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Nuclear Power in Illinois
Net generation and share of the state power mix, 2025 — U.S. Energy Information Administration.
Nuclear generation (2025)
97,670 thousand MWh
Share of state power mix
50.5%
National rank (nuclear output)
#1
U.S. average share
17.72%
Nuclear share of Illinois's power mix over time
2001: 51.53% → 2025: 50.5%
Year by year
| Year | Nuclear (thousand MWh) | Share of state mix |
|---|---|---|
| 2025 | 97,670 | 50.5% |
| 2024 | 99,212 | 53.62% |
| 2023 | 97,559 | 54.89% |
| 2022 | 98,870 | 53.38% |
| 2021 | 96,994 | 53.4% |
| 2020 | 100,246 | 57.81% |
| 2019 | 98,735 | 53.52% |
| 2018 | 98,102 | 52.18% |
| 2017 | 97,191 | 52.94% |
| 2016 | 98,607 | 52.65% |
| 2015 | 97,282 | 50.16% |
| 2014 | 97,858 | 48.41% |
| 2013 | 97,131 | 47.85% |
| 2012 | 96,401 | 48.79% |
| 2011 | 95,823 | 48.03% |
| 2010 | 96,190 | 47.77% |
| 2009 | 95,474 | 49.25% |
| 2008 | 95,152 | 47.7% |
| 2007 | 95,729 | 47.8% |
| 2006 | 94,154 | 48.93% |
| 2005 | 93,263 | 48.04% |
| 2004 | 92,047 | 47.95% |
| 2003 | 94,733 | 50.11% |
| 2002 | 90,860 | 48.32% |
| 2001 | 92,358 | 51.53% |
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.