JAPAN ATOMIC INDUSTRIAL FORUM, INC.

for Japanese

ATOMS in JAPAN

30 May, 2018

Shikoku Electric Power Applies to Install Spent Fuel Dry Storage Facility for Operation in 2023

On May 25, Japan’s Shikoku Electric Power Co. filed an application with the Nuclear Regulation Authority (NRA) to examine the plan to construct a spent fuel facility at its Ikata Nuclear Power Plants, located on Shikoku Island. It also submitted requests to Ehime Prefecture and Ikata Town, hosting the NPPs, for their consent.

Shikoku Electric Power's Ikata NPPs

The facility is to be established within the premises of the Ikata NPPs to temporarily store spent fuel from the NPPs before its transfer to the Rokkasho Reprocessing Plant in Aomori Prefecture, located in northern Honshu. Shikoku Electric Power hopes to begin operating the facility in 2023.

The Ikata-3 (PWR, 890MWe) was restarted in 2016 after determination of its compliance with the new national regulatory standards following the 2011 accident at the Fukushima Daiichi NPPs. As of the end of September 2017, its existing spent fuel storage capacity was 78% full.

Additionally, because of the planned decommissioning of Ikata-1 (PWR, 566MWe), the spent fuel there is being moved to Ikata-3 (to be completed by March 31, 2020), with available storage space at Ikata-3 being further reduced. The power company has been hoping to establish a dry storage facility on-site since the end of 2016.

Spent fuel can be stored two ways: submerging it in a pool or enclosing it within metal casks. In the latter method—called “dry storage”—spent fuel cooled in wet storage to a sufficient degree is placed in casks and allowed to cool further via natural air circulation (outside the casks), without using water or electricity.

According to a release from Shikoku Electric Power, the dry-storage building at the facility will be able to house 45 dry casks, which can later be delivered outside the NPPs without the spent fuel having to be repacked in different containers for transport. Dry casks are designed to secure four safety functions: containment, prevention of criticality, shielding, and heat removal.

The power company has prepared pamphlets, aiming to enhance public understanding, explaining the purpose of the spent fuel dry storage facility, the mechanisms of the storage casks, safety functions and so on.

After receiving the request from Shikoku Electric Power, Ehime Governor Tokihiro Nakamura asked it to confirm three points: (1) the temperature of the spent fuel when stored in dry casks, (2) radiation levels during the transfer to dry casks, and (3) their earthquake resistance. He also called on it to thoroughly explain its actions to the public, particularly its “adherence to temporary storage.”

Faced with the challenge of expanding storage capacity—an issue common to all the country’s power companies—Japan’s Federation of Electric Power Companies (FEPC) supports the early completion of the Rokkasho Reprocessing Plant. To that end, it is addressing various technological considerations and working to enhance understanding.

The recently finalized draft of the national Strategic Energy Plan emphasizes the importance of this issue, stating, “Both the public and private sectors will unify their efforts toward safe and stable storage.”

Comment

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

SNS facebooktwitter

NPPs Map

Video

TAYLOR WILSON meets JAPAN

7 May, 2018
TAYLOR WILSON meets JAPAN04:28

Recent News

15 June, 2018
Fukushima Daini NPPs to Be Decommissioned as Well
12 June, 2018
Cabinet Approves FY2017 White Paper on Energy Policy, Including Overview from Mid-1800s to 2050
11 June, 2018
Nuclear Energy Buyers Guide in Japan 2018-19 is now available
4 June, 2018
TEPCO Opens Up Space in Common Pool at Fukushima Daiichi to Receive Spent Fuel from Unit 3
30 May, 2018
Shikoku Electric Power Applies to Install Spent Fuel Dry Storage Facility for Operation in 2023
29 May, 2018
JAIF President Sees HTGRs Carrying Japanese Technology to World, Helping to Secure Human Resources
28 May, 2018
ANRE Verifies Summer Electricity Supply and Demand Projections, Expecting 3% Reserve Capacity Margin in All Service Areas
28 May, 2018
JRI Projects 20% Lower Power Consumption in 2050 than in 2016
28 May, 2018
Committee Members Voice Opinions on Draft of Revised Strategic Energy Plan, Eyeing 2050
18 May, 2018
Draft of Revised Strategic Energy Plan Aims for Firm Implementation of 2030 Energy Mix, Eyeing 2050 As Well
▲TOP