Electricity Cost in Illinois
The residential electricity rate in Illinois is 17.69¢ per kilowatt-hour (kWh), ranking #35 cheapest among all 51 US states. The national average is 17.92¢/kWh, making Illinois 1% below average.
17.69¢
Residential
#35
Price Rank
15.3%
Renewable
| Residential Rate | 17.69¢/kWh |
| Commercial Rate | 13.07¢/kWh |
| Industrial Rate | 10.14¢/kWh |
| US Average (Residential) | 17.92¢/kWh |
Residential electricity in Illinois is 17.69¢/kWh, within two percent of the 17.92¢/kWh U.S. average, ranking 35th cheapest of 51 states and territories.
Across rate classes, commercial customers pay 13.07¢/kWh and industrial customers 10.14¢/kWh — a 2.93¢/kWh gap that reflects the volume discounts large industrial loads receive. Renewables make up 15.3% of Illinois's generation mix; the dominant source is nuclear at 53.6%, followed by natural gas at 16.3%.
In 2024, Illinois generated about 185,013 GWh of electricity in total.
Source: U.S. Energy Information Administration, 2026.