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Zhangzhou Nuclear Power Unit 4 Completes Hoisting of Four Internal Structure Modules

From August 18 to 27, CNNC 24 completed the hoisting of four concrete modules for the internal structure of Zhangzhou Nuclear Power Unit 4 within 10 consecutive days, covering the evaporator compartments of Loops 3, 2, and 1 as well as the pressurizer compartment, creating conditions for subsequent loop installation and commissioning work. The evaporator and pressurizer are key equipment in the nuclear island loops. The corresponding compartment concrete modules serve both load-bearing fixation and protection functions, representing an important embodiment of the "Hualong One" defense-in-depth safety philosophy at the civil construction stage. The four modules hoisted this time are all irregularly shaped structures, all adopting the "off-site prefabrication + integral modular hoisting" process, with a total hoisting weight of approximately 2,400 tons. Compared with Unit 3, Unit 4 achieved 3...

2026-08-28

Sichuan Huadu Nuclear Energy Wins Control Rod Drive Mechanism Orders for 4 Nuclear Power Units

On August 24, news came from Sichuan Huadu Nuclear Equipment Manufacturing Co., Ltd., located in Dujiangyan, Chengdu, Sichuan, that the company has won the orders for control rod drive mechanisms for 4 units among the first batch of nuclear power units approved for construction during the 15th Five-Year Plan period in China, with a total new contract value of 504 million yuan. The winning projects include Units 3 and 4 of Zhejiang Jinqimen Nuclear Power Plant, as well as Units 1 and 2 of Phase I of Liaoning Zhuanghe Nuclear Power. According to the previous approval arrangement by the State Council Executive Meeting, the new batch of nuclear power projects involves a total of 4 projects and 8 units, including Phase II of Zhejiang Jinqimen Nuclear Power, Phase III of Guangdong Taipingling Nuclear Power, Phase I of Liaoning Zhuanghe Nuclear Power, and Phase I of Shandong Laiyang Nuclear Power, all adopting China's self-developed third-generation nuclear power technology...

2026-08-27

Hualong One Pressurizer Electric Heaters Achieve Coverage of Two Major Technical Routes

The pressurizer electric heater is an important safety-class component of the reactor coolant system (primary loop) in pressurized water reactor nuclear power plants, directly affecting unit pressure regulation and safe, stable operation. The localized pressurizer electric heater developed by Chuanyi Instrument Co., Ltd., a subsidiary of SINOMACH Instrumentation Group under SINOMACH Group, has been applied to China's self-developed Generation III nuclear power units such as "Hualong One." The photo shows the qualification prototype of the Hualong One pressurizer electric heater. With the batch construction of Hualong One units advancing, units adopting different technical routes have imposed new customized operating condition requirements on pressurizer electric heaters. In October 2019, Chuanyi Instrument, together with China General Nuclear Power Engineering Co., Ltd., initiated the development of the CGN-version Hualong One pressurizer electric heater...

2026-08-27

Construction of Access Tunnels Commences for Phase III of Taipingling Nuclear Power Project

On August 26, 2026, CGN's Guangdong Taipingling Nuclear Power Plant held a mobilization meeting for the construction of its Phase III project. At the meeting, the "Safety and Quality Responsibility Agreement for the Construction and Operation of CGN Guangdong Taipingling Nuclear Power Plant Phase III Project" was unveiled, aiming to further consolidate safety and quality responsibilities in nuclear power engineering construction, strengthen project quality management, and ensure the safe and orderly progress of project construction. At the mobilization meeting, Zhang Guoqiang, Secretary of the Party Committee and Chairman of CGN Huizhou Nuclear Power Co., Ltd., announced the official commencement of access tunnel construction for the Phase III project. Upon completion of the access tunnel construction, it will help improve the organizational efficiency of project construction in areas such as material transportation and module hoisting, and create conditions for the subsequent pouring of the first batch of nuclear island concrete.

2026-08-27

Liaoning Zhuanghe Nuclear Power Enters Construction Preparation Phase, Expected to Complete 2 Billion Yuan in Project Investment by Year-End

On August 22, 85 heavy and light engineering machinery units entered the site simultaneously to carry out topsoil clearing work on 179,000 square meters of land, marking the official entry of the Liaoning Zhuanghe nuclear power project into the construction preparation phase. Rendering of the Liaoning Zhuanghe nuclear power project. The Liaoning Zhuanghe nuclear power project is the first nuclear power project in Northeast China to adopt the Hualong One, China's self-developed third-generation nuclear power technology. The project plans to build six million-kilowatt-class nuclear power units in three phases, with a total investment of approximately 125 billion yuan. The first phase will construct two units with a total investment of approximately 44.56 billion yuan. It was approved at the executive meeting of the State Council on July 31, received formal approval from the National Development and Reform Commission on August 13, and obtained the advance land use approval from the Liaoning Provincial Department of Natural Resources on August 20, meeting the legal conditions for land construction.

2026-08-25

Deaerator in Place for Unit 1 Conventional Island of Huaneng Shidao Bay Nuclear Power Expansion Project

Recently, the deaerator for Unit 1 conventional island of Phase I Expansion Project of Huaneng Shidao Bay Nuclear Power Station, undertaken by PowerChina Nuclear Engineering Company, was successfully hoisted and placed into position, marking a key milestone in the installation of conventional island equipment for the unit and creating conditions for subsequent turbine equipment installation, piping layout, and system commissioning. The Huaneng Shidao Bay Nuclear Power Base currently hosts a high-temperature gas-cooled reactor demonstration project, the world's first fourth-generation nuclear power plant to achieve commercial operation. The Phase I Expansion Project plans to build two Hualong One units, third-generation nuclear power units independently developed by China, each with a capacity of 1.225 million kilowatts. Upon completion, the project is expected to provide approximately 20 billion kilowatt-hours of clean electricity annually, reduce standard coal consumption by 5.78 million tons, and cut carbon dioxide emissions by 14 million tons.

2026-08-22

First Concrete Pour Launched for Conventional Island of Jinqimen Nuclear Power Unit 2

At 22:16 on August 18, Zhejiang Jinqimen Nuclear Power construction reached another key milestone as the first concrete pour (FCD) for the raft foundation slab of the turbine generator building in the conventional island of Unit 2 was officially launched, marking the full commencement of the main construction of the conventional island of Jinqimen Nuclear Power Unit 2 and the project's official entry into the civil construction phase. The raft foundation slab being poured, as the core load-bearing structure of the conventional island, is a variable-cross-section, super-large-volume, waterproof and impermeable special concrete structure, and is the core section with the largest volume, most critical working conditions, and highest precision requirements among the conventional island raft foundation structures. This construction involves long continuous operation hours, stringent temperature control and crack prevention requirements, and significant construction organization challenges. To ensure the safe and high-quality completion of the project, CNNC Zheneng fully demonstrated the "owner" spirit, played the "backbone" role, and shouldered the "main force" responsibility, jointly establishing a dedicated technical task force with construction and supervision units, building on the mature FCD construction experience of Conventional Island Unit 1 to comprehensively optimize the raft construction process for Conventional Island Unit 2, strictly adhering to the highest quality standards and safety regulations for nuclear power construction.

2026-08-20

First PCS Heat Exchanger Pre-Introduction Successfully Completed at Zhejiang Jinqimen Nuclear Power Project

On August 16, the pre-introduction of the first PCS heat exchanger at the Zhejiang Jinqimen Nuclear Power Project, undertaken by China Nuclear Industry Fifth Construction Co., Ltd. (CNFC), was successfully completed. The entire introduction process was smooth and orderly, with safety and quality fully under control. The smooth pre-introduction of this PCS heat exchanger has laid a solid foundation for the subsequent modular dome lifting and overall project construction. As a core key equipment in the reactor building, the PCS heat exchanger features heavy weight, high installation precision, and significant difficulty. To ensure lifting safety, the project team organized 7 special discussions and 5 on-site surveys, sorted out preconditions, fabricated dedicated angle tooling, and clarified operation procedures and safety control points. During the lifting, management personnel provided full-time on-site supervision, with commanders and operators working in close coordination to strictly control equipment positioning. After 3 hours of continuous operation, a series of processes including equipment lifting, flipping to vertical, fine angle adjustment, and equipment pre-introduction were precisely completed, and the equipment was finally placed smoothly, marking the successful completion of the pre-introduction work.

2026-08-19

Prefabricated Module for Evaporator Compartment of Loop 3 in Internal Structure of Unit 4 at Zhangzhou Nuclear Power Plant Successfully Hoisted

At 10:18 on August 18, the prefabricated module for the evaporator compartment of Loop 3 in the internal structure of the reactor building of Unit 4 at Zhangzhou Nuclear Power Plant was hoisted into place, with safety and quality under control throughout the entire process. The structures above elevation 16.5 meters in the internal structure of the reactor building of Unit 4 at Zhangzhou Nuclear Power Plant, including the evaporator compartments, pressurizer compartment, and the roof slab of the passive reactor cavity injection tank, adopt a modular construction process featuring off-site prefabrication, integral hoisting, and precise positioning, divided into five concrete modules. The evaporator compartment module of Loop 3 hoisted this time is the first module to be lifted for Unit 4, weighing 454.289 tons, with an overall special L-shaped structure, lifted using a 3200-ton crawler crane. The hoisting operation lasted 3 hours, and Zhangzhou Nuclear Power...

2026-08-19

Construction of Conventional Island and BOP Installation for Units 5 & 6 of Fujian Ningde Nuclear Power Plant Launched

On the morning of August 18, the conventional island and BOP installation works for Units 5 & 6 of CGN Fujian Ningde Nuclear Power Plant were officially launched, marking the transition of the conventional island and BOP works of the Ningde Phase II project from the civil construction stage to the installation stage. This laid a solid foundation for the orderly advancement of key project tasks, including the main-line construction of the turbine generator units and the scaling-up of piping works for major process systems. As the core works for energy conversion and plant-wide utility support, the conventional island and BOP systems directly determine the construction quality, operational stability, and commissioning timelines of the units. They serve as critical support for ensuring safe and stable power generation and fulfilling the role of clean energy supply, and are of great significance to the high-quality completion and commissioning of the Phase II project...

2026-08-19

What "Hardcore" Technologies Lie Behind the Nuclear Power Plants Inspected by the Minister of Ecology and Environment?

From August 14 to 15, Huang Runqiu, Minister of Ecology and Environment, conducted a research tour on ecological and environmental protection work in Lishui, Taizhou, and Ningbo cities of Zhejiang Province. Actively, safely, and orderly developing nuclear power is an important measure for building a clean, low-carbon, safe, and efficient energy system and for achieving carbon peak and carbon neutrality. Huang Runqiu visited the Sanmen Nuclear Power Plant in Taizhou, going deep into the main control room of the operating unit and the nuclear island building of the unit under construction, to learn in detail about the operating status and construction progress of the nuclear power units, and to express gratitude to the on-site supervision personnel of the East China Nuclear and Radiation Safety Supervision Station. Ensuring the construction quality of nuclear power units is crucial to enhancing the safety level of nuclear power plants. Huang Runqiu then visited the Jinqimen Nuclear Power Plant in Ningbo, where he inspected the nuclear island foundation area to review the construction progress of the plant and engaged in on-site exchanges with nuclear safety supervision personnel.

2026-08-18

Module 4 of Steel Liner for Unit 3 of San'ao Nuclear Power Plant Successfully Hoisted

At 8:16 a.m. on August 15, the hoisting operation of Module 4 of the 3BRX steel liner for Unit 3 of the San'ao Nuclear Power Plant was officially launched. Under the stable operation of the 2,000-ton crawler crane of CNNC Machinery Engineering, the module successively completed a series of procedures including slewing, load-bearing travel, and alignment adjustment. After 220 minutes, the hoisting task was successfully completed. Module 4 of Unit 3 hoisted this time was integrally assembled from the fourth and fifth layers of the cylinder, with a diameter of approximately 45 meters and a height of 11.46 meters. The module features a large volume, susceptibility to deformation, and limited slewing space for the crane. The project team strictly implemented the special plan, completed site reinforcement, transport of baskets and counterweights, and crawler crane relocation in advance, organized hoisting simulation drills, and comprehensively inspected various safety hazards...

2026-08-18

Huaneng Nuclear Energy Research Institute Conducts First Specialized Training on Hualong One System Principles

To enhance the Institute's technical support services and scientific research capabilities regarding Hualong One technology, and to strengthen employees' systematic understanding of Hualong One, Huaneng Nuclear Energy Research Institute organized training on Hualong One system principles, completing the first specialized session on August 12. A total of 101 company leaders and employees participated in the training through a combination of online and offline methods. The first training session reviewed China's path toward independent development of pressurized water reactor technology from an industry development perspective, systematically outlining the global evolution of nuclear power technology and the safety design criteria for Generation III nuclear power. By benchmarking against mainstream Generation III reactor designs such as the US AP1000 and European EPR, the session provided in-depth explanations of Hualong One's dual safety architecture combining active and passive safety systems...

2026-08-18

Successful Hoisting of Module 3 of the Passive Containment Cooling Water Tank for Unit 4 of Zhangzhou Nuclear Power Plant

On August 15, the hoisting of Module 3 of the passive containment cooling water tank in the reactor building of the nuclear island of Unit 4 at Zhangzhou Nuclear Power Plant was successfully completed, with the entire hoisting process being safe and quality-controlled. The passive containment cooling water tank is an important component of the passive part of the containment cooling water injection system. With a total height of 22.02 meters, it features a non-uniform cross-section in an approximately fan-shaped structure and is planned as three integral modules. Module 3, hoisted this time, had a total lifting weight of approximately 132.8 tons and a height of 5.84 meters, and was positioned using a 2000-ton-class crawler crane. As the crane slowly lifted the module, through a series of precise operations including hook lifting, boom slewing, crane traveling, and luffing, Module 3 was smoothly placed onto Module 2 of the passive containment cooling water tank, with the entire process proceeding seamlessly...

2026-08-17

Faculty and Students from King Abdulaziz University Visit CNECC Langfang Base

On August 12, 2026, a delegation of faculty and students from King Abdulaziz University in Saudi Arabia visited the CNECC Langfang R&D Base for an on-site tour and academic exchange. Yuan Yidan, Chief Expert of the company, received the visiting delegation. This event promoted talent exchange between China and Saudi Arabia in the nuclear energy sector, further deepened mutual connectivity in areas such as nuclear energy technology R&D, talent cultivation, and scientific research innovation, and contributed to win-win international cooperation in nuclear energy. During the exchange, technical experts at the base warmly received the Saudi delegation and provided detailed introductions to CNECC's achievements and core strengths in nuclear power engineering design, advanced nuclear energy technology R&D, nuclear safety system development, and the implementation of overseas nuclear power projects...

2026-08-15