
TEPCO says cooling interruption of spent fuel pool at Fukushima Daini Unit 1 due to human error
Tokyo Electric Power Company (TEPCO) announced on July 29 that the event in April 2026, where the spent fuel pool cooling system at Unit 1 of the Fukushima Daini Nuclear Power Plant was shut down for approximately 32 hours, was determined to be caused by human error. At the time of the incident, the plant was in the decommissioning phase. On April 5, a fault alarm was triggered by the cooling water circulation pump of Unit 1 at Fukushima Daini. After on-site personnel confirmed smoke from the equipment, the pump was stopped, resulting in an interruption of the spent fuel pool cooling system for about 32 hours. TEPCO previously stated that the cause was damage to the cable connecting the pump motor. According to TEPCO's latest explanation, the cable melting may be related to the installation method when the cable was replaced in 2012...
2026-07-30

A member of Japan's Nuclear Regulation Authority inspects safety management at the Takahama Nuclear Power Plant.
Tomoyuki Sugiyama, a commissioner of Japan's Nuclear Regulation Authority (NRA), recently visited Kansai Electric Power Co.'s Takahama Nuclear Power Plant to inspect safety management measures, the execution of routine inspections, and pre
2026-07-27
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- 1 Thailand Advances SMR Regulatory Preparedness to Strengthen Energy Security
- 2 Removal of Highly Radioactive Spent Fuel Begins at Unit 2 of Fukushima Daiichi Nuclear Power Station
- 3 Kansai Electric Power and Tohoku Electric Power Plan to Participate in Spent Fuel Interim Storage Facility in Mutsu, Aomori Prefecture, Japan
- 4 TEPCO says cooling interruption of spent fuel pool at Fukushima Daini Unit 1 due to human error
- 5 Fukui Prefecture in Japan Likely to Approve KEPCO's Dry Storage Facility for Spent Nuclear Fuel
- 6 Japan's Fukui Prefecture Approves KEPCO's Construction of Dry Cask Storage Facilities for Spent Fuel
- 7 Vietnam's Ministry of Science and Technology and Canada's Saskatchewan Province Strengthen Cooperation on Peaceful Use of Nuclear Technology
- 8 DOE Officials Visit Fort St. Vrain Spent Fuel Storage Facility in Colorado
- 9 Three U.S. Nuclear Energy Companies Explore Manufacturing Next-Generation Reactor Fuel from Recycled Nuclear Materials
- 10 Nuclea Energy to Acquire Moltex Advanced Nuclear Technology Portfolio
- 11 Japan's Mutsu Spent Fuel Interim Storage Facility May Expand Participants; KEPCO and Hokuriku Electric Power Say They Are Considering
- 12 U.S. Department of Energy Selects SHINE Technologies for Genesis Initiative, AI to Optimize Reprocessing of 95,000 Tons of Spent Nuclear Fuel
- 13 Belarusian NPP safe operation period may be extended to 100 years, with first spent fuel to be shipped to Russia for reprocessing in 2034
- 14 Finland's Onkalo Spent Nuclear Fuel Final Disposal Facility Expected to Receive Operating License by Year-End
- 15 Idaho National Laboratory Moran Test Bed Completes Deployment Preparation for Spent Fuel Decladding Skid