The CANDU Owners Group management team, led by President and CEO Fred Dermarkar, provid​es leadership in five lines of business:  Research and Development (R&D), Joint Projects and Services (JP&S), Information Exchange (IE), Nuclear Safety and Environmental Affairs (NSEA) and Knowledge Management (KM). Members and Supplier Participants work together through collaboration. COG also has experienced Corporate Services and Information Management and Technology teams who ensure efficiency and security in all COG operations. ​

Fred Der​markar
President & Chief Executive Officer

Fred Dermarkar assumed the role of the CANDU Owners Group (COG) President and CEO in 2014. He has worked in the Canadian nuclear industry since 1981, and has held a variety of positions at Ontario Power Generation in support of Design, Commissioning, Operation and Refurbishment of its CANDU NPPs. In 2001, he became Director of Engineering and his responsibilities included other technical areas such as Chemistry, Metallurgy, Nuclear Safety Analysis and Probabilistic Risk Assessment.

In October 2013, Fred was named a recipient of the WANO Nuclear Excellence Award for his leadership and contributions to the overall WANO Post-Fukushima Response.

Fred retired from OPG as the Vice President of Engineering Strategy in February 2014 to assume his current role. Fred is a graduate of the University of Toronto with a degree in Mechanical Engineering.​

John Moore
Director, Corporate Services and Chief Financial Officer

John Moore has served as director of corporate services and chief financial officer since January 2018. He joined the company as the program manager of the Fuel Channel Life Management program in 2017. Before joining COG, John worked within the Nuclear Energy Department of the International Atomic Energy Agency (IAEA) in Vienna, Austria. In his role, he provided guidance and training on a variety of topics such as procurement, supply chain issues, financing, feasibility studies, piping, industrial safety and concrete aging. Before his role at the IAEA, John held a variety of project and design management positions at Ontario Power Generation and Ontario Hydro at the Pickering, Darlington and NPD nuclear power station.

John graduated from the University of Toronto with a Bachelor of Applied Science in Electrical Engineering and from York University's Schulich School of Buisness with a Master of Business Administration. He is a Licensed Professional Engineer in Ontario.

Carmen Trandafir

​​​​Manager, Information Technology & CIO

As manager of information technology (IT) and chief information officer, Carmen Trandafir brings more than 27 years of IT experience and leadership to the CANDU Owners Group (COG). 

Since joining COG in 1999, Carmen has developed the information management department to align business and IT strategies. She leverages technology to transform business processes. Carmen and her team focus on creating and maintaining reliable and secure IT infrastructure to meet COG's corporate needs and to help COG members and suppliers to collaborate efficiently. 

A team player and advocate for building relationships, Carmen is passionate about people development and constructing skilled and dedicated IT teams. Carmen is also a certified project manager. She is accredited by the ITIL Foundation and has a university degree in computer science.

Sonia Qureshi
Director, Joint Projects & Services Program

Sonia Qureshi is a registered Professional Engineer with the Professional Engineers of Ontario (PEO) with over 20 years of experience in the nuclear industry. As the Director of Joint Projects & Services, Sonia supports COG member nuclear utilities towards achieving excellence in performance of their CANDU reactors. She joined COG as a program manager in the Information Exchange department where she led the first-ever COG Collaboration Week and managed the 14th COG/IAEA Technical Committee Meeting. 

Prior to joining COG, Sonia held positions at Atomic Energy of Canada Limited (AECL), Candu Energy and SNC-Lavalin. Since her entry into the nuclear industry in 1997, Sonia has worked in many capacities including process system design engineer, senior cost engineer, business manager of product development and director of marketing and strategy.

Sonia graduated from the University of Toronto with a Bachelor of Applied Science in Chemical Engineering. She is also the Chair of the Women in Nuclear Canada's Golden Horseshoe West Chapter.

​​​Michael Brett
​​​Director, Research & Development Program

As Director of Research and Development, Michael Brett oversees the department responsible for managing a portfolio of projects in six streams of R&D, with an investment of almost $40M, annually. The result of these projects contributes to the safe, reliable, cost effective continued operation of CANDU stations worldwide.

Prior to joining CANDU Owners Group (COG)​​​, Michael spent more than 26 years with Ontario Hydro / Ontario Power Generation in Chemistry control / corrosion in positions of increasing responsibility including Manager of Chemistry and Environment at Pickering Nuclear and Manager of Chemistry, Metallurgy & Welding in Corporate Engineering. Prior to Ontario Hydro, he held research fellowships at both the National Research Council and Canmet in Ottawa. Michael has a BSc and PhD degrees from the University of Birmingham (UK). He is a Fellow of the Royal Society for Chemisty, a member of the Chemical Institute of Canada, and a Chartered Chemist. 

Don Wilson
Director, Information Exchange Program

Don Wilson is the Director of Information Exchange for the CANDU Owners Group (COG) Inc. As the Director of the Information Exchange (IE) department, the goal is to leverage operational experience and best practices across the industry and among CANDU utilities so that each member and supplier participant can make the most of shared operating experience and best practices. Knowledge Management is one of the Programs that is specifically designed to capture lessons learned, promote understanding of the CANDU technology and provide leadership training to the CANDU community. Another key program under IE is the COG Supplier Participant Program that is to share supplier perspectives, best practices and lessons learned, compile messages on common challenges in execution of services for customers, engage with customers and resolve common issues for the benefit of the industry, and finally to work collaboratively to ensure a strong supplier network supporting the CANDU nuclear industry.

Don joins COG with 33 years in the Nuclear Industry with OPG. During his 33 years he held several key positions in Engineering. The last position he held was the Director of Engineering for Inspection & Maintenance Services (IMS) reporting to the VP IMS & CNE. This entailed leading a highly specialized team of engineers and technicians in the design, commissioning and execution of various inspection campaigns in support of safe and reliable operation of Pickering and Darlington. Don graduated in 1980 with a Bachelor of Science in Engineering from University of Guelph.​

Rachna Clavero
Director, Nuclear Safety & Environmental Affairs Program

Rachna Clavero is the director of nuclear safety and environmental affairs at CANDU Owners Group. In this role, she oversees facilitation of industry alignment on key nuclear safety and regulatory issues, and promotes adoption of common strategies among the COG Members.
Rachna has had a diverse career in Safety Analysis and Licensing. She has worked for Atomic Energy of Canada Limited, Candesco Corporation and the Ontario Ministry of Energy. She began her career performing safety analysis for the restart of the Ontario reactors and then moved on to regulatory projects for Iter Canada, NWMO, OPG and Bruce Power. Rachna returned to AECL to lead licensing for new CANDU designs. During her time at the Ministry of Energy she provided strategic advice on nuclear new builds, refurbishment, radioactive waste management and emergency planning in Ontario.  Rachna joined COG in October 2015, where she has been the Program Manager for the Strategic R&D Program. She has consulted internationally at the IAEA and sits on the committee developing Nuclear Safety Standards at the Canadian Standards Association.

Outside of COG, Rachna volunteers as a regional judge for FIRST Robotics and is a member of Women in Nuclear.

John Sowagi
Acting Director, Knowledge Management

John Sowagi is the acting director of knowledge management. He has over 37 years of nuclear experience working at the Pickering, Darlington and Bruce nuclear generating stations. John has worked in technical and management roles both in the station environment and in support organizations. He current leads executive development programs, mentoring programs and international joint programs for COG members. He has led teams of utility leaders to over 80 nuclear plants around the world. 

John completed his education at Centennial College in Electrical and Controls, St. Francis Xavier University in Adult Education and the University of Toronto in Human Resources.

Bernice Brooks​

Executive Assistant/Manager, Office Services​

Bernice Brooks began her career at COG in 1999. ​Her prior experience includes positions in the life insurance industry and payroll for Toronto Transit Commission (TTC). Today, Bernice wears many hats at COG. Her role consists of assistant to the President, Office Manager and Payroll/Benefits/Pension administrator. ​