Illinois
Electricity costs 17.69¢/kWh residential, ranking #35 cheapest in the US. 15.3% renewable energy.
17.69¢
Residential Rate
#35
Price Rank (Cheapest)
15.3%
Renewable Energy
#27
Renewable Rank
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Electricity Rates
| Residential | 17.69¢/kWh |
| Commercial | 13.07¢/kWh |
| Industrial | 10.14¢/kWh |
| National Average | 17.92¢/kWh |
Electricity Generation Mix
Nuclear
53.6%
Natural Gas
16.3%
Coal
14.6%
Wind
13.5%
Solar
1.7%
Other
0.4%
Frequently Asked Questions
The residential electricity rate in Illinois is 17.69¢ per kilowatt-hour, ranking #35 cheapest out of 51 states. The national average is 17.92¢/kWh, making Illinois 1% below average.
15.3% of Illinois's electricity comes from renewable sources, ranking #27 among all states. The largest generation source is Nuclear at 53.6%.
Illinois's residential rate of 17.69¢/kWh is 1% below the national average of 17.92¢/kWh. Commercial rates are 13.07¢/kWh and industrial rates are 10.14¢/kWh.
Related State Energy Profiles
16.23¢/kWh residential · 14.4% renewable
16.96¢/kWh residential · 5.3% renewable
17.13¢/kWh residential · 4.4% renewable
18.16¢/kWh residential · 12.3% renewable
19.30¢/kWh residential · 3.5% renewable
22.92¢/kWh residential · 99.8% renewable
Electricity rates from EIA retail sales data. Prices in cents per kilowatt-hour. Generation mix from EIA electric power operational data. Rankings based on residential rates.
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.