As of July 2024, pressurized light-water moderated and cooled reactors (PWR) were the most common types of nuclear reactor worldwide, with 307 units. This accounted for roughly 73 percent of operable reactors at the time. Pressurized heavy-water moderated and cooled reactors followed, with 47 units.
Number of operable nuclear reactors worldwide as of July 2024, by reactor type
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IAEA. (July 16, 2024). Number of operable nuclear reactors worldwide as of July 2024, by reactor type [Graph]. In Statista. Retrieved February 16, 2025, from https://www.statista.com/statistics/513584/number-of-operable-nuclear-reactors-by-type-worldwide/?__sso_cookie_checker=failed
IAEA. "Number of operable nuclear reactors worldwide as of July 2024, by reactor type." Chart. July 16, 2024. Statista. Accessed February 16, 2025. https://www.statista.com/statistics/513584/number-of-operable-nuclear-reactors-by-type-worldwide/?__sso_cookie_checker=failed
IAEA. (2024). Number of operable nuclear reactors worldwide as of July 2024, by reactor type. Statista. Statista Inc.. Accessed: February 16, 2025. https://www.statista.com/statistics/513584/number-of-operable-nuclear-reactors-by-type-worldwide/?__sso_cookie_checker=failed
IAEA. "Number of Operable Nuclear Reactors Worldwide as of July 2024, by Reactor Type." Statista, Statista Inc., 16 Jul 2024, https://www.statista.com/statistics/513584/number-of-operable-nuclear-reactors-by-type-worldwide/?__sso_cookie_checker=failed
IAEA, Number of operable nuclear reactors worldwide as of July 2024, by reactor type Statista, https://www.statista.com/statistics/513584/number-of-operable-nuclear-reactors-by-type-worldwide/?__sso_cookie_checker=failed (last visited February 16, 2025)
Number of operable nuclear reactors worldwide as of July 2024, by reactor type [Graph], IAEA, July 16, 2024. [Online]. Available: https://www.statista.com/statistics/513584/number-of-operable-nuclear-reactors-by-type-worldwide/?__sso_cookie_checker=failed
