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Organization Information


Name of Organization:Organization for Cross-regional Coordination of Transmission Operators, JAPAN (OCCTO)

Date of Establishment:April 1, 2015

Address:6-2-15, Toyosu, Koto-ku, Tokyo, 135-0061, JAPAN (Location)

Board Members

President:Tsutomu Oyama

Executive Vice-president:Takaya Kishi

Executive Vice-president:Yukihiko Tayama

Executive Vice-president:Kazuki Terashima

Executive Vice-president:Norihisa Hijikata

Executive Vice-president:Toru Masutani

Auditor (Part-time):Harumi Kojo

Auditor (Part-time):Akira Chiba


Chair of Councils

Kenji Yamaji
(President, Research Institute of Innovative Technology for the Earth (RITE))


Reiko Akiike
(Managing Director&Senior Partner, BOSTON CONSULTING GROUP)
Mami Ito
(President and CEO, NIHON DENTO KOUGYO Co., Ltd.)
Yasuhiko Ushikubo
(Managing Executive Officer, Head of Research & Consulting Unit / Chief Sustainability Officer (CSuO))
Hiroshi Esaki
(Professor, Graduate School of Information Science and Technology, The Univetsity of Tokyo)
Minako Oishi
(Consumer Affairs Advisor, Nippon Association of Consumer Specialists(NACS))
Koichi Kuranuki
Yukari Takamura
(Professor, Institute for Future Initiatives, The University of Tokyo)
Masanori Takegawa
(Deputy Chief, Editorial Board, The Mainichi Newspapers Co., Ltd)
Masahiro Murakami
(Professor Emeritus, Hitotsubashi University),(Visiting Professor, Showa Women’s University)and(Attorney at law TMI Associates)
Noriyuki Yanagawa
(Professor, Graduate School of Economics, The University of Tokyo)
Hirotaka Yamauchi
(Specially Appointed Professor, Department of Business Administration, Faculty of Business Administration, MUSASHINO UNIVERSITY),(Emeritus Professor, HITOTSUBASHI UNIVERSITY)


General Meeting

*All the Electric Power Companies have obligation to be members of OCCTO.

Responsibilities of OCCTO members

  • Observance of Rules for Instructions and Requests from OCCTO
  • Payment of Membership Fee
  • Submission of Electricity Supply Plan
  • Emergency Disaster Preparedness


Audit and advice to the Board of directors

Board of Directors

Board of Councilors


General Affairs Dept.

Member liaison, formulation and review of rules for network use, operating Switching Support System, disaster prevention, information security measures

Public and International Relations Office
Reinforcing functions for collecting and transmitting information

General Planning Dept.

Study of ideal reserve and balancing capacity , undertaking a detailed design of,and operating the capacity market

Network Planning Dept.

Demand forecast, aggregation of electricity supply plans, and formulation of long-term development plan of cross-regional network and cross-regional network development plan

Acceptance of preliminary consultation and system impact study for power generation facility with over 10MW

Network Operation Department

Respond to power shortage, management of cross-regional interconnection lines,coordination of maintenance work plans, and operation of Cross-regional Operation System

Cross-regional Operation Center
Monitoring and managing of power supply-demand and system condition

Dispute Resolution Office

Respond to complaints and consultations, conciliation/arbitration

Audit Office

(Main operations are listed.)

Organization Chart PDF(372KB)

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