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Ningde Nuclear Power adopts AR maintenance solution, greatly boosting the efficiency of frontline operation and maintenance personnel

On September 9, at the production command center of Ningde Nuclear Power Plant, staff members only need to put on lightweight AR smart helmets and can obtain the required work information through voice commands. Equipment temperature and vibration data are automatically entered into the system, greatly shortening the time for inspection data entry. This AR smart helmet is an important benchmark project of Ningde Nuclear Power as a pilot enterprise for digital transformation under SASAC. It integrates information such as operation data, equipment drawings, work packages, and training materials, changing the traditional model in which nuclear power personnel rely on paper documents for on-site operations. This AR maintenance platform relies on technologies such as diffractive optical waveguides, 5G real-time transmission, and cross-system data interoperability, and integrates temperature measurement, vibration measurement...

2026-09-18

Shidaowan High-Temperature Gas-Cooled Reactor Demonstration Project Launches Mobilization and Deployment for Second Major Overhaul

On September 9, Shidaowan Nuclear Power Company held a mobilization meeting for the second major overhaul of the High-Temperature Gas-Cooled Reactor Demonstration Project, deploying the overall arrangements and control requirements for the HS-OT002 overhaul. Zhang Yanxu, Chairman and Party Committee Secretary of Shidaowan Nuclear Power Company, delivered a mobilization speech. Chang Chongxi, Overhaul Commander-in-Chief, General Manager, and Deputy Party Committee Secretary, presided over the meeting. Members of the leadership team attended the meeting. Zhang Yanxu stated that the High-Temperature Gas-Cooled Reactor Demonstration Project is a landmark project of China's independent innovation in fourth-generation nuclear power, and its safe and stable operation has drawn attention from relevant departments, the nuclear power industry, and employees of Shidaowan Nuclear Power Company. The demonstration project has operated safely and stably for 473 consecutive days, during which multiple...

2026-09-10

Planned outage at Sweden's Ringhals Unit 4 extended to November 30

The planned maintenance outage at Unit 4 of Sweden's Ringhals nuclear power plant will be extended to November 30 due to the need for additional cleaning work on site. During the planned maintenance outage at Ringhals Unit 3, inspectors discovered rubber residue in parts of the component cooling system. The rubber residue originated from leaking valves within the system. The cleaning work is a preventive measure aimed at avoiding reduced cooling performance or component damage. Sven-Anders Andersson stated that the valve replacement work had originally been scheduled for the coming years, but the rubber degradation exceeded expectations. He said: "We deeply regret the extended outage, but safety and equipment condition remain our top priorities."

2026-09-09

Taishan Nuclear Power Plant Deploys Specialized Underwater Robot for Cold Source Intake to Enhance Water Intake Operation and Maintenance Safety

Recently, at the seawater reservoir of Taishan Nuclear Power Plant, the cold source operation and maintenance team remotely operated a specialized underwater robot to complete an underwater inspection. After entering the water, the robot descended steadily, maintained stable posture at a depth of approximately 10 meters, transmitted clear real-time images, and maintained normal communication links throughout the process, successfully completing the preventive underwater inspection of the seawater reservoir interception net. Underwater inspection of the interception net conducted via the underwater robot. Since its first underwater operation on March 12 this year, the robot has replaced manual labor in dozens of underwater interception net inspections, becoming an important initiative for Taishan Nuclear Power Plant to enhance the intrinsic safety level of cold source water intake operation and maintenance and to advance intelligent operation and maintenance. The cold source interception net is a critical facility ensuring the safety of unit cold source water intake, and its condition and structural gaps directly affect the reliability of cold source water intake. During high-risk periods for the cold source, operation and maintenance personnel are required to conduct underwater inspections of the interception net weekly to confirm facility integrity and operational status.

2026-09-07

2026 maintenance work completed at Russia's Kursk NPP

All 2026 maintenance work at Russia's Kursk NPP has been completed. In the final phase, the plant compressed the maintenance duration by 23.5 days, which is expected to increase electricity generation by approximately 500 million kWh. On August 27, 2026, Unit 4 of Kursk NPP returned to rated power operation after completing scheduled preventive maintenance with modernization upgrades ahead of schedule. The maintenance was completed 20 days ahead of the original plan while ensuring safety and quality. The main maintenance work this cycle was concentrated in the reactor building and turbine hall, including maintenance of multiple forced circulation loop equipment, the reactor emergency cooling system, the blowdown and cooling system, as well as Units 7 and 8...

2026-09-03

Russian personnel to participate in routine maintenance of Unit 1 at Iran's Bushehr Nuclear Power Plant

Rosatom Director General Alexey Likhachev stated during the Eastern Economic Forum that Russian personnel plan to participate in the routine preventive maintenance work at Unit 1 of Iran's Bushehr Nuclear Power Plant, which is scheduled to begin in mid-September. Likhachev said another group of workers has already arrived at the Unit 1 site of the Bushehr Nuclear Power Plant. Nuclear fuel for replacing some fuel assemblies has also been delivered to Iran. In addition to participating in the construction of Units 2 and 3 at the Bushehr Nuclear Power Plant, Russian personnel will also provide services for the operating unit. According to him, 45 Rosatom employees are currently working at the Bushehr Nuclear Power Plant, with another...

2026-09-03

Qinshan Nuclear Power Completes Overhaul Validation of Grille Cleaning Robotic Arm

The grille cleaning robotic arm, an integrated system of UAV-based intelligent inspection and robotic arm automatic cleaning independently developed by the Mechanical Team of the Fourth Maintenance Division at Qinshan Nuclear Power, recently completed on-site validation during the Unit 2 312 overhaul at Qinshan Phase II. Designed for seawater system intake grille cleaning scenarios, this equipment transforms the original manual operation requiring entry into deep wells into an unmanned operation conducted under ground-based remote monitoring. The intake grille serves as a critical barrier for the cooling water system of a nuclear power plant, and its unobstructed condition is directly related to the stable operation of the unit. In traditional cleaning methods, workers were required to enter narrow shafts more than twenty meters underground to perform inspection and cleaning in confined spaces, which involved high labor intensity, low efficiency, and safety risks such as falls from height...

2026-09-03

Russia's Kola NPP Completes 2026 Maintenance Program

Unit 2 of Russia's Kola Nuclear Power Plant was reconnected to the grid at 15:58 Moscow time on August 31, 2026, following the completion of scheduled preventive maintenance and partial modernization. This marked the conclusion of the plant's 2026 maintenance program. It was also the first time since the plant's commissioning that the annual maintenance plan was completed during the summer season. The maintenance of Unit 2 lasted 29.5 days. During this period, plant personnel and contractors performed medium repairs and related maintenance on key equipment, covering multiple areas including the reactor building, turbine hall, and electrical systems. In the reactor building, the scope of work included major repairs of some steam generators, main circulation pumps, and primary circuit piping, as well as nuclear fuel reloading, reactor assembly disassembly, and in-vessel component maintenance. In the turbine hall, workers completed repairs of the turbine-generator unit, circulation pumps, low-pressure heaters, and moisture separator reheaters. The electrical scope included repairs of transformers and diesel generators.

2026-09-02

Unit 1 of Russia's Kalinin NPP completes scheduled maintenance ahead of schedule

Unit 1 of Russia's Kalinin Nuclear Power Plant has been restored to rated power operation after completing equipment modernization and planned major overhaul. The unit was connected to the grid on August 27, 2026, with maintenance work completed two days ahead of the original schedule. Kalinin NPP is a nuclear power plant under Rosenergoatom, located in Udomlya, Tver Oblast, Russia. During this maintenance period, plant personnel and experts from Atomenergoremont completed nuclear fuel reloading, preventive maintenance of the reactor plant and turbine-generator unit, metal condition inspection of major equipment, and diagnostic testing of heat exchange tubes in 2 of the 4 steam generators, among other tasks...

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

Unit 5 of Russia's Novovoronezh Nuclear Power Plant Enters Scheduled Maintenance

At 4:22 a.m. local time on August 28, Unit 5 of Russia's Novovoronezh Nuclear Power Plant was disconnected from the grid in accordance with the annual plan, entering scheduled preventive maintenance. The maintenance period is expected to last 35 days, after which the unit will be reconnected to the grid. Novovoronezh Nuclear Power Plant is a branch of Rosenergoatom, the Russian nuclear power plant operator, which is part of the Rosatom state corporation. During the maintenance period, the plant and the contractor Atomenergoremont will carry out minor, medium, and major repairs on main and auxiliary equipment, as well as implement modernization of some equipment. Key tasks of this maintenance include cleaning the turbine generator...

2026-08-29

New tooling at Russia's Rostov NPP cuts filter maintenance time to two days

On August 28, local time, Russia's Rostov Nuclear Power Plant announced that its engineering and technical personnel have developed and put into operation a set of specialized tooling for the maintenance of filters in the ball-type pre-filter system (SShO) of the turbine hall, significantly reducing the time required for equipment maintenance preparation and overhaul. Rostov NPP is part of Rosenergoatom, the electric power division of Russia's State Atomic Energy Corporation (Rosatom). The filters targeted by this improvement weigh over one ton each and require crane assistance for movement, but the existing fixed cranes on site cannot directly cover the equipment locations. To address this issue, the maintenance preparation and implementation department...

2026-08-30

Tianwan Nuclear Power Advances AI-Empowered Intelligent Upgrade of Maintenance Operations

In recent years, the maintenance domain of Tianwan Nuclear Power has relied on platforms such as Hezhi·Longling to address pain points in efficiency, quality, and management across the entire maintenance business chain, promoting the integration of artificial intelligence with nuclear power maintenance scenarios. To date, applications including personnel profiling, work order generation, compliance inspection, and auxiliary generation of electric actuator maintenance plans have achieved phased results, while projects such as the intelligent lifting command platform and marine tunnel cleaning robot are also under development. In personnel management, Tianwan Nuclear Power has established a seven-dimensional personnel capability scoring model, setting differentiated evaluation indicators for different maintenance positions to form position-based, data-driven personnel capability profiles. The system can integrate historical data, support multi-period data retention and trend comparison, and display personnel capability distribution through radar charts, bar charts, and trend graphs. After batch data import, the backend automatically completes normalization calculation, multi-dimensional scoring, and ranking, generating materials that include overall overview, position comparison, special analysis of responsibility performance, and improvement suggestions, providing a basis for training resource allocation, position matching, and differentiated management. To address the issues of time-consuming maintenance work order preparation and reliance on manual experience, the relevant team has developed an intelligent work order preparation assistant based on the Longhuitong intelligent agent platform, forming an application solution of "1 intelligent agent, 1 Skill capability, and 7 categories of professional knowledge bases." The system integrates the historical work order library, maintenance procedure library, equipment ledger library, risk and safety measure library, spare parts and tools library, personnel qualification library, and management procedure library. It can dynamically generate work package catalogs based on historical operation data and procedural requirements, automatically fill in work order business content, and output downloadable Excel work package drafts that can interface with the EPM system. In terms of maintenance quality control, Tianwan Nuclear Power has developed an AI intelligent agent for maintenance compliance inspection. Based on large language models and RAG retrieval-augmented generation technology, this agent can batch receive maintenance procedures, preventive maintenance program lists, and maintenance completion reports, automatically parse document content, and conduct semantic comparison. The system can check item by item the coverage of maintenance procedure implementation steps by the program, while also identifying issues in completion reports such as missing items, omissions, data anomalies, missing signatures, and logical contradictions. The structured inspection reports it outputs can be traced back to specific procedure steps or report entries, and provide rectification suggestions. Intelligent assistance is also being introduced into maintenance of key equipment. Given the large number of electric actuators in nuclear power plants, their complex models, and high maintenance requirements, Tianwan Nuclear Power has developed an auxiliary generation system for electric actuator maintenance plans. After engineering personnel input equipment information and fault descriptions, the system can call upon the electric actuator maintenance knowledge base, historical plans, and equipment data to automatically generate a draft maintenance plan, covering cause analysis, maintenance steps, technical key points, spare parts and tool preparation, and safety precautions. Verified by maintenance engineers, the relevant plans have basically met the conditions for on-site application and can save preparation time for emergency repairs. In addition to applications already deployed, Tianwan Nuclear Power is also advancing the construction of an intelligent lifting command platform. Given the high professionalism and numerous control links involved in crane lifting operations at nuclear power plants, the platform is planned to support both web and API interface usage, and to manage processes such as development, training, and online monitoring through AI models. According to the design, the platform can assist in lifting planning after inputting lifting object parameters and site conditions, recommending equipment and lifting point positions, and alerting to risks such as overload and collision. It can also generate lifting plans based on cargo information, provide handling steps, required materials, and contact person information for emergency situations, and be used for training question bank generation, operation record analysis, and rectification report output. Tianwan Nuclear Power stated that it will continue to expand AI application scenarios in the maintenance domain based on actual production needs, promote the digitalization and intelligent upgrade of maintenance operations, and strengthen network security management while advancing intelligent applications, providing support for the safe and stable operation of the units.

2026-08-28

Unit 3 of Russia's Kursk Nuclear Power Plant resumes operation after short-term maintenance

Rosatom reported on August 27 that Unit 3 of the Kursk Nuclear Power Plant has resumed operation after completing short-term unscheduled maintenance. Rosatom stated that Unit 4 of the Kursk Nuclear Power Plant remains under planned preventive maintenance. The announcement did not disclose the specific reasons for or the duration of the maintenance on Unit 3. Meanwhile, construction of new units at the Kursk Nuclear Power Plant continues to progress. The new units employ modern VVER-TOI reactor technology, with the first unit already commissioned and generating electricity...

2026-08-28

Korea's Shin-Kori Unit 1 Reaches Full Power After Scheduled Maintenance

Korea Hydro & Nuclear Power (KHNP) announced that Shin-Kori Unit 1 reached 100% rated power at approximately 3:07 a.m. on the 26th. The unit is a 1,400 MW-class pressurized water reactor. Shin-Kori Unit 1 began its sixth scheduled preventive maintenance on July 2 and resumed power generation on July 23. During the maintenance period, the unit underwent statutory inspections as required by Korea's Nuclear Safety Act. Shin-Kori nuclear power plant stated that this maintenance included nuclear fuel replacement, as well as maintenance and inspection of major equipment and facilities to enhance the safety and reliability of the power generation facility....

2026-08-26