Inner Dome Concrete Pouring of Zhangzhou Nuclear Power Unit 3 Completed

On September 30, as the last batch of concrete was successfully poured into the formwork, China Nuclear Industry 24 Construction Co., Ltd. successfully completed the concrete pouring of the inner dome of the reactor building of the Hualong One Zhangzhou Nuclear Power Unit 3. The achievement of this key milestone marks the full completion of the civil construction of the inner containment for this unit, laying a solid foundation for the subsequent prestressing construction of the containment and the installation of core nuclear equipment. As an important safety barrier of the Hualong One independent third-generation nuclear power technology, the inner dome is located at the top of the nuclear island, and its core function is to ensure the integrity and absolute leak-tightness of the reactor building and prevent the leakage of radioactive substances. Faced with nuclear construction technical challenges such as the complex curved surface structure of the dome and the high difficulty of high-altitude operations, the Zhangzhou Nuclear Power Project Department...

2026-10-02

South China Supervision Station Escorts the Safe and Smooth Transition of Changjiang Nuclear Power Plant Unit 3 to Commercial Operation

Recently, the Changjiang Nuclear Power Plant Unit 3, the first Hualong One nuclear power project constructed by Huaneng Group in the Hainan Free Trade Port, successfully completed a 168-hour full-power trial operation. The achievement of this important milestone marks that the unit has officially met the conditions for commercial operation, and also means that as an important supplement to the clean energy structure of the Hainan Free Trade Port, the project is steadily advancing toward the goal of full commissioning, injecting new vitality into local economic and social development. Looking back at the commissioning process of Unit 3, on April 30 of this year, the unit officially completed its first fuel loading and immediately entered the most critical nuclear commissioning phase. During the commissioning period that lasted for months, every...

2026-09-21

The "Hualong One Independent Innovation Journey" themed interview event was successfully held in Lüsigang, Qidong, Jiangsu

On September 14, the "Hualong One Independent Innovation Journey" themed interview event was held in Lüsigang, Qidong, Jiangsu. Hualong One is China's third-generation pressurized water reactor nuclear power technology with fully independent intellectual property rights. It is known as the "national calling card" of nuclear power and a ‌major national heavy equipment‌, marking that China's nuclear power technology has entered the world's first tier. As one of the important industrial platforms of CNNC for laying out intelligent manufacturing and cultivating new quality productive forces, the Heneng Intelligent Manufacturing Qidong Intelligent Manufacturing Base carries the important mission of transforming the nuclear industry's cutting-edge manufacturing capabilities into the field of high-end civil equipment. The base covers an area of approximately 311 mu, with plans to build 7 core production lines, supported by intelligent unmanned warehousing, and can provide intelligent inspection...

2026-09-17

Hainan Free Trade Port's first "Hualong One", Huaneng Changjiang Nuclear Power Phase II Unit 3 is about to be officially put into operation

The first Hualong One nuclear power unit in the Hainan Free Trade Port, Huaneng Changjiang Nuclear Power Phase II Unit 3, is about to officially enter commercial operation. Huaneng Changjiang Nuclear Power Phase II is equipped with China's independently developed third-generation Hualong One nuclear power technology and adopts the country's first fully independently controllable group-level nuclear power production management system. It can deliver more than 9 billion kWh of clean electricity to the Hainan power grid each year. The Huaneng Changjiang Nuclear Power Phase II project plans to build Unit 3 and Unit 4, two units with a single-unit capacity of 1.2 million kilowatts. After the two units are fully completed, the annual power generation can reach 18 billion kWh, enough to meet the electricity demand of one-third of Hainan Province's population. Huaneng Changjiang Nuclear Power Phase II Unit 3 is about to be officially put...

2026-09-17

Hualong One Version 2.0 Independent Innovation Achievements Presented in Beijing

On September 11, the "Road of Independent Innovation for Hualong One" media tour was launched in Beijing, focusing on presenting the independent innovation achievements and technical advantages of Hualong One Version 2.0. According to reports, Hualong One Version 2.0 adopts Chinese standards and has the capability for 100% domestic production of key equipment, with its safety performance indicators ranking in the first tier among large pressurized water reactors globally. Hualong One is a million-kilowatt-class Generation III pressurized water reactor nuclear power technology developed on the basis of China's more than 40 years of experience in nuclear power research and development, design, manufacturing, construction, and operation, and possesses fully independent intellectual property rights. Hualong One Version 2.0, building on the summary of engineering construction and operational experience of Hualong One, has been launched through independent innovation and overall coordination...

2026-09-12

Construction Site Leveling and Excavation Kicks Off for Hualong One Version 2.0 Demonstration Project of Zhejiang Jinqimen Nuclear Power Phase II

On the morning of September 9, Zhejiang Jinqimen Nuclear Power held a mobilization meeting for high-quality construction of the Hualong One Version 2.0 demonstration project of Phase II, marking the full launch of site leveling and excavation work for Phase II. At the event, Yao Zhaohong, General Manager of Jinqimen Nuclear Power, presented the flag to the Party Member Commando Team for High-Quality Commencement of the Demonstration Project. Zhong Hua, Party Secretary and Chairman of Jinqimen Nuclear Power, delivered a mobilization speech and announced the start of site leveling and excavation work. At 11:11, the first blast for the main excavation of Phase II was successfully detonated, marking that the project construction has entered a stage of accelerated advancement. The mobilization meeting stated that Jinqimen Nuclear Power undertakes the task of constructing the Hualong One Version 2.0 demonstration project, and all participating units and builders must fulfill safety and quality responsibilities, adhere to safety first and quality first, steadily advance project construction, and build a high-standard "New Quality Hualong Demonstration Project."

2026-09-10

People's Daily Focuses on "Hualong One" Zhangzhou Nuclear Power

On September 8, the People's Daily client and the Vision client turned their lenses to Hualong One Zhangzhou Nuclear Power, presenting the entire process of the nuclear island polar crane bridge lifting at Unit 4 of Zhangzhou Nuclear Power in an 8-hour slow live broadcast. This was not only a visual feast of a national heavyweight project, but also a cloud-based review of Hualong One's solid strength. With over one million viewers witnessing online, it showcased Hualong One's millimeter-level engineering precision and the resolute pace of its batch construction, conveying to the world China's confidence and strength in independent innovation in nuclear power through the lens. Documentary of Unit 4 Nuclear Island Polar Crane Bridge Lifting. This slow live broadcast focused on the lifting site of the nuclear island polar crane bridge at Unit 4 of Zhangzhou Nuclear Power...

2026-09-09

Pakistan Karachi Nuclear Power Plant Unit K-3 Connected to Grid After Major Overhaul

At 03:30 local time on September 7, 2026, Unit K-3 of the Karachi Nuclear Power Plant in Pakistan was successfully connected to the grid. Since the unit was disconnected from the grid on July 1, 2026 for this major overhaul, the Chinese and Pakistani teams have worked closely together to successfully complete all maintenance tasks. This overhaul involved heavy workloads and multiple critical points. The CNNC Overseas Operation and Maintenance team planned and deployed in advance, refined the overhaul plan, coordinated and allocated various resources, clarified responsibilities, implemented dynamic tracking and daily work reviews, and efficiently completed key tasks including the modification of the lower half heat shield of the low-pressure cylinder, preventive maintenance of UPS, maintenance of the containment spray pipeline, emergency repair of the emergency compressed air compressor, and technical guidance for turbine overhaul, eliminating equipment hazards and consolidating the foundation for safe unit operation...

2026-09-09

Huaneng Hainan Changjiang Nuclear Power Unit 4 Completes Cold Functional Test

At 12:50 on September 6, the cold functional test of Unit 4 at Huaneng Hainan Changjiang Nuclear Power was successfully completed, marking the unit's official full entry into the commissioning phase and laying the foundation for subsequent high-quality power generation and grid connection. This project is the first large-scale pressurized water reactor nuclear power project constructed under majority ownership by China Huaneng Group Co., Ltd., and also the first Hualong One nuclear power project in Hainan Province. The cold functional test, also known as the cold hydrostatic test of the primary circuit in a nuclear power plant, is an important milestone in nuclear power engineering construction. It is primarily used to comprehensively verify the integrity and leak-tightness of pressure boundaries, including primary circuit pipeline welds, equipment, and high-pressure sections of connected systems, ensuring the safety and stability of the primary circuit during subsequent operation...

2026-09-08

First Emergency Diesel Generator Successfully Introduced at Unit 6 of Lufeng Nuclear Power Plant

On September 4, 2026, the first emergency diesel generator for Unit 6 of Lufeng Nuclear Power Plant was successfully introduced into the diesel generator building. The emergency diesel generator is a critical required power source during the cold test phase of a nuclear power unit. The successful introduction of this equipment ensured the availability of emergency power during the cold test period, providing a solid power guarantee for the smooth execution of subsequent cold test work for Unit 6. The Installation Management Section of Lufeng Nuclear Power shifted from passive waiting to proactive action, planning the diesel generator introduction route in advance. The greatest challenge of this introduction task was the deep pit backfill adjacent to the main area of the siphon well on the west side of the diesel generator building, with a backfill depth exceeding 20 meters, a wide coverage area, and a graded aggregate demand of up to approximately 80,000 cubic meters. During construction...

2026-09-08

China officially promotes Hualong One 2.0 Gen-III+ nuclear power technology to the global market

Nine key safety indicators of the Hualong One 2.0 Gen-III+ nuclear power technology have been significantly improved, the number of cabinets in the new-generation Harmony system has been reduced by approximately 40%, and the world's first 8.6-meter-aperture solar thermal collector, Yuanyao-1, can achieve a photoelectric efficiency of 17%... These were the highlights reported by this journalist at the CGN 2026 Sustainable Development Conference held in Shenzhen on September 7. At the conference, CGN officially released the "2025 CGN Sustainable Development Report," and simultaneously launched its global responsibility brand, the "CGN Firefly Plan." As the APEC Economic Leaders' Meeting draws near, Shenzhen is becoming the focus of Asia-Pacific attention. On September 7, CGN, headquartered in Shenzhen, hosted a sustainable development conference themed "Green Energy Illuminating Mountains and Seas, Joining Hands to Create the Future," showcasing China's clean energy development landscape and its latest progress in going global to think tanks, media, and other stakeholders from APEC member economies and countries jointly building the "Belt and Road."

2026-09-07

First Application and Verification of Intelligent Monitoring and Adjustment System for Nuclear Power Plant Personnel Status at "Hualong One" Nuclear Power Plant

On September 4, CGN Engineering, in collaboration with Cangnan Nuclear Power, successfully completed the testing, verification, and on-site data collection of the Intelligent Monitoring and Adjustment System for Nuclear Power Plant Personnel Status at the San'ao Nuclear Power Base. The CGN Engineering departments participating in this testing and verification included CGN Design Institute, the National Key Laboratory of Nuclear Power Safety Technology and Equipment (hereinafter referred to as the National Key Laboratory), CGN Engineering Cangnan Project Department, and Huasheng Technology. This joint test marks an important milestone in the project's transition from technology research and development to engineering application, providing key technical support for the quantitative analysis transformation of human factors safety management in China's nuclear power industry. The system, built upon the personnel fatigue status monitoring principle prototype developed under the Intelligent Nuclear Power strategic special project, has been iteratively improved with continuous support from the Yangjiang Chuangbao High-tech Research Project and the National Key Laboratory research projects, and has now evolved into a mature product suitable for engineering and large-scale application. Previously, relevant functional modules of the system had been deployed and data collected in applications such as human factors verification in the main control room of Yangjiang Nuclear Power Base and simulator training at Taishan Nuclear Power Base. The on-site testing and data collection at the San'ao Nuclear Power Base further verified the system's environmental adaptability and reliability across multiple nuclear power base scenarios, laying a solid foundation for subsequent industry-wide promotion and application.

2026-09-05

Completion of Polar Crane Bridge Lifting for Unit 4 of Zhangzhou Nuclear Power Plant

On September 1, the lifting operation of the polar crane bridge for Unit 4 of the Zhangzhou Nuclear Power Project was successfully completed. The equipment was smoothly positioned under the traction of a 3200-ton crawler crane, with the entire process lasting 2 hours and 5 minutes, creating conditions for subsequent nuclear island plant construction and equipment installation. The polar crane bridge is a core component of the polar crane, installed at the top of the nuclear island plant, and serves as an important structure of the key lifting equipment within the nuclear island plant. Once put into operation, it will provide support for various lifting operations during the installation and operation phases of the nuclear power plant. The total weight of this lifting exceeded 420 tons, with a lifting height of over 100 meters. The project team selected a 3200-ton crawler crane and used a dedicated spreader beam for the operation. In response to challenges such as wind disturbance during high-altitude slewing, limited clearance between the bridge and plant structures, and high load-bearing requirements for the large crawler crane positioning, the construction team conducted simulation rehearsals in advance, optimized lifting condition parameters, verified the stress conditions of the crane, spreader beam, and lifting points, and refined control requirements for key operations.

2026-09-02

World's First 14,000-Ton-Class Ring Crane Rolls Off Production Line, Capable of Supporting Full-Module Lifting for HPR1000 2.0

Recently, XCMG's world's first 14,000-ton-class ring crane officially rolled off the production line. Su Zimeng, President of China Construction Machinery Association; Wang Guohua, Member of the Party Committee and Vice President of Sinopec Engineering (Group) Co., Ltd., as well as Party Secretary and General Manager of its Lifting and Transportation Company; and Yang Dongsheng, Chairman of XCMG Group and XCMG Machinery and Party Secretary, attended the launch ceremony. Xia Dechang, General Manager and Party Secretary of XCMG Crane Machinery Division, announced the successful rollout of the equipment. According to reports, the 14,000-ton-class ring crane was developed to meet the lifting needs of ultra-large and ultra-heavy equipment in major projects such as nuclear power, petrochemical, and marine engineering, with a focus on serving integrated lifting scenarios for large modules. The equipment achieves full-industry-chain...

2026-08-29

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

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

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

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