Organization Overview
Name

Atomic Energy Association (ATENA)

Address

Keidanren Kaikan, 3-2, 1-Chome, Ohte-machi, Chiyoda-ku, Tokyo, 100-8118

Establishment dateJuly 1, 2018

Executive officers (as of July 1, 2018)
President & CEO

Ei Kadokami, Special Advisor, Mitsubishi Heavy Industries, Ltd.

Director

Hideki Toyomatsu, Director and Executive Vice President, The Kansai Electric Power Company, Incorporated

Director

Yoshihiro Tomioka, Director and Deputy Secretary General, The Federation of Electric Power Companies of Japan

AuditorAkio Takahashi, President, Japan Atomic Industrial Forum, Inc.

AuditorManabu Takamoto, President, The Japan Electrical Manufacturers’ AssociationMembers (as of July 1, 2018)19 companies and organizations
Central Research Institute of Electric Power Industry, Chubu Electric Power Co., Inc., The Chugoku Electric Power Co., Inc.,
Electric Power Development Co., Ltd., The Federation of Electric Power Companies of Japan, Hitachi, Ltd., Hokkaido Electric Power Co., Inc.,
Hokuriku Electric Power Company, Inc., Japan Atomic Industrial Forum, Inc., The Japan Atomic Power Company,
The Japan Electrical Manufacturers’ Association, The Kansai Electric Power Company, Incorporated, Kyushu Electric Power Company, Inc.,
Mitsubishi Electric Corporation, Mitsubishi Heavy Industries, Ltd., Shikoku Electric Power Company, Incorporated, Tohoku Electric Power Co., Inc.,Tokyo Electric Power Company Holdings, Inc., Toshiba Energy Systems & Solutions Corporation(Alphabetical order)

Atomic Energy Association (ATENA) will exercise leadership in thenuclear industry and step forward to address issues related to nuclear safety,
thereby promoting initiatives by nuclear operators to enhance safety.
About Atomic Energy Association (ATENA)

Ever since the Fukushima Daiichi Nuclear Power Station accident, nuclear operators have
responded appropriately to the new regulatory requirements. In addition to that, based on

Since the accident at the Fukushima Daiichi Nuclear Power Station, the nuclear

the reflections and lessons learned from the accident, they have sought to introduce various

industry has firmly resolved never to allow such an accident to happen again, andsafety measures in cooperation with the Japan Nuclear Safety Institute ( JANSI) and Central

pursued initiatives aimed at assuring an even higher dimension of safety that goes

Research Institute of Electric Power Industryʼs Nuclear Risk Research Center (NRRC) withbeyond the regulatory framework by having organizations, such as the Japanthe idea of “there is no zero risk in nuclear power”. Through these efforts, nuclear operators

Nuclear Safety Institute ( JANSI) and Central Research Institute of Electrichave restarted several plants that are safer than ever before. However, the industry has yet toPower Industry (CRIEPI) Nuclear Risk Research Center (NRRC), support andregain societyʼs trust in nuclear power̶we are aware that the environment surrounding

assist in nuclear operatorsʼ safety improvement efforts.

nuclear power continues to be severe.

So that these voluntary and continuous initiatives of the nuclear industry areTo firmly ensure operatorsʼ voluntary and continuous safety improvement activities, thewhole of the nuclear industry, including manufacturers, must cooperate and engage inPresident & CEO

dialogue with the regulatory authorities, build a transparent system to formulate effective

Ei Kadokami

safety measures and prompt operators to introduce them into the actual sites.
ATENA seeks to coordinate the activities of the nuclear industry and effectively utilize theknowledge and resources held by various industry entities to identify issues to be addressedpromoted by more sound basis, a new organization, ATENA, was established toeffectively utilize the knowledge and resources of the entire nuclear industry,
formulate effective measures while engaging in a continuing dialogue withregulators and others, and encourage nuclear operators to incorporate thesemeasures into their actual site operations.

together and propose safety measures from a scientific and objective viewpoint. By deploying
the proposed measures to nuclear power plants across the country, we hope to accomplish theRole of ATENA

higher level of safety for nuclear power plants.
Nuclear Regulation
Authority

analogous to a “boat that is rowing out upstream in a swift current.” If we do not keep on

2
DialogueExperts from inside andoutside Japan

Regulaterowing the boat, the current will carry us downstream. I believe that the nuclear operatorsand cooperate and row together as one to aim for the upper stream, toward even higher
safety level.
To that end, operators, manufacturers and related organizations will work together toimprove safety. ATENA will commit to exhibiting leadership within the nuclear industry
and take a new step forward in that endeavor.

Exchangeviews

1and manufacturers as rowers of the boat named ATENA can provide each other with ideas,
Implementation of safety measures

Powerstation

Powerstation

Promoteadoption ofeffective safetymeasures

ATENA

Powerstation
Participate (Effective utilization of knowledge and resources)

Nuclear operators

Evaluate and support

JANSI

Nuclear industry
Collaborate

Manufacturers

FEPC

JEMA

JAIF

CRIEPI

3 Communication with society about initiatives for improving safety

Society (including local communities and government organizations)

I have long considered safety improvement initiatives that the nuclear industry aims for（FEPC : The Federation of Electric Power Companies of Japan JEMA : The Japan Electrical Manufacturers' Association JAIF : Japan Atomic Industrial Forum）① Work throughout the nuclear industry to provide solutions to common issues
and encourage nuclear operators to incorporate effective safety measures② Engage in dialogue with regulators with the shared objective of improving safety③ Communicate with various stakeholders about safety improvement initiatives.

Business activities of ATENA

Identify and address the nuclear industry ʼ s common issues■ ATENA will make decisions on introducing voluntary andeffective safety measures while effectively utilizing theknowledge and resources of the entire nuclear industry, andencourage nuclear operators to incorporate these effective
measures into their actual site operations, thereby raising thelevel of safety at nuclear power stations even higher.

Mission■ ATENA will exercise leadership in the nuclear industry andstep forward to address issues related to nuclear safety, thereby
promoting initiatives by nuclear operators to enhance safety.

Vision■ ATENA will provide a framework for the nuclear operators,Identify issues

Issues that the nuclear industry should address will be identified by investigating and analyzing plant status, themost up-to-date knowledge and other data available both inside and outside Japan while incorporating theopinions of overseas experts and assessing the significance of issues and effectiveness of potential safety measures inreducing risks. Issues will be identified in the Steering Committee on which senior executive level personnel fromATENA members will serve as committee members.
Deliberate on issues

Technical reviews will be conducted for each issue in working groups that will be attended by experts including
those from manufacturers.

manufacturers, and other nuclear organizations comprising
the nuclear industry, to work collectively to address common
issues relating to nuclear safety. Within this framework, while
engaging in dialog with regulators as a representative of thenuclear industry, ATENA will exercise leadership in thenuclear industry and employ a high level of expertise,transparency and objectivity to identify and deliberate on
issues relating to nuclear safety that the nuclear industry
should address, make decisions on voluntary safety measures
under singular governance, and encourage nuclear operators toincorporate these measures into their actual site operations.

Activity policy

Plant status
Regulatory requirements conformance status
Trouble reports
Probabilistic risk assessment (PRA), stress test results (risk proﬁle), etc

Domestic knowledge

Issues to be addressed

Technical issues that operators are aware ofTechnical issues that the regulatory authorities are aware ofIssues shared in owners groups

Mainissues

by the nuclear industry
Prioritized

Status of JANSI s domestic and overseas information analysis

Overseas knowledge, etc
The most up-to-date knowledge discussed at IAEA, NEI, EPRI, andregulatory agencies abroad (e.g. U.S. NRC and French ASN), etc

Organization of ATENA
Steering Committee･Identify issues･Make decisions on safety measures･Assess status of safety measure implementation, etc

AttendTechnical discussion in working groups

Probabilistic risk assessment (PRA): A comprehensive methodology to review accident scenarios that may occur at nuclear power plants and quantitatively assess the frequency and the impact of such scenarios
Stress test: A test that evaluates the safety margin of safety critical facilities and equipment for a nuclear power plant event exceeding design basis event
Risk proﬁle: Quantitative or qualitative risk assessment results of power plants
Owners groups: Meetings to conduct necessary technical discussions and share technical information between domestic nuclear operators and domestic plant manufacturers. There are the JapanPWR Owners Group and Japan BWR Owners Group.

President & CEO
EO
Directors

IAEA International Atomic Energy Agency

NEINRC

Nuclear Regulatory Commission

EPRI Electric Power Research InstituteASNAutorité de sûreté nucléaire

Nuclear Energy Institute■ ATENA members senior executive level personnel serveas committee members■ ATENA policies determined with the commitment of allcommittee members■ Safety measures agreed upon using a methods that does
not require the unanimous consent of nuclear operators

Administration Committee
・Deliberate on issues and the review structure, etc■ ATENA members director level personnel serve as

committee members

Admin-ister
ATENA
affairs

Secretariat
・Coordinate activitiess inthe nuclear industryomm■ Expert staff dispatched fromnuclear operators andmanufacturers

Deploy safety measures［ Information Release ］
・Issues to be addressedby the nuclear industry

・Technical reports
・Status of operators

implementation ofsafety measures, etc

Make decisions on safety measures

Examples of technical reports

ATENAʼs policy is determined in the Steering Committee
attended by regular members. Nuclear operatorsʼ
deployment of safety measures in the site will not require
unanimous consent.

■ Nuclear industry guidelines that contribute to the further
improvement of safety■ Response policy for new knowledge■ Guidelines that specify the operational procedures to fulfill
the regulatory requirements, etc

Compile and release the technical reports to the public

Working Groups
・Deliberate on topics･Conduct a technical review of each issue･Prepare technical reports, etc■ Comprised of leading experts of the nuclear industry in amanner commensurate with the issue

Such as recommendation on safety measures will becompiled into a technical report and released to the public.

Assess, and inform the status of the industry
Every year, assess and release to the public the status of the nuclear operatorsʼ implementation of safety
improvement initiatives including their effect on risk reduction

PDCA Cycle for ATENA activities

Business activities

Coordinate activities within the nuclear industry

The PDCA cycle will be operated following the work processes below. Priority items that need to be addressed by
the nuclear industry will be determined and described in ATENAʼs business plan . Activity performance of thewhole industry will be evaluated.

Each stage of the process, including identifying the issues to be addressed by the nuclear industry and deliberating
on individual issues, will be conducted effectively and efficiently, utilizing the knowledge and resources held by thenuclear industry.

Identifying issues tobe discussed

PInformation domestic and abroad[Each company/institution]

Discussion/identiﬁcation[Steering Committee]

Priority issues to be addressed by an industry

Determination of
the action plan
Implementation/Assessment

DCA

Plant status[Operators]

Discussion/identiﬁcation[Steering Committee]

Action plan [Each company/institution]
Business plan [ATENA]

Implementation■ Issues to be grappled with are extracted based on plant status
and information domestic and abroad. Priority issues arestudied and identiﬁed in the Steering Committee.
■ In selecting the issues, the committee will incorporate theopinions of overseas experts and share the course of direction
with the regulatory authorities through dialogue.
The extent of the risk reduction impact will also be taken into
account.

Steering Committee■ The action plans for each company and institution and the ATENA
business plan will be determined following the above process.

■ The Steering Committee will assess the performance of the wholeindustry. JANSI will evaluate each operator s efforts depending on
the issue.

Assessment■ Identify issues■ Determine the deliberation framework

Collaborate

Working Groups

Sharing plant information, knowledge,
research results, resources

Gather knowledge domesticand abroad,analyze information, etc
Assessment and support ofoperator activities

招集■ Identiﬁed issues will be made public.

■ The most effective deliberation framework for the agreed uponissues will be discussed by the Steering Committee and will be
reﬂected in the action plan of each company and institution.
Mid-term action targets and deliberation deadlines for individual
issues will also be discussed.

JANSI

ATENA

■ Nuclear industry experts gather todeliberate on issues and conduct technicaldiscussions on individual issues.

Adjust the activities plan of companies and organizations to be addressed byidentiﬁed issues (research plan, technical discussion details, resources, etc.)

Nuclear operators
FEPC

Manufacturers
JEMA

Plant operation management

Gather knowledge domestic and abroad,

Regulatory requirements conformance response

information analysis, etc

CRIEPI

Gather knowledge domestic and abroad

Voluntary safety improvement initiatives
Risk communication, etc

Technical discussion of plant

Conduct research, etc

PDCA: An activity cycle for improving work performance. An acronym of Plan-Do-Check-Action.

Discussion flow for individual issues
Prepare technical reports[Working Groups]■ Technical discussion of issues will be conducted by,working groups consisting of industry experts.
■ Discussion results (safety measures policy and such) will becompiled into a technical report.

Make decisions on safety measures[Steering Committee]■ Probabilistic risk assessment (PRA) and other methods will
be used to assess the effects of safety measures, andopinions of domestic and overseas experts will beincorporated in compiling the report.
■ ATENA members will commit to the technical report in theSteering Committee, and nuclear operators will implement
measures into their sites based on this report.

Introduction of measures in the site
[Individual Operators]

Assessment■ The technical report will be made public.

■ The implementation status of nuclear operator safetymeasures will be periodically conﬁrmed and made public.

Dialogue with the regulatory authorities
The regulatory authorities and operators will share issues from the initial discussion stage. Among such issues, issues
that could be beneficial to investigate in increasing safety effectively and efficiently will be selected. Whendeliberating on individual issues, dialogue with regulators will also take place and the process of developing safetymeasures will be shared each other.

Opinion exchanges with experts domestic and abroad
The opinions of experts domestic and abroad will be incorporated in deciding on issues and safety measures.