United States Nuclear Power: Generation, Share and Trend
The United States generated 785 TWh of electricity from nuclear in 2025, 17.4% of its total, according to Ember. That made it the largest nuclear power producer in 2025 of the 32 countries with Ember data, comparing each country's latest year. Nuclear supplied 8.8% of the world's electricity in 2025. These are annual statistics for 2025, with monthly figures through October 2026; they are compiled from national sources and are not real time.
Key Facts
- The United States generated 785 TWh of electricity from nuclear in 2025.
- Nuclear supplied 17.4% of the United States' electricity in 2025.
- The United States was the largest nuclear power producer in 2025 among the 32 countries with Ember data, comparing each country's latest year.
- The United States' nuclear generation in 2025 was 1% lower than in 2020, when it was 790 TWh.
- The United States' nuclear generation in 2025 was 2% lower than in 2015, when it was 797 TWh.
- The United States' nuclear generation peaked at 809 TWh in 2019.
- The United States' nuclear share in 2025 was above the world share of 8.8%.
- The United States had 96.9 GW of nuclear generating capacity in 2025.
Key Figures, 2025
| Measure | Value | As of / source |
|---|---|---|
| Nuclear generation | 785 TWh | 2025 · Ember |
| Share of the United States' electricity | 17.4% | 2025 · Ember |
| World share of nuclear | 8.8% | 2025 · Ember |
| Rank by nuclear generation (each country's latest year) | 1 of 32 | 2025 · Ember |
| Nuclear capacity | 96.9 GW | 2025 · Ember |
Nuclear Generation Year by Year
Ember annual statistics, 2000 to 2025| Year | Nuclear |
|---|---|
| 2000 | 754 TWh |
| 2001 | 769 TWh |
| 2002 | 780 TWh |
| 2003 | 764 TWh |
| 2004 | 789 TWh |
| 2005 | 782 TWh |
| 2006 | 787 TWh |
| 2007 | 806 TWh |
| 2008 | 806 TWh |
| 2009 | 799 TWh |
| 2010 | 807 TWh |
| 2011 | 790 TWh |
| 2012 | 769 TWh |
| 2013 | 789 TWh |
| 2014 | 797 TWh |
| 2015 | 797 TWh |
| 2016 | 806 TWh |
| 2017 | 805 TWh |
| 2018 | 807 TWh |
| 2019 | 809 TWh |
| 2020 | 790 TWh |
| 2021 | 780 TWh |
| 2022 | 772 TWh |
| 2023 | 775 TWh |
| 2024 | 782 TWh |
| 2025 | 785 TWh |
| Year | United States | World |
|---|---|---|
| 2000 | 19.8% | 16.6% |
| 2001 | 20.6% | 16.9% |
| 2002 | 20.3% | 16.5% |
| 2003 | 19.7% | 15.6% |
| 2004 | 20.0% | 15.6% |
| 2005 | 19.4% | 15.0% |
| 2006 | 19.5% | 14.7% |
| 2007 | 19.5% | 13.7% |
| 2008 | 19.6% | 13.4% |
| 2009 | 20.3% | 13.3% |
| 2010 | 19.6% | 12.8% |
| 2011 | 19.3% | 11.9% |
| 2012 | 19.0% | 10.8% |
| 2013 | 19.5% | 10.6% |
| 2014 | 19.5% | 10.5% |
| 2015 | 19.5% | 10.6% |
| 2016 | 19.7% | 10.4% |
| 2017 | 19.9% | 10.2% |
| 2018 | 19.2% | 10.1% |
| 2019 | 19.5% | 10.3% |
| 2020 | 19.5% | 9.9% |
| 2021 | 18.8% | 9.8% |
| 2022 | 18.0% | 9.1% |
| 2023 | 18.2% | 9.1% |
| 2024 | 17.8% | 9.0% |
| 2025 | 17.4% | 8.8% |
| Year | Generation | Share | World share | Capacity |
|---|---|---|---|---|
| 2025 | 785 TWh | 17.4% | 8.8% | 96.9 GW |
| 2024 | 782 TWh | 17.8% | 9.0% | 96.8 GW |
| 2023 | 775 TWh | 18.2% | 9.1% | 95.7 GW |
| 2022 | 772 TWh | 18.0% | 9.1% | 94.7 GW |
| 2021 | 780 TWh | 18.8% | 9.8% | 95.6 GW |
| 2020 | 790 TWh | 19.5% | 9.9% | 96.5 GW |
| 2019 | 809 TWh | 19.5% | 10.3% | 98.1 GW |
| 2018 | 807 TWh | 19.2% | 10.1% | 99.4 GW |
| 2017 | 805 TWh | 19.9% | 10.2% | 99.6 GW |
| 2016 | 806 TWh | 19.7% | 10.4% | 99.6 GW |
Full year by year history for United States
Source: Ember (ember-energy.org), licensed under CC BY 4.0. Data as of 2025. World shares are Ember's World totals; ranks compare each country's latest year, which can differ between countries.
Nuclear Generation Month by Month
Ember monthly statistics through October 2026| Month | Nuclear |
|---|---|
| 2024-11 | 61.9 TWh |
| 2024-12 | 71.2 TWh |
| 2025-01 | 71.7 TWh |
| 2025-02 | 61.8 TWh |
| 2025-03 | 62.5 TWh |
| 2025-04 | 57.9 TWh |
| 2025-05 | 62.1 TWh |
| 2025-06 | 66.2 TWh |
| 2025-07 | 70.8 TWh |
| 2025-08 | 70.7 TWh |
| 2025-09 | 65.5 TWh |
| 2025-10 | 59.2 TWh |
| 2025-11 | 63.8 TWh |
| 2025-12 | 72.5 TWh |
| 2026-01 | 73.3 TWh |
| 2026-02 | 62.4 TWh |
| 2026-03 | 62.1 TWh |
| 2026-04 | 57.4 TWh |
| 2026-05 | 65.0 TWh |
| 2026-06 | 68.8 TWh |
| 2026-07 | 71.2 TWh |
| 2026-08 | 70.7 TWh |
| 2026-09 | 65.6 TWh |
| 2026-10 | 60.9 TWh |
Source: Ember (ember-energy.org), licensed under CC BY 4.0. Data as of October 2026. Monthly figures for the United States can differ slightly from the annual totals.
Related
Cite this page
World Power Monitor. (2026). United States Nuclear Power: Generation, Share and Trend. https://worldpowermonitor.com/countries/united-states/nuclear/
World Power Monitor. United States Nuclear Power: Generation, Share and Trend. Data as of 2026-10. Data from Ember. https://worldpowermonitor.com/countries/united-states/nuclear/
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title = {{United States Nuclear Power: Generation, Share and Trend}},
author = {{World Power Monitor}},
year = {2026},
note = {Data as of 2026-10. Data from Ember.},
url = {https://worldpowermonitor.com/countries/united-states/nuclear/}
} Permalink: https://worldpowermonitor.com/countries/united-states/nuclear/
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