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Poured! "Chilong One"!

On November 6, the world's first large-scale coupling project between nuclear energy and the petrochemical industry achieved another important milestone: the first batch of concrete was poured for the nuclear island of the world's first commercial "Chilong One" high-temperature gas-cooled reactor. This is a major breakthrough in China's comprehensive utilization of nuclear energy, and an important practice of CNNC working with all parties to thoroughly implement General Secretary Xi Jinping's new energy security strategy of "Four Revolutions and One Cooperation," promote energy transition with new quality productive forces, and create a new calling card for China's nuclear energy. The Jiangsu Xuwei Nuclear Heating and Power Plant is the world's first large-scale coupling project between nuclear energy and the petrochemical industry, the world's first coupling project between a pressurized water reactor and a high-temperature gas-cooled reactor, and the world's first application project of the "reactor-turbine-heat" coordinated control mode...

2026-11-06

China Xuwu Unit 3 Plans First Concrete Pour for Nuclear Island

Recently, Unit 3 of the Phase I project of the Jiangsu Xuwu Nuclear Heating and Power Plant has finalized the plan for the first concrete pour of the nuclear island, marking an important preparatory milestone for the project construction. The unit is constructed and operated by CNNC Suneng Nuclear Power Co., Ltd., which is controlled and invested by China National Nuclear Power Co., Ltd. The project intends to advance the main construction of the nuclear island through this engineering milestone, while the actual implementation status remains subject to confirmation by subsequent engineering information. Regulatory licensing has provided the prerequisite for the relevant construction. The National Nuclear Safety Administration completed the review of the application documents, issued a construction license to Unit 3, and through on-site readiness supervision and inspection, confirmed that the conditions for the first concrete pour of the nuclear island foundation are met, allowing the relevant work to proceed. The license...

2026-11-06

CNNC Huaxing's Self-Developed "Island-Building Machine" Completes First Jacking at Xuwei Project

Recently, the containment construction integrated platform (referred to as the "Island-Building Machine") for Unit 1 of the Jiangsu Xuwei Nuclear Heating and Power Plant, constructed and independently developed by CNNC Huaxing, successfully completed its first jacking, officially transitioning from installation and commissioning to the autonomous climbing phase. The platform integrates self-climbing, enclosed operations, and intelligent monitoring, and innovatively adopts a lightweight modular design. It incorporates equipment such as the platform system, wall-attached supports, hydraulic climbing, safety monitoring, and folding-boom cranes, effectively reducing R&D costs and improving assembly and disassembly efficiency. The Island-Building Machine has three core functions: first, the hydraulic system drives synchronous jacking of machine positions, eliminating dependence on tower cranes for repeated lifting of formwork hanging frames; second, the top platform also serves as a material yard, with folding-boom cranes...

2026-10-03

Innovating the Safety Review Pathway to Strengthen the Safety Foundation of High-Temperature Gas-Cooled Reactors — National Nuclear Safety Administration Approves Safety Design Criteria for High-Temperature Gas-Cooled Reactors

Recently, the National Nuclear Safety Administration approved the Safety Design Criteria for the High-Temperature Gas-Cooled Reactor of the Jiangsu Xuwei Nuclear Heating and Power Plant (hereinafter referred to as the Safety Design Criteria). This document further refines the specific safety requirements for high-temperature gas-cooled reactors, provides a foundational basis for the safety design of high-temperature gas-cooled reactors, and serves as an important basis for subsequent safety review. This is China's first approved safety design criteria for small nuclear power reactors (hereinafter referred to as small nuclear power reactors), marking that the safety review of small nuclear power reactors has explored a new pathway led by safety design criteria. I. Relevant Background: The Rapid Development of Small Nuclear Power Reactors Calls for Innovation in Review Methods. In recent years, global advanced nuclear energy technologies have been accelerating their evolution...

2026-09-30

Module III of the steel liner of the nuclear island containment vessel for Unit 1 of the Jiangsu Xuwei Nuclear Heating and Power Plant was hoisted into place

On September 15, good news came from the construction milestone of Unit 1 of the Jiangsu Xuwei Nuclear Heating and Power Plant — the first nuclear power unit to start construction during China's 15th Five-Year Plan period — as Module III of the steel liner of the nuclear island containment vessel was successfully hoisted into place, marking another key progress in the project's main construction. Module III hoisted this time adopted a two-layer cylindrical wall panel assembly structure, with a module dead weight of 133 tonnes, an overall lifting weight of 258.52 tonnes, a module body height of 11 meters, and a hoisting elevation of 15.75 meters. As the module landed smoothly in place, the already installed Module I and Module II were connected with Module III as one integrated unit, bringing the cumulative overall height of the containment vessel steel liner cylinder to 31.45 meters. The containment vessel is the core safety barrier of the nuclear island, and the steel liner...

2026-09-16

Hiconics Signs Contract for Main Helium Circulator Variable Frequency Drive Project at Xuwei Nuclear Heating and Power Generation Plant

Recently, Hiconics signed a contract for the main helium circulator variable frequency drive (VFD) project for the high-temperature gas-cooled reactor (HTGR) at the Jiangsu Xuwei Nuclear Heating and Power Plant, and will supply multiple sets of HC2000W four-quadrant water-cooled high-voltage VFDs for the project. This marks the second application of Hiconics' VFD technology in drive scenarios for key equipment related to Generation IV nuclear power, following the HTGR demonstration project at Huaneng Shandong Shidao Bay Nuclear Power Plant. The Jiangsu Xuwei Nuclear Heating and Power Generation Project is a comprehensive nuclear energy utilization project that adopts a coordinated operation model of "nuclear reactor – turbine generator unit – heating system," focusing primarily on industrial heating while also supplying electricity. Phase I of the project plans to construct two Hualong One pressurized water reactors and one HTR-PM600S high-temperature gas-cooled reactor...

2026-09-02

Installation of STT153A Tower Crane Completed at Jiangsu Xuwei Nuclear Heating and Power Plant by CEEC

On August 6, the installation and commissioning of the first special equipment STT153A tower crane was successfully completed for Section A of the natural draft cooling tower construction and installation project for Units 1, 2, and 3 of Phase I of the Jiangsu Xuwei Nuclear Heating and Power Plant, undertaken by CEEC Mechanization Company. The tower crane installed this time was manufactured by Fushun Yongmao Construction Machinery Co., Ltd., and is positioned at the rebar processing yard of the 1PB cooling tower, with a maximum rated lifting capacity of 10t. The jib length for this installation is 65m, and the standard section height is 37.5m. Based on the on-site machinery configuration, the installation of this tower crane was completed with the coordination of one 130t mobile crane and one 25t mobile crane. The technical team of the CEEC Mechanization Xuwei Project Branch, prior to the formal commencement of the tower crane installation...

2026-08-11

Central Commission for Discipline Inspection and National Supervisory Commission: Toward Innovation and Green Development, Empowering All Industries with Nuclear Energy

Important DiscourseThe nuclear industry is a high-tech strategic industry and a crucial cornerstone of national security. We must adhere to safe development and innovative development, persist in the peaceful use of nuclear energy, comprehensively enhance the core competitiveness of the nuclear industry, and write a new glorious chapter for China's nuclear industry. Empowering All Industries with Nuclear Energy: A Visit to the World's Largest Large-Scale Coupling Demonstration Base of Nuclear Energy and Petrochemical Industry. Panoramic view of the nuclear island of Unit 1 of CNNC Suneng Jiangsu Xuwei Nuclear Heating and Power Plant. Interior view of the nuclear island of Unit 1 of CNNC Suneng Jiangsu Xuwei Nuclear Heating and Power Plant. Rendering of CNNC Suneng Jiangsu Xuwei Nuclear Heating and Power Plant. Night view of Lianyungang Petrochemical Industry Base (All photos provided by CNNC). On the coast of the Yellow Sea, Lianyungang, Jiangsu Province...

2026-08-03