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Our Structure

WANO consists of a Governing Board, a central office in London, a support centre in Shanghai, and regional centres in Atlanta, Moscow, Paris and Tokyo, each with their own regional Governing Boards. Policy is set by the Governing Board and all policies and services are implemented by the WANO London and Shanghai offices and the regional centres.

WANO organisational chart

Governing Boards

WANO’s Governing Board is accountable to the members for the association’s overall direction and success. To promote direct engagement of members at a high level, the Governing Board includes three members from each regional centre in addition to the Chairman, President and Chief Executive Officer (CEO).

Each regional Governing Board Chairman is automatically a WANO Governing Board member and the regional Governing Boards each nominate two additional candidates from their region, one of whom is expected to be the chief executive that represents the area’s largest or most influential member.

WANO’s Chairman is elected by the Governing Board for a four-year term and can serve for no more than four consecutive years, unless the Board decides otherwise.

WANO Chairman

Tom Mitchell

Tom MitchellTom began his tenure as WANO Chair in March 2019 and his term ends in March 2025. He has over 40 years of nuclear energy leadership experience. He formerly served on the Board of Directors of FirstEnergy Corporation, and also as Chair of the Board’s Nuclear Committee and as a member of its Governance Committee.

He is the retired President, CEO, and Director of Ontario Power Generation in Canada. In that role, and as Chief Nuclear Officer, Tom was directly responsible for the safe, reliable, and cost-effective operation of 10 CANDU-design nuclear units with 6600 MW of capacity.  Prior to this Tom was the senior site vice president of the 4 CANDU unit Pickering B station.

While at OPG, Tom oversaw the successful completion of several new hydroelectric projects, the transition from coal-fired power generation, and a major business transformation of the company’s size and cost structure.

Prior to his OPG experience, Tom had roles of increasing responsibility at Philadelphia Electric Company’s (now Exelon) Peach Bottom Atomic Power Station in Pennsylvania USA culminating in his appointment as Site Vice President.

Tom was Vice President of International Programs and Assistance at INPO and served as Deputy Director of the WANO Atlanta Centre. While at OPG, Tom was a member of the Atlanta Centre Governing Board and its Chair from 2012 to 2015.

Tom has served on the Board of the US Electric Power Research Institute and was a member of the Leadership and Compensation Committee. He also has served on the Board of the US Nuclear Energy Institute and was Chair of the WANO Post-Fukushima Commission.

Tom has an undergraduate degree in nuclear engineering from Cornell University, a master degree in mechanical engineering from George Washington University, and an honorary doctorate degree from University of Ontario Institute of Technology.
WANO President

His Excellency Mohamed Al Hammadi 

His Excellency Mohamed Al Hammadi is Managing Director & Chief Executive Officer of the Emirates Nuclear Energy Corporation (ENEC).

Since 2008, Mohamed Al Hammadi has led the Emirates Nuclear Energy Corporation (ENEC) in successfully delivering the UAE Peaceful Nuclear Energy Programme, focusing on the implementation of the highest national regulations and international standards of safety, security, quality, transparency and non-proliferation.

Al Hammadi leads the organisation in powering the future growth of the UAE through the safe and efficient deployment of the Barakah nuclear energy plant. Barakah is the first nuclear plant in the UAE and the Arab World and is the region’s single largest electricity generator; it contributes significantly to the UAE’s 2050 net zero initiative.

Al Hammadi directs the implementation of ENEC’s nuclear energy research and development programme, exploring opportunities for the future, such as Small Modular Reactors (SMRs) and the production of clean hydrogen. 

In 2022, Al Hammadi was elected as President of WANO. He is also a board member of the World Nuclear Association (WNA) and SMR developer Terrapower. He is a senior member of the Institute of Electrical and Electronics Engineers (USA), the International Council on Large Electric Systems, and the Engineers Association of the UAE. 
Atlanta Centre Governors

Mike-R-cropped-(1).jpgChairman: Mike Rencheck, President and CEO of Bruce Power

Michael W. Rencheck is President and Chief Executive Officer of Bruce Power. Over the last 38 years, Mike has served in a number of roles and most recently was the Deputy Chief Operating Officer for AREVA overseeing its extensive Global capital portfolio of nuclear and renewable projects. Prior to this, he served as President and CEO of AREVA Inc. in North America leading its diverse nuclear services business in Canada and the United States with a workforce of about 5,000 people.

Prior to joining AREVA, Mike was the Senior Vice President and Chief Nuclear Officer at American Electric Power (AEP). AEP is a major investor-owned electric utility in the United States, delivering electricity to more than 5 million customers in 11 states with 38,000 MWs of generation assets. After joining AEP in 1998 as VP of Nuclear Engineering, Mike held various positions during his tenure, including Senior VP of Engineering, Projects and Field Services; Senior VP of Engineering, Technical and Environmental Services; and President of AEP ProServ, a wholly-owned engineering and field services subsidiary responsible for major power generation projects and outage management.

Before joining AEP, Mike worked in various power generation positions for Florida Power Corporation, Public Service Electric & Gas Company, and Duquesne Light Company.

Mike was recognized by the National Safety Council for his leadership demonstrating a personal commitment to worker safety and health as part of ‘CEO’s who get it’ and by Ontario’s Chamber of Commerce Business Achievement Award as “CEO of the Year.” He served as a US Department of Energy Ambassador for minorities in STEM and has demonstrated a commitment to many organizations that make a difference in people’s lives including Habitat for Humanity and United Way. He is a Professional Engineer and certified senior reactor operator

Governor: Robert F. Willard, President and CEO, Institute of Nuclear Power Operations

Governor: Cosmin Ghita, Chief Executive Officer of Centrala Nuclearelectrica Cernavoda

Moscow Centre Governors

Chairman: Eduard Martirosyan, Director General, Haykakan Atomayin Electrakayan Closed Joint-Stock Company (CJSC)

Eduard Martirosyan was appointed by order of the Minister of Territorial Administration and Infrastructures of the Republic of Armenia, as General Director of the «HAEK» CJSC in 2020. He graduated from the Faculty of Transport of the State Engineering University of Armenia in 1996.

Governor: Mr Zhang Yi, General Manager of Jiangsu Nuclear Power Corporation
Governor: Alexander Shutikov, Director General, Rosenergoatom, Joint-Stock Company

Paris Centre Governors

Chairman: Johan Svenningsson, CEO and Country Chairman of Uniper Sweden 

Johan Svenningsson serves as CEO and Country Chairman of Uniper Sweden since 2015. He holds the positions of CEO, COO, Chairman, Deputy Chairman and member of Boards of Directors across major Swedish energy and nuclear power groups and plants, including Sydkraft AB (Nuclear, Hydro-power and Thermal-power sections), the Swedish Nuclear Waste Management Company, and the Oskarshamn, Barsebäck, Ringhals and Forsmark nuclear power plants. He also is Governor in the World Association of Nuclear Operators (WANO) as well as a board member in the World Nuclear Association (WNA).

Johan was previously CEO of OKG AB, deputy CEO at the Swedish Technical Research Institute AB, and he held different management positions within Westinghouse and ABB Nuclear and Pharmadule Emtunga. He also is a member of the Boards of Directors of the Swedish Energy Industry Employer Association. Johan holds an MSc in Mechanical Engineering (Chalmers Institute of Technology, Sweden).

Governor: Cedric Lewandowski, Group Senior Executive Vice President, Nuclear and Thermal, of EDF

Governor: Carlo Wolters, CEO of N.V. EPZ
Tokyo Centre Governors

Chairman: Yutaka Kanai, Representative Director & President, Hokuriku Electric Power Company 

Mr Kanai has 43 years’ experience working in the power generation industry, with 38 years in the nuclear sector. 

He has experienced nuclear power operations from new site construction, operations, maintenance, outage management, plant management as a Chief Nuclear Officer and corporate management as a CEO.  

Mr Kanai has been involved in WANO Tokyo Centre activity for nine years as a governor and participated in many WANO conferences. He also serves as a Vice Chairman of the Federation of Electric Power Companies of Japan (FEPC). 

Governor: Hayashi Kingo, President and Director, Chubu Electric Power Company, Inc

Governor: Mr ZOU Zhengyu, General Manager of China National Nuclear Power Co., LTD (CNNP).

Executive Leadership Team

Executive Leadership Team WANO’s CEO is based in London with Directors in each of the four regional centres. Together, they make up the Executive Leadership Team, which is responsible for the day-to-day operation of WANO.

WANO Chief Executive Officer

Naoki Chigusa

Peter ProzeskyDr Naoki Chigusa took up his position as WANO Chief Executive Officer (CEO) on 1 January 2023. Prior to this, he joined the WANO Tokyo Centre in July 2014 as Director General.

He has more than 40 years of experience in Nuclear Operations, Maintenance and Engineering, having started his career in 1982 at the Kansai EPC. He has served at the Ohi and Mihama nuclear power plants, and in the Kansai corporate office and he has served as Director Nuclear Technology and Executive Officer.   

Dr Chigusa has served as an Expert Member on the Nuclear Safety Commission of Japan. He is a Professor of the Graduate School of Engineering at Osaka University. 

Dr Chigusa has a Ph.D. in Nuclear Engineering from University of Tokyo. He earned a Master’s degree and a Bachelor’s degree in Mechanical Engineering, both from Kyoto University.  
Atlanta Centre Director

Steve Meng 

Russ BrianSteve Meng serves a dual role as the Director of the Atlanta Centre for WANO and as Vice President, International Strategy, for the Institute of Nuclear Power Operations (INPO). He assumed both positions in August 2023. 

Steve joined INPO in 2007 and brings 35 years of experience to his role. Most recently, he was a loaned employee to Duke Energy where he served as Vice President, Corporate Operations. His previous positions include: Director, Plant Operations; Manager, Plant Operations; team leader; Director, Process Optimization; Manager, Emergency Preparedness; and WANO Operating Experience Technical Program Manager. Steve also served as the lead investigator and primary author for the INPO Special Report on the Nuclear Accident at the Fukushima Daiichi Nuclear Power Station. 

In addition to INPO, Steve has worked as a Chief Engineer in the fossil industry, held positions in operations and training with General Electric – Knolls Atomic Power Laboratories, and engineering and operations with Exelon. 

Steve started his career in 1987 in the United States Navy. He received a bachelor’s degree in marine engineering from the United States Merchant Marine Academy and a master’s degree in business administration from Regis University. Steve earned a senior reactor operator license at Clinton Power Station.
Moscow Centre Director

Vasily Aksenov

Vasily AksenovMr Aksenov was named Director of the Moscow Centre in February 2015. After graduating from the Moscow Power Engineering Institute in 1981, Mr Aksenov joined the Kalinin NPP branch of Concern Rosenergoatom in 1996, where he was a Chief Engineer until 2005. He then went on to become the Deputy Director General of Concern Rosenergoatom at Kalinin NPP until 2007.

In 2007, he graduated from Saint-Petersburg State Polytechnic University, majoring in Organisation Management. In the same year, he became the Deputy of Technical Director on new power units of Federal State Unitary Enterprise for Concern Rosenergoatom NPPs.

In 2008 until early 2015, he was the First Deputy of the General Director – Chief Engineer of JSC Atomenergoremont of Rosatom State Corporation. He has also been a Candidate of Technical Sciences since 1999.
Paris Centre Director

Satu Kristiina Katajala

Satu Kristiina KatajalaIn January 2024, Satu Kristiina Katajala became WANO Paris Centre’s Director.

Satu Katajala has more than 30 years of experience in nuclear operations and radiation protection.

Starting in 1990 at Loviisa and starting in 1991 at TVO as Radiation Safety technician, from 1995 her positions at Fortum’s Loviisa NPP included Radiation Safety Officer, Nuclear Safety Engineer, RP Engineer, RP Manager, Head of Safety and Site Vice-President of Loviisa NPP.

In 2012, she started the role of an IAEA 3S educator for new comers; and in 2022 she became an IWG FME Executive Sponsor.

From 2016 to 2022, she served as Board Member of Posiva.

Before joining WANO Paris Centre, Satu was Vice-President for Corporate Nuclear Oversight and International Cooperation, at Fortum's Loviisa NPP.

Tokyo Centre Director

Kim Keeyoung

Naoki ChigusaMr Kim Keeyoung took up his position as Director General of Tokyo Centre on 1 January 2023.

From November 2021, Mr Kim was KHNP Head Office Safety Department Vice President, in this role, he oversaw the safety performance of 24 KHNP plant units. Before this Mr Kim was the Director General of KHNP’s Human Resource Development (HRD) Institute, in this role he was responsible for the HRD across the company.

Mr Kim has gained more than 30 years of experience in nuclear operation, training and safety oversight including serving as a shift manager and a senior manager at KHNP head office. From 2018 to 2020, he was seconded as Tokyo Centre’s Deputy Director General.

Mr Kim has a Master’s degree in Material Science and Engineering from Pusan National University. He also earned a Bachelor’s degree in Nuclear Engineering from Kyunghee University. Mr Kim also has a Korea Associate Coach Certificate (KCA).