JAPAN ATOMIC INDUSTRIAL FORUM, INC.

for Japanese

ATOMS in JAPAN

24 May, 2017

Ohi-3 & -4 NPPs Clear Safety Examinations toward Restarts this Autumn

On May 24, the Nuclear Regulation Authority (NRA) officially approved review reports certifying clearance of safety examinations by the Ohi-3 and -4 Nuclear Power Plants (PWRs, 1,180 MWe each) in Fukui Prefecture, owned and operated by the Kansai Electric Power Co. (Kansai EP). Twelve NPPs at six sites have now been approved as meeting the new regulatory standards.

Ohi NPPs: Units 3 & 4 are at the front.

Kansai EP will still have to obtain approvals of construction work plans (detailed design approval), consents from the prefecture and local municipality, and more. It hopes to restart both units as early as this autumn.

All seven NPPs at three sites for which Kansai EP had filed applications for safety examinations by the NRA – Ohi-3 and -4 plus the Takahama-1 through -4 and Mihama-3 NPPs, all in Fukui Prefecture – have now been approved. The company is preparing to apply for its Ohi-1 and -2 NPPs.

Kansai EP submitted its applications to the NRA for safety examinations of Ohi-3 and -4 in July 2013. A major focus of the examinations was the state of geologic faults within the site and the area around it. The company increased standard ground motion (Ss) – the assumed maximum shaking in an earthquake within the premises – to 856 gals (a unit of acceleration) from the previous 700 gals. It eventually managed to obtain approval after strengthening other preparedness for natural disasters, including installation of a seawall against tsunami.

In February 2017, the NRA approved review report drafts after a one-month period for public comments. The NRA concluded that the company’s basic policy on safety measures was compatible with the new regulatory standards.

On May 17, Kansai EP restarted its Takahama-4 (PWR, 870MWe), expecting to resume commercial operation in mid-June. It also plans to restart the Takahama-3 (PWR, 870MWe) in early June.

 

Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.

SNS facebooktwitter

NPPs Map

Video

Voices from Nuclear Industry – Contributing to a clean and resilient recovery

3 September, 2020
Voices from Nuclear Industry – Contributing to a clean and resilient recovery03:59

Recent News

16 October, 2020
Government’s Strategic Policy Committee Starts Deliberations toward Revision of Strategic Energy Plan
13 October, 2020
NUMO Accepts Suttsu’s Application for Literature Survey in Selecting HLW Final Disposal Site—First Since Release of Map of Scientific Features
12 October, 2020
Nuclear Power Plant and Reactor Exporters’ Principles of Conduct (NuPoC)
9 October, 2020
NRA Approves Draft Review Report Finding MOX Fuel Fabrication Plant Compatible with Regulatory Standards
23 September, 2020
Hitachi to End Business Operations on UK Nuclear Power Project
15 September, 2020
Japan’s Cabinet Office to Hold Virtual Side Event on Radiation Cancer Therapy at IAEA General Conference
10 September, 2020
New Report Released on Nuclear Power’s Role in Dealing with Environment Issues
4 September, 2020
Japan’s NRA Says RFS’s Recyclable-Fuel Storage Center Is Compatible with Regulatory Standards
3 September, 2020
JAIF Issues Joint Video Message with Foreign Counterparts
27 August, 2020
METI Minister Kajiyama Stresses Importance of Realizing HLW Final Disposal
▲TOP