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Investigation to Be Conducted into Emergency Diesel Generator Failure at Unit 6 of Japan's Kashiwazaki-Kariwa Nuclear Power Plant

Tokyo Electric Power Company announced that it will investigate the failure of the emergency diesel generator at Unit 6 of the Kashiwazaki-Kariwa Nuclear Power Plant in Niigata Prefecture, Japan. The unit was restarted after 14 years of shutdown and resumed commercial operation in April this year. According to Tokyo Electric Power Company, in July this year, workers discovered that water had mixed into the lubricating oil of the emergency diesel generator at Unit 6. Subsequent inspections confirmed that there was a water leak in the cylinder head, a component of the generator engine. The company therefore determined that the unit currently does not meet the operational safety specification requirements. Tokyo Electric Power Company stated that it plans to complete the relevant repair work by September 19. If the repair cannot be completed by then, the cause of the failure will be further investigated, and measures may include shutting down the reactor for inspection.

2026-09-11

Safety review items for Shimane Nuclear Power Plant Unit 3 confirmed, operation planned for 2030

The Nuclear Regulation Authority (NRA) of Japan conducted a safety review of Shimane Nuclear Power Plant Unit 3 on September 10. This review is a necessary procedure before the unit can be put into operation. Chugoku Electric Power Company of Japan has been constructing Shimane Nuclear Power Plant Unit 3 since 2005 and has been undergoing NRA review since 2018. At the review meeting that day, Chugoku Electric Power Company gave explanations regarding earthquake, tsunami, and severe accident response measures for Unit 3. According to the meeting, all review items were confirmed on September 10. Next, Chugoku Electric Power Company will submit a revised document incorporating the relevant content discussed at previous review meetings. The NRA is expected to prepare a draft review report based on this...

2026-09-11

Lightbridge Multi-Zone Fuel Element Granted Japanese Patent, Covering Fuel Assemblies and 3D Printing Manufacturing Methods

Advanced nuclear fuel technology company Lightbridge Corporation recently announced that its Japanese patent application for a multi-zone fuel element has been granted by the Japan Patent Office. The patent covers the fuel element design, fuel assemblies incorporating the design, and methods of producing the element via additive manufacturing, i.e., 3D printing. According to the disclosure, the patent involves a fuel rod composed of three layers of different materials. The thickness of the three layers can vary along the length of the fuel rod, thereby regulating fuel performance at different positions in the reactor to enhance reactor operating performance and safety margins. In addition to the fuel rod itself, the patent also covers fuel assemblies for mounting these fuel rods.

2026-09-02

Hennessy Capital VII and ONE Nuclear Advance "Gas-to-Nuclear" Data Center Power Supply Plan

Hennessy Capital Investment Corp. VII and ONE Nuclear recently held a joint investor update to review the latest progress of their proposed business combination and disclosed ONE Nuclear's gas-to-nuclear strategy developed around the power supply needs of hyperscale data centers. According to relevant documents, the S-4 registration statement filed by both parties became effective on August 3, 2026, and Hennessy Capital VII has mailed the final proxy statement to shareholders of record as of July 31, 2026, for a vote on the business combination. ONE Nuclear stated that its business path will begin with behind-the-meter natural gas power generation to provide faster-deployable on-site electricity for data centers...

2026-08-21