As of July 2025, most nuclear reactors in the world had been operational for over ** years. At the time, the mean age of reactors was ** years, and only ** nuclear reactors had been connected to the power grid within the last 10 years. The United States was home to the largest number of operable nuclear reactors.
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WNISR. (September 21, 2025). Number of operable nuclear reactors worldwide as of July 2025, by average age [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 20, 2026, from /statistics/517060/average-age-of-nuclear-reactors-worldwide/
WNISR. "Number of operable nuclear reactors worldwide as of July 2025, by average age." Chart. September 21, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 20, 2026. /statistics/517060/average-age-of-nuclear-reactors-worldwide/
WNISR. (2025). Number of operable nuclear reactors worldwide as of July 2025, by average age. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 20, 2026. /statistics/517060/average-age-of-nuclear-reactors-worldwide/
WNISR. "Number of Operable Nuclear Reactors Worldwide as of July 2025, by Average Age." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 21 Sep 2025, /statistics/517060/average-age-of-nuclear-reactors-worldwide/
WNISR, Number of operable nuclear reactors worldwide as of July 2025, by average age ÌÇÐÄÆƽâ°æ, /statistics/517060/average-age-of-nuclear-reactors-worldwide/ (last visited July 20, 2026)
Number of operable nuclear reactors worldwide as of July 2025, by average age [Graph], WNISR, September 21, 2025. [Online]. Available: /statistics/517060/average-age-of-nuclear-reactors-worldwide/
