As of July 2025, most of the no longer operational nuclear reactors worldwide were aged between 21 and 40 years at the time of their closure. A total of 218 nuclear reactors had been closed worldwide at the time, and their average age was 28.7 years, compared with 32 years for operable nuclear reactors.
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WNISR. (September 21, 2025). Number of nuclear reactor shutdowns worldwide as of July 2025, by age class [Graph]. In ÌÇÐÄÆÆ½â°æ. Retrieved July 22, 2026, from /statistics/272139/age-distribution-of-nuclear-reactors-shut-down-worldwide/
WNISR. "Number of nuclear reactor shutdowns worldwide as of July 2025, by age class." Chart. September 21, 2025. ÌÇÐÄÆÆ½â°æ. Accessed July 22, 2026. /statistics/272139/age-distribution-of-nuclear-reactors-shut-down-worldwide/
WNISR. (2025). Number of nuclear reactor shutdowns worldwide as of July 2025, by age class. ÌÇÐÄÆÆ½â°æ. ÌÇÐÄÆÆ½â°æ Inc.. Accessed: July 22, 2026. /statistics/272139/age-distribution-of-nuclear-reactors-shut-down-worldwide/
WNISR. "Number of Nuclear Reactor Shutdowns Worldwide as of July 2025, by Age Class." ÌÇÐÄÆÆ½â°æ, ÌÇÐÄÆÆ½â°æ Inc., 21 Sep 2025, /statistics/272139/age-distribution-of-nuclear-reactors-shut-down-worldwide/
WNISR, Number of nuclear reactor shutdowns worldwide as of July 2025, by age class ÌÇÐÄÆÆ½â°æ, /statistics/272139/age-distribution-of-nuclear-reactors-shut-down-worldwide/ (last visited July 22, 2026)
Number of nuclear reactor shutdowns worldwide as of July 2025, by age class [Graph], WNISR, September 21, 2025. [Online]. Available: /statistics/272139/age-distribution-of-nuclear-reactors-shut-down-worldwide/