91.0%
2025 (latest)
NUCLEAR CAPACITY FACTOR
percent · 1973–2025 · neither direction is "better" · U.S. Energy Information Administration, Monthly Energy Review
53.5%
1973
93.4%
high · 2019
47.8%
low · 1974
+38 pts
since 1973
┊ dashed lines mark 1979 Oil shock & inflation peak · 1987 Black Monday crash · 1991 Gulf War recession · 2001 Dot-com bust & 9/11 · 2008 Global financial crisis · 2020 COVID-19 pandemic
Method & caveats. MSN NUCASUS; publisher annual row (MER YYYY13). Original unit: Percent. Converted only by the declared unit scale. None known; publisher revisions may revise the full history. Breaks: none known; publisher revisions may revise the full history.
Sources
Every value on this page is read from the publisher below. Current and historical source documents:
- https://api.eia.gov/v2/total-energy/data/?frequency=annual&data%5B0%5D=value&facets%5Bmsn%5D%5B%5D=NUCASUS&length=5000&sort%5B0%5D%5Bcolumn%5D=period&sort%5B0%5D%5Bdirection%5D=asc
- https://github.com/danielmiessler/substrate/tree/main/Data/US-Energy-And-Environment
Data
| Year | Nuclear capacity factor | Change |
|---|---|---|
| 2025 | 91.0% | +0.2 pts |
| 2024 | 90.8% | −2.2 pts |
| 2023 | 93.0% | +0.3 pts |
| 2022 | 92.7% | −0.1 pts |
| 2021 | 92.8% | +0.4 pts |
| 2020 | 92.4% | −1.0 pts |
| 2019 | 93.4% | +0.9 pts |
| 2018 | 92.5% | +0.2 pts |
| 2017 | 92.3% | +0.0 pts |
| 2016 | 92.3% | +0.0 pts |
| 2015 | 92.3% | +0.6 pts |
| 2014 | 91.7% | +0.9 pts |
| 2013 | 90.8% | +4.2 pts |
| 2012 | 86.6% | −2.5 pts |
| 2011 | 89.1% | −2.0 pts |
| 2010 | 91.1% | +0.8 pts |
| 2009 | 90.3% | −0.8 pts |
| 2008 | 91.1% | −0.7 pts |
| 2007 | 91.8% | +2.2 pts |
| 2006 | 89.6% | +0.3 pts |
| 2005 | 89.3% | −0.8 pts |
| 2004 | 90.1% | +2.2 pts |
| 2003 | 87.9% | −2.4 pts |
| 2002 | 90.3% | +0.9 pts |
| 2001 | 89.4% | +1.3 pts |
| 2000 | 88.1% | +2.8 pts |
| 1999 | 85.3% | +7.1 pts |
| 1998 | 78.2% | +7.1 pts |
| 1997 | 71.1% | −5.1 pts |
| 1996 | 76.2% | −1.2 pts |
| 1995 | 77.4% | +3.6 pts |
| 1994 | 73.8% | +3.3 pts |
| 1993 | 70.5% | −0.4 pts |
| 1992 | 70.9% | +0.7 pts |
| 1991 | 70.2% | +4.2 pts |
| 1990 | 66.0% | +3.8 pts |
| 1989 | 62.2% | −1.3 pts |
| 1988 | 63.5% | +6.1 pts |
| 1987 | 57.4% | +0.5 pts |
| 1986 | 56.9% | −1.1 pts |
| 1985 | 58.0% | +1.7 pts |
| 1984 | 56.3% | +1.9 pts |
| 1983 | 54.4% | −2.2 pts |
| 1982 | 56.6% | −1.6 pts |
| 1981 | 58.2% | +1.9 pts |
| 1980 | 56.3% | −2.1 pts |
| 1979 | 58.4% | −6.1 pts |
| 1978 | 64.5% | +1.2 pts |
| 1977 | 63.3% | +8.6 pts |
| 1976 | 54.7% | −1.2 pts |
| 1975 | 55.9% | +8.1 pts |
| 1974 | 47.8% | −5.7 pts |
| 1973 | 53.5% | — |
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