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Prices here are state averages across all utilities and rate plans, from the U.S. Energy Information Administration — not the rate on any one bill. Generation-mix figures are reported annually, not real time.

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Wind Power in Illinois

Net generation and share of the state power mix, 2025 — U.S. Energy Information Administration.

Wind generation (2025)
25,011 thousand MWh
Share of state power mix
12.93%
National rank (wind output)
#5
U.S. average share
10.48%

Wind share of Illinois's power mix over time

2001: 2025: 12.93%

Year by year

YearWind (thousand MWh)Share of state mix
202525,01112.93%
202424,91013.46%
202321,80812.27%
202223,49412.68%
202119,13310.53%
202016,2269.36%
201914,4607.84%
201811,8996.33%
201712,2686.68%
201610,6635.69%
201510,7475.54%
201410,0834.99%
20139,6254.74%
20127,7273.91%
20116,2133.11%
20104,4542.21%
20092,8201.45%
20082,3371.17%
20076640.33%
20062550.13%
20051410.07%
2004780.04%
2003180.01%
2002
2001

Source: U.S. Energy Information Administration, electric power operational data (net generation by state and energy source). "Share of state mix" is this fuel's net generation as a percentage of all in-state net generation.

Wind Power in Illinois | EnergyAtlasUSA