As of December 31, 2023, all operational pressurized water reactors (PWR) worldwide achieved a net electrical power output of 290.7 gigawatts. PWRs are the most common type of nuclear reactor used in nuclear power plants, with 304 in operation at that time. Boiling water reactors (BWR) were the second most used reactor type, with a net electrical power of 43 gigawatts.
Net electrical power of operational nuclear reactors worldwide as of December 2023, by reactor type
(in gigawatts)
Reactor type
Power output in gigawatts
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PWR: Pressurized water reactor.
BWR: Boiling water reactor.
PHWR: Pressurized heavy water reactor.
GCR: Gas-cooled reactor.
LWGR: Light water graphite reactor.
FBR: Fast breeder reactor.
HTGR: High temperature Gas Cooled Reactor.
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IAEA. (July 16, 2024). Net electrical power of operational nuclear reactors worldwide as of December 2023, by reactor type (in gigawatts) [Graph]. In Statista. Retrieved August 24, 2024, from https://www.statista.com/statistics/238480/power-output-of-nuclear-power-plants-worldwide-by-reactor-type/
IAEA. "Net electrical power of operational nuclear reactors worldwide as of December 2023, by reactor type (in gigawatts)." Chart. July 16, 2024. Statista. Accessed August 24, 2024. https://www.statista.com/statistics/238480/power-output-of-nuclear-power-plants-worldwide-by-reactor-type/
IAEA. (2024). Net electrical power of operational nuclear reactors worldwide as of December 2023, by reactor type (in gigawatts). Statista. Statista Inc.. Accessed: August 24, 2024. https://www.statista.com/statistics/238480/power-output-of-nuclear-power-plants-worldwide-by-reactor-type/
IAEA. "Net Electrical Power of Operational Nuclear Reactors Worldwide as of December 2023, by Reactor Type (in Gigawatts)." Statista, Statista Inc., 16 Jul 2024, https://www.statista.com/statistics/238480/power-output-of-nuclear-power-plants-worldwide-by-reactor-type/
IAEA, Net electrical power of operational nuclear reactors worldwide as of December 2023, by reactor type (in gigawatts) Statista, https://www.statista.com/statistics/238480/power-output-of-nuclear-power-plants-worldwide-by-reactor-type/ (last visited August 24, 2024)
Net electrical power of operational nuclear reactors worldwide as of December 2023, by reactor type (in gigawatts) [Graph], IAEA, July 16, 2024. [Online]. Available: https://www.statista.com/statistics/238480/power-output-of-nuclear-power-plants-worldwide-by-reactor-type/
