a 2026 Cadillac CELESTIQ spend about $1,202 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,201 saved annually, at this mileage.

What one full charge costs

At Illinois's rate, fully covering this 2026 Cadillac CELESTIQ's 303-mile EPA range costs about $24.28 (126.3 kWh) — the energy the EPA test actually used, not the battery's rated size.

2026 Cadillac CELESTIQ in Illinois, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Cadillac CELESTIQ in Illinois ranks 15,062 for cost savings versus gas — 1 being the best deal nationally. Separately, the Cadillac CELESTIQ ranks 292 of 400 EV models for raw efficiency, and Illinois ranks 36 of 51 for cheapest residential electricity.

Getting set up to charge a 2026 Cadillac CELESTIQ 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 Illinois electrician quotes for Level 2 install before you commit either way.

More on how this number was built

See the methodology guide for exactly which EIA and EPA figures feed 2026 Cadillac CELESTIQ's cost in Illinois. At 19.22¢/kWh, Illinois sits in the middle of the national range — the guide to why charging cost varies by state shows where.