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NRA Commissioner Inspects Radiation Management at Shimane Nuclear Power Station

Reiko Kanda, a Commissioner of the Nuclear Regulation Authority (NRA) of Japan, visited Matsue City, Shimane Prefecture, from September 7 to 8 to inspect radiation level management and on-site inspection work at the Shimane Nuclear Power Station. The NRA has a dedicated inspection team stationed at the Shimane Nuclear Power Station and conducts a related inspection once a year to confirm that resident inspectors can properly manage and monitor radiation levels. On September 8, the NRA inspected the emergency response center used by the nuclear power station in the event of a severe accident, focusing on confirming the inspectors' emergency response procedures. Reiko Kanda observed the inspection process on site. Reiko Kanda stated that the inspection work was carried out properly and that this inspection will serve as a reference for the NRA's future work.

2026-09-10

Japan Extends Deadline for Mandatory Anti-Terrorism Facility Installation at Nuclear Power Plants

The Nuclear Regulation Authority (NRA) of Japan formally decided at its regular meeting on August 26 to revise relevant regulations, extending the deadline for the mandatory installation of anti-terrorism facilities at nuclear power plants. The revised system is expected to be implemented in September. Under Japan's current regulatory requirements, nuclear power plants must be equipped with "specified severe accident response facilities" to address serious accidents that could potentially be triggered by extreme scenarios such as terrorist attacks. This revision shifts the starting point of the 5-year grace period from the date of approval of the detailed design and construction plan for the nuclear power plant to the date the plant officially commences commercial operation. This adjustment effectively relaxes the installation deadline requirements. The new rules will apply to nuclear power units that have not yet reached their installation deadlines. East...

2026-08-27

Japan's Mihama Nuclear Power Plant Unit 3 Receives Preliminary Approval for Operation Plan Beyond 50 Years

On August 25, Japan's Nuclear Regulation Authority (NRA) gave preliminary approval to Kansai Electric Power Co. (KEPCO) for the long-term facility management plan for Unit 3 of the Mihama Nuclear Power Plant. Located in Mihama Town, Fukui Prefecture, the unit will mark its 50th anniversary of commercial operation on December 1. In May of this year, the metal top cover of the high-pressure turbine at Mihama Unit 3 suffered damage, resulting in steam leakage. At the NRA meeting held that day, KEPCO explained that the cause of the incident was believed to be thinning of the inner wall of the top cover due to steam flow. The company stated that this phenomenon falls under previously anticipated aging and degradation management for turbine equipment, and that the existing plan already includes corresponding management measures. Visual inspection and other examination methods were also deemed applicable, thus no revision to the long-term facility management plan was required.

2026-08-26

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