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First Backup Emergency Diesel Generator of Hualong One Officially Available at Sanao Nuclear Power Unit 2

On October 2, the first backup emergency diesel generator (9LHW) of Hualong One completed the replacement grid connection test at Sanao Nuclear Power Unit 2 and was officially put into service. The equipment can replace any one of the original 12 emergency diesel generators (EDGs) in Phase I and Phase II projects, significantly improving the redundancy, reliability, and maintenance flexibility of the plant's emergency power supply. Sanao Nuclear Power Phase I and Phase II each have 3 emergency busbars, with one EDG configured for each busbar. However, due to the absence of cross-power supply for loads, the preventive maintenance windows of the original units were concentrated, affecting the overhaul schedule. Since 2021, Cangnan Nuclear Power has promoted the project of adding backup diesel generators, improving from the design source, building a new backup emergency diesel generator building (BDD), and constructing corridors and cables connected to each unit...

2026-10-03

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

Nuclear Power Plant Under Shuttered Lights: Exploring the Qidong "Hualong One" Intelligent Manufacturing Base

Recently, reporters followed the "Green Nuclear Energy" nuclear power science popularization cooperation platform to participate in the "Hualong One Independent Innovation Journey" media tour, gaining an in-depth look at this intelligent manufacturing factory that carries China's nuclear power ambitions and wisdom. From discussing a problem late into the night, to the production line truly running, to the complete closed loop of the data chain, the story behind each achievement reflects China's nuclear power innovation determination to go from catching up to running in parallel and even leading, and also provides a valuable Chinese solution for intelligent manufacturing in the global nuclear energy field. Inside the "Heneng Intelligent Manufacturing" base at Lusi Port in Qidong City, Jiangsu Province, even as night falls and the lights go out, the production workshop still maintains high-speed operation. Golden welding sparks keep flying, and robotic arms...

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

Main Construction of Unit 2 at CGN's Shandong Zhaoyuan Nuclear Power Project Commences

On the morning of September 5, the first concrete pour for the nuclear island of Unit 2 at CGN's Shandong Zhaoyuan Nuclear Power Project was initiated, marking the official commencement of main construction for this unit and the entry of the project's Phase I into full-scale construction. According to reports, the concrete pouring for Unit 2, which commenced construction this time, totals approximately 8,800 cubic meters, equivalent to the volume of 3.5 standard swimming pools. The pour is divided into 7 points and will be completed in a single continuous operation, with an estimated total duration of about 60 hours. The main construction of Unit 1 of this project commenced on November 18, 2025. Yu Xiangdong, General Commander of CGN's Shandong Zhaoyuan Nuclear Power Project, stated that currently, the adjacent Unit 1's nuclear island reactor building has completed the hoisting of 4 steel liner modules, with the steel liner constructed to elevation 29.72 meters. Construction of the conventional island turbine foundation, turbine frame, corridors, and circulating water pump pits is progressing concurrently, while cooling tower rebar cage installation and concrete pouring are underway. Construction safety and quality remain under control, with all work progressing in an orderly manner.

2026-09-05

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