AP1000

The AP1000 is a nuclear power plant design, a pressurized water reactor developed and sold by Westinghouse Electric Company. It belongs to the Generation III+ family of reactors and relies heavily on passive nuclear safety systems, engineered to cool the reactor core without external power or operator action in an emergency, alongside design choices intended to lower construction cost. The design descends from Westinghouse's earlier four-loop SNUPPS reactors and the smaller AP600 concept, scaled back up to compete with larger designs on cost per unit of output. AP1000 units are in commercial operation in China, at the Sanmen and Haiyang nuclear power stations, and in the United States, at the Vogtle Electric Generating Plant in Georgia, where Vogtle 3 and Vogtle 4 came online in 2023 and 2024 after significant construction delays and cost overruns; two further AP1000 units planned for the Virgil C. Summer Nuclear Generating Station in South Carolina were cancelled following Westinghouse's 2017 bankruptcy. China has since developed the related CAP1000 and CAP1400 designs, retaining the underlying AP1000 architecture under its own intellectual property. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/