According to the source, planned nuclear reactors have approvals, funding, or commitments in place, mostly expected to be operational within the next 15 years.
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Planned global nuclear power reactor additions 2026, by country
As of February 2026, more than one third of the planned nuclear reactors worldwide were in China. This country planned the construction of 43 nuclear units out of the total global number of 115. Russia followed in second place with 23 planned nuclear reactors.Â
Nuclear reactors
Nuclear reactors are used to start and control a nuclear chain reaction in power plants. The heat from the reaction is transferred to a working fluid, which in turn runs through turbines for both electricity generation and ship propulsion. Nuclear reactors can also be used in the creation of isotopes for medical or industrial purposes, as well as for weapons production. The mean construction time for global nuclear reactors completed between 2014 and 2023 averaged 10 years, ranging from a minimum of six in China to a maximum of 38 in Slovakia.Â
Nuclear power reactors worldwide
While China and Russia had the largest number of planned nuclear reactors, the United States reported the largest number of operable nuclear reactors at as of February 2026, with 94 units. In terms of nuclear reactors under construction, China led the ranking, with 37 units as of February 2026.
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World Nuclear Association. (May 2, 2025). Number of planned nuclear power reactors worldwide as of February 2026, by country [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 22, 2026, from /statistics/268154/number-of-planned-nuclear-reactors-in-various-countries/
World Nuclear Association. "Number of planned nuclear power reactors worldwide as of February 2026, by country." Chart. May 2, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 22, 2026. /statistics/268154/number-of-planned-nuclear-reactors-in-various-countries/
World Nuclear Association. (2025). Number of planned nuclear power reactors worldwide as of February 2026, by country. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 22, 2026. /statistics/268154/number-of-planned-nuclear-reactors-in-various-countries/
World Nuclear Association. "Number of Planned Nuclear Power Reactors Worldwide as of February 2026, by Country." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 2 May 2025, /statistics/268154/number-of-planned-nuclear-reactors-in-various-countries/
World Nuclear Association, Number of planned nuclear power reactors worldwide as of February 2026, by country ÌÇÐÄÆƽâ°æ, /statistics/268154/number-of-planned-nuclear-reactors-in-various-countries/ (last visited July 22, 2026)
Number of planned nuclear power reactors worldwide as of February 2026, by country [Graph], World Nuclear Association, May 2, 2025. [Online]. Available: /statistics/268154/number-of-planned-nuclear-reactors-in-various-countries/
