JAPAN ATOMIC INDUSTRIAL FORUM, INC.

for Japanese

ATOMS in JAPAN

22 February, 2017

Ohi-3 and -4 Effectively Clear Safety Examinations

On February 22, the Nuclear Regulation Authority (NRA) approved review report drafts confirming that the Ohi-3 and -4 Nuclear Power Plants (PWRs, 1180MWe each) in Fukui Prefecture, owned and operated by the Kansai Electric Power Co. (Kansai EP), are compatible with the new regulatory standards. They will be officially approved after a period for public comments.

Kansai EP's Ohi NPPs

Kansai EP will complete work in May on various safety measures, including constructing walls to protect seawater pumps, available to cool the reactors in emergencies, from tsunami. Actual restarts of the units will follow various procedures, including inspections by the NRA of equipment/facilities and the obtaining of consents from the prefecture and local municipality. Kansai EP hopes to restart the units as early as this autumn.

Kansai EP filed applications with the NRA for safety examinations for the Ohi-3 and -4 NPPs in July 2013, when the new regulatory standards were issued. It took time, however, for Kansai EP to determine standard ground motion (Ss) (standard ground motion for aseismic design) – the greatest hurdle – and the examinations were much delayed.

Then, in June 2016, Kunihiko Shimazaki, former acting NRA chairman, who once led examinations of earthquake measures, made a great fuss, saying he suspected standard ground motion (Ss) at the Ohi NPPs had been underestimated. After a re-examination, the NRA determined that there was “no problem with the examinations and no another revision of Ss was necessary.”

Comment

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

SNS facebooktwitter

NPPs Map

Video

Grossi on Fukushima: Marking a Decade Since the Accident

10 March, 2021
Grossi on Fukushima: Marking a Decade Since the Accident04:11

Recent News

2 July, 2021
Mihama-3 Restarted After Decade-long Hiatus: First Restart in Japan of a Reactor Operating Beyond 40 Years
28 June, 2021
Mihama-3 Restarts after Decade-long Hiatus
25 June, 2021
New Canada-Japan Partnership Supports Greater Collaboration to Meet Climate Change Objectives and Net-zero Goals
24 June, 2021
METI Issues New Green Growth Strategy Through Achieving Carbon Neutrality
16 June, 2021
ANRE Sticks to “S+3E”
16 June, 2021
Japanese Cabinet Approves Environmental White Paper 2021
16 June, 2021
LDP Parliamentary Association to Reconfirm Position on Utilization of Nuclear Power
16 June, 2021
Fukui Governor Concerned about Deletion of Reference to “Maximum Utilization” of Nuclear Power
14 June, 2021
Working Group on Offshore Release of Treated Water Meets in Miyagi
14 June, 2021
NRA Considers Policy on Treating Slurry from ALPS, with Local Understanding Essential
11 June, 2021
Japanese Cabinet Approves Energy White Paper 2021
11 June, 2021
Government Omits Description of “Maximum Utilization” of Nuclear Power
9 June, 2021
MNF Hopes to Resume Fuel Production as Early as November
8 June, 2021
TEPCO to Develop Sample Tanks at Fukushima Daiichi to Prepare for Offshore Release of Treated Water
8 June, 2021
Opinions Differ Within Japan’s Governing Coalition Concerning Nuclear Power
8 June, 2021
Local Concerns About Unfounded Fears and Rumors on Offshore Release of Treated Water
7 June, 2021
JEMA Proposes that Nuclear Power Be Maintained at a Certain Scale
7 June, 2021
IHI to Participate in NuScale’s SMR Project
4 June, 2021
FEPC Declares for “Zero Emissions”
4 June, 2021
Support Grows Within LDP for Nuclear Power
▲TOP