for Japanese


4 March, 2016

Hokuriku Electric Power Voices Objections to Report on Crushed Rock Fault Zones at Shika NPPs

On March 3, a panel of experts of the Nuclear Regulation Authority (NRA) issued a report concerning its final evaluation about a fault zone of crushed rock at the Shika Nuclear Power Plants, owned and operated by the Hokuriku Electric Power Co. concluding that one of the fault zones running directly under a reactor building “could possibly become an active fault in the future.”

Shika NPPs

The panel had issued a draft evaluation report to similar effect in July 2015. Later, in November of the same year, a peer review meeting was held of experts involved in evaluations of fault zones of crushed rock at other sites. The conclusions of the evaluation report were not reversed.

An examination is currently being carried out to see whether or not the Shika-2 (ABWR, 1206MWe) is compatible with new regulatory standards. Just as with Tsuruga-2 (PWR, 1160MWe), owned and operated by the Japan Atomic Power Company (JAPC)—for which the NRA secretariat identified 13 points to be addressed in a compatibility examination—the fault-zone evaluation issued this time will be referred to as “important knowledge and information.”

If the operator submits newer information obtained from additional investigations and other activities, the judgment of compatibility with new standards will include such information as well.

Upon issuance of the final evaluation report, Hokuriku Electric Power released a comment saying that “it is far from convincing,” adding that “we earnestly expect the compatibility examination to be resumed as soon as possible.”

The power company said that if scientific data obtained from its additional investigations were examined comprehensively, it would be rational to conclude that the fault in question is not one “that could possibly become an active fault in the future.”

Hokuriku Electric Power has said that it would properly respond to “future issues” presented by the expert panel this time. It will also further enhance its data, and explain the validity of its views during the compatibility examination.


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

SNS facebooktwitter

NPPs Map


“The current situation at Fukushima Daiichi NPS” -From 3.11 toward the future- (ver, Jan. 2020)

23 January, 2020
“The current situation at Fukushima Daiichi NPS” -From 3.11 toward the future- (ver, Jan. 2020)07:47

Recent News

3 August, 2020
On Taking Office as JAIF President
3 August, 2020
Nuclear Energy Buyers Guide in Japan 2020-21 is now available
31 July, 2020
Thoughts on the Decision to Approve Changes to the Reprocessing Business
31 July, 2020
NRA Permits JNFL to Alter Rokkasho Reprocessing Plant, Its Having Complied with New Regulatory Standards
30 June, 2020
“Existing NPPs to Enter Age of 80-Year Operations” JAIF Annual Survey Says
16 June, 2020
Toshiba ESS and Yokohama National University Boost Joint Research to Upgrade Heavy-Ion Cancer Therapy, Using Kanagawa Prefectural Facility
8 June, 2020
NRA Grants Permission to Make Changes to Reactor Installation at HTTR under New Regulatory Standards
22 May, 2020
Sendai-2 Starts Periodic Inspection, with Due Date Imminent to Install Specific Safety Facilities
15 May, 2020
NRA Issues Draft Review Report for Rokkasho Reprocessing Plant
30 April, 2020
Construction Begins of Next Generation Synchrotron Radiation Facility at Tohoku University, to Be Used for Fuel Cells and Pharmaceuticals