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Russia's Kalinin Nuclear Power Plant Unit 2 begins scheduled comprehensive overhaul, equipment upgrades to be carried out

On September 19, 2026, Kalinin Nuclear Power Plant Unit 2 officially entered a period of scheduled maintenance according to plan. The unit belongs to Rosenergoatom, a branch of the Electric Power Division of Rosatom State Atomic Energy Corporation. The maintenance will involve nuclear fuel replacement, routine inspection and repair of the reactor and turbine generator set, as well as a comprehensive assessment of the technical condition of the metal materials of core equipment. During the maintenance period, technical personnel from the Kalinin Nuclear Power Plant will work closely with experts from Atomenergoremont Company. While carrying out routine maintenance, they will also implement nine upgrade and modification projects on some key nodes and process systems of Unit 2. The entire overhaul process requires...

2026-09-20

Unit 2 of Japan's Shimane Nuclear Power Plant Completes Periodic Inspection and Resumes Commercial Operation After About 7 Months

The Chugoku Electric Power Company (Japanese: 中国電力株式会社), a large integrated electric power company responsible for supplying electricity to 5 prefectures in the Chugoku region of western Honshu, Japan, announced on September 16 that Unit 2 of the Shimane Nuclear Power Plant has successfully completed the periodic inspection that began in February this year and officially resumed commercial operation on the 16th, returning to power supply after about 7 months. According to Chugoku Electric Power's estimate, in the overall power source mix, nuclear power generation will account for about 15% of the company's total power generation for this fiscal year, and this level of generation is expected to meet about 60% of the electricity demand of the two San'in prefectures. In addition, since Unit 2 of the Shimane Nuclear Power Plant has reached 37 years since it began commercial operation, Chugoku Electric Power also collected, during this periodic inspection, data used as the basis for assessing the "special inspection" required for future extended operation beyond the standard service period (exceeding the 40-year operating limit).

2026-09-17

Unit 2 of the Czech Temelín Nuclear Power Plant shut down due to a control system fault

Unit 2 of the Temelín Nuclear Power Plant in the south of the Czech Republic has been taken out of service due to a fault in the control system of its non-nuclear portion. Marek Sviták, spokesperson for the Temelín Nuclear Power Plant, said that power engineers shut down Unit 2 of the Temelín Nuclear Power Plant that day because of a fault in the control system of the non-nuclear portion. After the necessary inspection and maintenance work is completed, the unit is expected to resume operation and return to power generation on Thursday of this week. At the same time, Unit 1 of the Temelín Nuclear Power Plant is currently operating normally at full power and has not been affected. In addition to the Temelín Nuclear Power Plant, the...

2026-09-17

Slovenské elektrárne launches extended outage of Unit 2 at Mochovce

Slovenské elektrárne will disconnect the last turbogenerator from the grid at 3:00 a.m. on Saturday, September 12, officially launching the extended outage of Unit 2 at the Mochovce Nuclear Power Plant. This will be the last scheduled outage of a Slovak nuclear unit this year. Over the coming weeks, nuclear professionals will carry out an extensive program of work covering inspections, repairs, and upgrades, aimed at ensuring the long-term safe and reliable operation of the nuclear power plant. One of the most critical items of this outage is a detailed inspection of the reactor pressure vessel. This work requires the complete unloading of nuclear fuel from the reactor...

2026-09-16

Core Makeup Tank for Xudabao Nuclear Power Plant Unit 2 Arrives at Project Site

On September 14, the core makeup tank for Xudabao Nuclear Power Plant Unit 2 arrived at the Xudabao Nuclear Power Project site. The core makeup tank is an important passive engineered safety feature of the reactor coolant system and a major large-scale equipment on the construction path of the reactor building. During the manufacturing of this equipment, Liaoning Nuclear Power cooperated with China Nuclear Power Engineering Co., Ltd. by stationing personnel at the factory for full-process coordination, implementing dynamic control of equipment quality and manufacturing progress through "daily tracking and weekly assessment," and ensuring the smooth completion and on-schedule delivery of the core makeup tank for Unit 2 to the project site through measures such as optimizing production processes and implementing continuous operations, thus creating favorable conditions for the orderly commencement of main construction of the reactor building. Subsequently, the Equipment Procurement Department of Liaoning Nuclear Power...

2026-09-16

Hanbit Unit 2 in South Korea Shut Down as Operating License Expires, Four Nuclear Units Temporarily Off the Grid

On September 11, 2026, Hanbit Nuclear Power Plant Unit 2 in Yeonggwang County, South Jeolla Province, South Korea, stopped generating electricity as its 40-year operating license expired. Korea Hydro & Nuclear Power (KHNP) said the same day that the generator of Hanbit Unit 2 was disconnected from the grid at 10 a.m., after which it entered a phase of routine inspection and planned preventive maintenance. Hanbit Unit 2 began commercial operation on September 12, 1986. Previously, Hanbit Unit 1 had been shut down in December 2025 for the same reason. With this, about 1.9 gigawatts of installed capacity from Hanbit Units 1 and 2 has temporarily withdrawn from the grid. In addition to Kori Units 3 and 4, which have already been shut down due to license expiration and are awaiting subsequent review decisions...

2026-09-11

South Korea's Hanbit Nuclear Power Plant Unit 2 Shut Down Upon Expiration of Design Lifespan

South Korea's Hanbit Nuclear Power Plant Unit 2 will cease operation upon the expiration of its 40-year design lifespan. Following the shutdown of this unit, two of the six units at the Hanbit plant will have been taken offline due to reaching the end of their design lifespans. Unit 2 of the Hanbit plant received its operating license on September 12, 1986, and commenced commercial operation on June 10, 1987. Based on a 40-year design lifespan, the unit's operating license remains valid until September 11, 2026. The operator plans to conduct periodic inspections and planned preventive maintenance after the unit is shut down. In accordance with relevant regulations, once a unit reaches the end of its design lifespan, it may not resume operation until its application for continued operation is approved, and it must undergo legally required inspections and maintenance, and...

2026-09-09

Armenian NPP Unit 2 Reconnected to Grid After Overhaul

September 3 news, Armenian Minister of Territorial Administration and Infrastructure David Khudatyan stated that Unit 2 of the Armenian Nuclear Power Plant has resumed operation and been connected to the country's unified power grid after completing a five-month planned overhaul. Khudatyan said that on September 1, 2026, Unit 2 of the Armenian Nuclear Power Plant was restarted after scheduled maintenance and connected to the national unified power grid. Currently, the unit is operating normally, with power output gradually increasing in accordance with established process requirements. The planned overhaul began on April 1 and lasted 153 days as scheduled. During the overhaul, approximately 20 measures were implemented at the plant to enhance unit reliability, safety, and operational efficiency...

2026-09-08

Tottori Prefecture nuclear safety advisory council approves safety of MOX fuel plan for Shimane Unit 2

The Tottori Prefecture Nuclear Safety Advisory Council held a meeting in Yonago City on September 6 and submitted an opinion on the MOX fuel power generation project planned by Chugoku Electric Power Co. for Unit 2 of the Shimane Nuclear Power Station. The opinion stated that, based on explanations provided by Chugoku Electric Power Co. and the Japanese government, the safety of the project can be ensured. The Shimane Nuclear Power Station is located in Matsue City, Shimane Prefecture. Chugoku Electric Power Co. plans to use mixed oxide fuel, or MOX fuel, consisting of uranium and plutonium, in Unit 2. This type of power generation is also referred to as plutonium thermal power generation in Japan. The opinion also...

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

Release of the Main Piping Welding Control Point for Unit 2 of Xudabao Nuclear Power Plant

Recently, the Northeast Regional Office of Nuclear and Radiation Safety Supervision under the Ministry of Ecology and Environment (hereinafter referred to as the Northeast Office) organized an inspection team to conduct an inspection at the main piping welding control point for Unit 2 of Xudabao Nuclear Power Plant. Experts from the East China Regional Office of Nuclear and Radiation Safety Supervision, the South China Regional Office of Nuclear and Radiation Safety Supervision, the Nuclear and Radiation Safety Center, the China Machinery Productivity Promotion Center, the Shanghai Nuclear Safety Review Center, the Suzhou Nuclear Safety Center, and other organizations participated in the inspection. As a critical component of the reactor coolant pressure boundary, the welding quality of the main piping is directly related to the construction quality and operational safety of the nuclear power unit. In strict accordance with relevant procedural requirements, the inspection team conducted a comprehensive inspection covering the implementation of the operating organization's quality assurance program, quality control of important items and activities, and preparation for main piping welding through on-site inspections, document reviews, and personnel interviews...

2026-09-05

Japan's Onagawa Nuclear Power Station Unit 2 Plans to Replace Hydrogen Concentration Monitoring Equipment

Tohoku Electric Power has consulted with Miyagi Prefecture, Ishinomaki City, and Onagawa Town in advance regarding a change to the method of monitoring hydrogen concentration inside the containment vessel under severe accident conditions at Unit 2 of the Onagawa Nuclear Power Station. The company plans to submit an application to amend the reactor installation license to the Nuclear Regulation Authority (NRA) of Japan on the 2nd. Unit 2 of the Onagawa Nuclear Power Station is located in Onagawa Town and Ishinomaki City, Miyagi Prefecture. Tohoku Electric Power previously installed a total of four hydrogen concentration detectors inside and outside the reactor containment vessel of this unit, intended to monitor changes in hydrogen concentration within the containment vessel in the event of a severe accident. In 2025, some of these detectors experienced malfunctions. In the same year...

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

Welding of main circulation pipeline completed for Unit 2 of Turkey's Akkuyu NPP

On August 27, welding of the main circulation pipeline was completed for Unit 2 of Turkey's Akkuyu Nuclear Power Plant. The pipeline connects the reactor, steam generators, and main circulation pumps, and is one of the key components forming the primary circuit system of the reactor facility. The welding work lasted 73 days and involved welding 32 pipe joints. Engineering technicians, welders, fitters, pipe cutters, non-destructive testing personnel, heat treatment personnel, and quality inspection personnel participated in the relevant operations. During construction, each process step proceeded according to the established technological workflow, and welded joints had to pass inspection before moving to the next stage. According to reports, all welded joints underwent high-temperature heat treatment to relieve internal stress in the metal and ensure compliance with design performance requirements.

2026-08-28

Japan Extends Deadline for Anti-Terrorism Facility Construction at Onagawa Nuclear Power Plant Unit 2

The Nuclear Regulation Authority (NRA) of Japan has officially decided to revise relevant regulations to extend the deadline for installing anti-terrorism facilities, specifically "facilities for responding to specified severe accidents," at nuclear power plants. Under the new rules, the deadline will be adjusted from "within five years after the construction plan is approved" to "within five years after the start of commercial operation." The revised regulations are expected to take effect in September. This change will affect Tohoku Electric Power's Onagawa Nuclear Power Plant Unit 2. The unit, which had faced the possibility of shutdown by December 2026 due to difficulties in completing the required facilities by then, will now be able to continue operating beyond that date. Tohoku Electric Power...

2026-08-28