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Unit 4 of CGN's Zhejiang Sanao Nuclear Power Project officially commences construction

Recently, the first concrete pouring for the nuclear island of Unit 4 of the Sanao Nuclear Power Project in Wenzhou, Zhejiang Province officially began, marking the full commencement of the unit's main works and the official entry of the project's Phase II into the stage of large-scale construction. As the first Hualong One project in the Yangtze River Delta region and the country's first nuclear power project to introduce private capital participation, the continued advancement of the Sanao Nuclear Power Project has set an important example for the high-quality development of clean energy in China. Located in Wenzhou, Zhejiang Province, the Sanao Nuclear Power Project is the first Hualong One project in the Yangtze River Delta region and the country's first nuclear power project to introduce private capital participation. Unit 4, which commenced construction this time, is part of Phase II of the Sanao Nuclear Power Project and is China General Nuclear Power Group...

2026-11-11

Construction of Nuclear Island of China's First Commercial High-Temperature Gas-Cooled Reactor Nuclear Power Unit Begins

Recently, China's first commercial nuclear power unit adopting the HTR-PM600S reactor facility officially reached a key construction milestone at the Xuwei Nuclear Power Plant in Lianyungang, Jiangsu Province, with the first concrete pour for its nuclear island foundation successfully completed. The project belongs to China's independently developed High-Temperature Gas-Cooled Reactor (HTGR) series, known by the brand name Chilong One, marking a substantive step forward in the large-scale commercial application of China's fourth-generation nuclear power technology. Chilong One was jointly developed by China National Nuclear Corporation (CNNC) and Tsinghua University, with fully independent intellectual property rights. The HTR-PM600S project unit...

2026-11-10

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

First Concrete Pour Completed for Nuclear Island of Unit 5 at China's Haiyang Nuclear Power Plant

Recently, the first concrete pour (FCD) for the nuclear island of Haiyang Nuclear Power Unit 5 was completed, with a cumulative concrete placement of 7,008 cubic meters, marking that the main works of the nuclear island have fully entered the construction phase and laying the foundation for the subsequent construction of Phase III of the Haiyang Nuclear Power Project. The nuclear island base slab of this unit is a raft foundation shared by Zone 5 of the reactor building, auxiliary building and annex building, adopting a cast-in-place reinforced concrete structure. The pouring operation was carried out in four stages and organized as a one-time monolithic pour. Shandong Nuclear Power, together with the supervision, general contracting and construction units, established a dedicated organizational structure to implement safety and quality management throughout the pouring process. The project team, drawing on experience feedback from Phase II, optimized construction organization and process interfaces to ensure continuous pouring of mass concrete.

2026-11-04

The first concrete pouring for the nuclear island of Unit 2 of State Power Investment Corporation (SPIC) Guangxi Bailong Nuclear Power Project was successfully completed.

The first concrete pouring for the nuclear island of Unit 2 of SPIC Guangxi Bailong Nuclear Power Project was completed at 16:07 on September 30, after 69 hours and 40 minutes of continuous work. A total of 6,732.5 cubic meters of concrete was used for this pouring, marking another important milestone for the project after the FCD achievement for the nuclear island of Unit 1. Phase I of the Bailong Nuclear Power Project plans to build two CAP1000 nuclear power units. These two units adopt independently designed and domestically manufactured Generation III passive nuclear power technology, with each unit having a capacity of up to 1.25 million kilowatts. At present, Unit 1 has entered the construction and installation stage, and the steel containment vessel bottom head, CA20, CV1R, CA01...

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

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

Zhejiang Jinqimen Nuclear Power Unit 1 Pressurizer Relief Tank Successfully Hoisted into Place

On August 30, the pressurizer relief tank, a major nuclear island equipment item of Unit 1 at Zhejiang Jinqimen Nuclear Power Plant, contracted by China Nuclear Industry Fifth Construction Co., Ltd. (CNF), was successfully hoisted into place. The entire hoisting process was smooth and orderly, with overall safety and quality under control. This hoisting has laid a solid foundation for the subsequent installation of main nuclear island equipment and the construction of the primary loop system. The pressurizer relief tank is an important auxiliary equipment of the reactor coolant system in a nuclear power plant. Its main function is to collect and condense the high-temperature and high-pressure steam discharged from the pressurizer safety valves, ensuring the safe and stable operation of the reactor system. The relief tank hoisted this time is pre-installed equipment in the nuclear island. The main body of the equipment is heavy in weight and large in size, with limited hoisting workspace. After being hoisted into place, it needs to be placed in the nuclear island building for a long period, and subsequent construction will be constrained by space, making it necessary to introduce the equipment precisely within the civil construction window period.

2026-09-02

Qinshan Nuclear Power Plant Unit 2 Outage 218 Officially Commences

At 2:20 AM on September 1, Unit 2 of Qinshan Phase II was disconnected from the East China Power Grid, marking the official commencement of Outage 218. This outage is a Category C overhaul for Unit 2 of Qinshan Phase II. In addition to the routine annual overhaul items such as reactor coolant system head removal and installation, fuel handling, SG eddy current inspection and flushing, it also includes important special tasks such as generator rotor removal, insertion and inspection, diesel generator excitation system renovation, PSR weakness anti-boron dilution modification, reactor coolant system automatic makeup and residual heat removal eddy current detection function, and nuclear island low-voltage switchgear renovation. The planned items for this outage total 6,119: including 3,764 preventive items, 171 strategic maintenance items, 789 periodic tests, 133 modification work orders, and 1,262 other types of work.

2026-09-01

CA01 Module of Unit 1 at Guangxi Bailong Nuclear Power Plant Successfully Hoisted into Position in the Nuclear Island

On August 29, the CA01 module of Unit 1 at the Bailong Nuclear Power Plant of SPIC Guangxi Nuclear Power was precisely positioned, marking a new phase of parallel civil construction and installation in the nuclear island. ▲On August 29, the hoisting operation of the CA01 module of Unit 1 at the Guangxi Bailong Nuclear Power Plant of SPIC was proceeding in an orderly manner. The CA01 module is located in the reactor building of the nuclear island and serves as the installation room for main equipment such as the reactor pressure vessel, steam generators, and pressurizer. The module is T-shaped in overall form, with external dimensions of 28 meters in length, 29 meters in width, and 24 meters in height. It consists of 47 sub-modules, with a total lifting weight of approximately 1,167 tons, making it the largest and heaviest structural module in the nuclear island. The hoisting operation commenced at 8:07 a.m. and, after a series of maneuvers including lifting, hovering, slewing, lowering, and adjustment, was successfully positioned at 12:58 p.m., with the entire process being safe, controllable, stable, and orderly.

2026-08-31

Steel Dome of Unit 1 at Liaoning Xudabao Nuclear Power Plant Hoisted into Place

On August 28, the steel dome of the nuclear island of Unit 1 at Liaoning Xudabao Nuclear Power Plant, invested and controlled by China National Nuclear Corporation (CNNC)'s China National Nuclear Power, was hoisted into place, marking that the large steel structure module construction of the unit has entered its final stage and laying a solid foundation for achieving the milestone of structural completion of the nuclear island buildings. As the core load-bearing structure of the nuclear island, the steel dome sits atop the steel-plate concrete structure, bearing all loads from the passive containment cooling water storage tank and the structures above. It serves as a critical barrier safeguarding the structural integrity and sealing reliability of the reactor building. The dome is conical in shape, composed of radial main beams, ring beams, steel cladding panels, and a bottom steel platform, with a diameter of approximately 41 meters, a height of 11 meters, and a total hoisting weight of nearly 1,000 tons...

2026-08-28

Lufeng Nuclear Power Unit 1 Nuclear Island Installation and High-Quality Cold Test Sand Table Exercise Successfully Concluded

From August 18 to August 21, 2026, the China Nuclear Energy Association (hereinafter referred to as the Association) organized relevant experts to successfully carry out the sand table exercise for the nuclear island installation and high-quality cold test of Lufeng Nuclear Power Unit 1. The sand table exercise was led by Hu Guofeng, former Director of Shanghai Nuclear Engineering Research and Design Institute Co., Ltd. and Deputy Director of the Science, Technology and Development Expert Committee, with Li Jingxi, former Director of the South China Nuclear and Radiation Safety Supervision Station of the Ministry of Ecology and Environment, Li Qibin, former Chairman of China Nuclear Industry 23 Construction Co., Ltd., Zeng Hao, former Chairman of CNNC Maintenance Co., Ltd., and Wang Mingliang, former Deputy General Manager of China Nuclear Industry Fifth Construction Co., Ltd., serving as advisors. A total of 24 external experts participated...

2026-08-28

Main Piping and Surge Lines for Unit 2 of Xudabao Nuclear Power Plant Arrived at Site

On August 22, the main piping and surge lines for Unit 2 of Xudabao Nuclear Power Plant were successfully delivered to the site, laying a solid foundation for the commencement of main piping welding, a Level-1 milestone. The main piping serves as the aorta of the reactor coolant system. Together with the reactor pressure vessel, steam generators, and reactor coolant pumps, it forms a closed loop and pressure boundary. It is not only the core pipeline carrying the circulation and transfer of the reactor coolant but also a critical safety barrier for the nuclear island, making it an essential component of the nuclear island's core equipment. To ensure high-quality and on-time delivery of the equipment, Liaoning Nuclear Power took the lead in coordinating with the general contractor, procurement party, and equipment manufacturers, establishing a three-tier coordination mechanism of "daily reports + weekly meetings + monthly executive meetings" to fully streamline the information chain. Through measures such as optimizing production processes, mobilizing superior production capacity, and implementing continuous operations, all tasks were completed on schedule, ensuring the equipment was shipped and delivered to the site as planned.

2026-08-26

Steel Containment Vessel Ring 1 of Unit 1 at Guangxi Bailong Nuclear Power Plant Successfully Hoisted into Place

At 11:38 on August 16, after 4 hours and 01 minutes of continuous and stable operation, the steel containment vessel ring 1 (CV1R) of the nuclear island of Unit 1 at Guangxi Bailong Nuclear Power Plant was successfully hoisted into place. This hoisting marks another successful installation of a key module following the CVBH and CA20 modules for Unit 1 of Bailong Nuclear Power Plant, signifying a critical breakthrough in the construction of the main structure of the nuclear island of Unit 1. The steel containment vessel consists of five major modules: the bottom head, the intermediate cylindrical shell (rings 1 to 3), and the top head, serving as the third physical safety barrier of the reactor. The CV1R hoisted this time is the core component with the largest volume and heaviest weight among the five major components of the steel containment vessel, measuring approximately 15.5 meters in height and up to 39.6 meters in maximum inner diameter, integrating equipment...

2026-08-17

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