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​Information Exchange

Information Exchange leverages 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. It also connects COG members for sharing of timely information, knowledge management and collaboration for operational, maintenance and refurbishment innovation.

Nuclear Safety & Environmental Affairs

Nuclear Safety & Environmental Affairs (NSEA) works on behalf of COG members to promote the adoption of common strategies to evolve policy and resolve issues for nuclear safety, regulatory affairs and the environment while furthering industry-level strategic initiatives.

​​Research & Development

Research & Development enables COG members to share the risks, costs and the rewards of R&D projects in six program areas: Nuclear Safety and Licensing; Chemistry, Materials and Components; Fuel Channels; Health, Safety and the Environment; and the Industry Standard Toolset of safety analysis codes. A Strategic R&D program is also underway to ensure long-term sustainability.

Joint Projects & Services​

The COG Joint Projects & Services program creates a collaboration forum where members can fund solutions to common issues and, together, innovate new approaches to design, operation, maintenance and refurbishment. As well, JP&S tackles materials-related issues such as acquisition of obsolete parts, sharing of spare parts and obsolescence management.

​COG Highlights


About COG

Learning & Development

​Small Modular Reactors



COG News​


May 2024 Collaboration Update.pdfMay 2024 Collaboration Update6/3/2024
March 2024 Collaboration Update.pdfMarch 2024 Collaboration Update3/8/2024
CANDU Owners Group (COG) 2023 Highlights.pdfCANDU Owners Group (COG) 2023 Highlights1/15/2024
November 2023 Collaboration Update.pdfNovember 2023 Collaboration Update12/7/2023


CANDU Owners Group (COG)

55 Bay Street, 17th floor
Toronto ON M5G 2K4 Canada

(416) 595-1888
(416) 595-1022 (fax)


Bruce Power
Canadian Nuclear Laboratories
CNNP Nuclear Power Operations Management, CNNO
Korea Hydro & Nuclear Power
New Brunswick Power
Nuclear Power Corporation of India
Nucleoélectrica Argentina
Ontario Power Generation
Societatea Nationala Nuclearelectrica

Atomic Energy of Canada Limited, Hydro-Québec and the Nuclear Waste Management Organization are also participants in some programs.

COG also has Supplier and Small Modular Reactor Vendor Participant programs. See full listing on the Participants page.

CANDU Owners Group - Excellence through collaboration

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