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New Decommissioning Plan for Fukushima Daiichi: Priority on Internal Investigation of Unit 3 Before Fuel Debris Retrieval

The Nuclear Damage Compensation and Decommissioning Facilitation Corporation of Japan released on August 6 an outline of the 2026 edition of the "Decommissioning Strategic Plan," proposing technical approaches for the decommissioning of Tokyo Electric Power Company's Fukushima Daiichi Nuclear Power Station. The plan highlights that, for the large-scale retrieval of melted fuel debris at Unit 3, expected to commence in or after fiscal year 2037, priority should currently be given to internal investigations of the reactor building to provide a more reliable basis for subsequent engineering plans. The plan states that the fuel debris retrieval method being studied by TEPCO still requires further improvement in certainty, with the key prerequisite being an understanding of the actual internal conditions of the reactor. Due to the high radiation levels of the water inside the unit following the accident...

2026-08-07

Approximately 13,000 liters of water found in Unit 3 of Hamaoka Nuclear Power Plant; Chubu Electric continues investigation into data falsification

Japan's Chubu Electric Power announced on August 4 that water accumulation totaling approximately 13,000 liters was found in the turbine building and related areas of Unit 3 at the Hamaoka Nuclear Power Plant. The company stated that the accumulated water contains no radioactive substances and is currently investigating the specific cause. According to Chubu Electric Power, at around 11:00 a.m. on the 4th, a worker from a partner company discovered approximately 5 liters of water in a passageway on the northwest side of the first basement floor of the turbine building adjacent to the reactor building of Unit 3. Subsequently, company personnel continued on-site inspections and confirmed at around 3:00 p.m. the same day that approximately 13,000...

2026-08-05

Pre-Startup Review (PSUR) for Sanmen Nuclear Power Plant Unit 3 Completed

From July 15 to 30, the Pre-Startup Review (PSUR) for Sanmen Nuclear Power Plant Unit 3 was conducted at the Sanmen nuclear power plant site. The review was organized by the Shanghai Office of the World Association of Nuclear Operators (WANO), and the review team consisted of 21 experts from the WANO Shanghai Office, WANO Tokyo Center, and Korea Hydro & Nuclear Power Co., Ltd. Leaders of Sanmen Nuclear Power Company and personnel from relevant fields participated in this activity. The review aimed to systematically and comprehensively evaluate the readiness of Unit 3 prior to startup, identify areas for improvement, analyze causes, and propose improvement recommendations. Through site inspections, work observations, document package reviews, and personnel interviews, the WANO review team conducted a thorough assessment of...

2026-08-03

Unit 3 of the Huaneng Changjiang Nuclear Power Phase II project—Hainan Province's first "Hualong One" nuclear power project—has been connected to the grid and is generating electricity

On August 1, Unit 3 of the Huaneng Changjiang Nuclear Power Phase II Project, the first large-scale pressurized water reactor nuclear power project under controlling construction by China Huaneng Group Co., Ltd. and the first "Hualong One" nuclear power project in Hainan Province, was connected to the grid, generating Huaneng's first kilowatt-hour of pressurized water reactor nuclear power. This marks that the unit has officially gained the capability to transmit power to the grid, taking a key step toward the goal of commercial operation. The project plans to build two 1.2-million-kilowatt nuclear power units, equipped with China's independently developed third-generation pressurized water reactor nuclear power technology, the "Hualong One." It vigorously promotes the independent design of nuclear power and the localization of equipment manufacturing, and adopts a safety design concept combining active and passive systems, which can significantly improve the reliability and safety of the nuclear power plant. ...

2026-08-03

Hungary's Paks Nuclear Power Plant Faces Full Shutdown Due to Record Low Danube Water Level

Affected by persistent drought and high temperatures, the water level of the Danube River at the Budapest section dropped to 23 cm (fixed datum reading, a record low), restricting cooling water intake at the Paks Nuclear Power Plant. Starting Wednesday, July 29, Unit 3 was the first to be shut down; the operator, MVM Paks Nuclear Power Plant Ltd, subsequently stated on its official website that all four units would inevitably be disconnected within the next 24 to 72 hours, with power generation coming to a complete halt. MVM explained that the existing water volume of the Danube is still sufficient to cool the reactors, but the intake pumps can no longer draw water because the riverbed is exposed and the pump inlets are too far from the water surface—an equipment failure rather than an absolute shortfall in cooling water volume. To this end, the Hungarian side deployed 4 pumping barges and 2 floating cranes near the plant as an emergency measure, but with water levels expected to continue falling, a preventive full shutdown remains unavoidable.

2026-07-31

Restart of Tomari Nuclear Power Plant Unit 3 Delayed to After End of 2027

Hokkaido Electric Power Co. announced on July 30 that the restart of Unit 3 at the Tomari Nuclear Power Plant will be significantly delayed compared to earlier expectations, with the earliest possible date being the end of 2027 or later. Previously, the company had set a target of restarting as early as possible within 2027, but due to delays in the seawall construction project and the fact that the Nuclear Regulation Authority (NRA) has not yet completed its review of the relevant design and construction plans, the timeline for the unit's return to operation remains uncertain. Hokkaido Electric Power President Susumu Saito stated at a press conference that the seawall at the Tomari plant was originally scheduled for completion in the spring of 2027, but is now expected to be finished by mid-August 2027 due to additional work such as seismic reinforcement of the wharf and liquefaction countermeasures...

2026-07-31

Fuel unloading completed for Unit 3 of Dukovany Nuclear Power Plant

On July 30, Unit 3 of the Dukovany Nuclear Power Plant completed the unloading of reactor fuel assemblies, and the planned refueling outage has now entered its next phase. During this outage, the plant will replace part of the nuclear fuel and carry out hundreds of inspections, tests, and maintenance activities to enhance nuclear safety levels and ensure the long-term stable operation of the unit. In this outage, although the actual number of fuel assemblies to be replaced accounts for about one-fifth of the total, operators must first remove all fuel assemblies from the entire core and transfer them to the spent fuel pool. Subsequently, the reactor water level will be lowered to create conditions for maintenance of core cooling system components and inspection of some primary circuit equipment...

2026-07-30

Chugoku Electric Power Submits Third Amendment to Reactor Installation Change Permit Application for Shimane Nuclear Power Plant Unit 3 to Regulatory Authority

Chugoku Electric Power Co., Inc. announced on July 29 that it had submitted the third amendment to the reactor installation change permit application for Unit 3 of the Shimane Nuclear Power Plant to the Nuclear Regulation Authority (NRA) on the same day. The company stated that this amendment adjusts the application content for related equipment at the plant based on previous review findings. This includes reclassifying certain equipment already installed for Unit 2, such as the emergency response center, for shared use between Unit 2 and Unit 3. According to reports, Chugoku Electric Power had previously submitted two amendments to the reactor installation change permit application for Unit 3 of the Shimane Nuclear Power Plant, on December 22, 2021, and June 29, 2022, respectively.

2026-07-29

Tianwan Unit 7 and Xudapu Unit 3 are expected to enter the commissioning phase within a few weeks.

Likhachev, Director General of Rosatom, stated on July 24 that Unit 7 of the Tianwan Nuclear Power Plant and Unit 3 of the Xudapu Nuclear Power Plant in China are expected to enter the commissioning phase within the coming weeks.Responding to questions fr

2026-07-27

The first nuclear steam turbine roll test for Unit 3 of the Huaneng Changjiang Nuclear Power Project (Phase II) was successfully completed.

At 07:56 on July 24, Unit 3 of the Huaneng Hainan Changjiang Nuclear Power Plant—the first large-scale pressurized water reactor (PWR) nuclear power project controlled and constructed by China Huaneng Group Co., Ltd., and the first "Hualong One"

2026-07-27