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Micro Modular Reactor Project at Chalk River

Global First Power is proposing the site preparation, construction, operation, and decommissioning of a single small modular reactor, using Micro Modular Reactor (MMR) technology. The proposed project is located at the Chalk River Laboratories site, in Renfrew County, Ontario, approximately 200 km northwest of Ottawa. The proposed project includes a nuclear plant, which would contain a MMR High Temperature Gas-cooled Reactor that would provide process heat to an adjacent plant, via molten salt. The MMR would produce approximately 15 Megawatt (thermal) of process heat to generate electrical power and/or heat, over an operating life-span of 20 years.

Under the Nuclear Safety and Control Act, Global First Power's proposal requires approval and licensing by the Canadian Nuclear Safety Commission (CNSC). An environmental assessment (EA) conducted under the Canadian Environmental Assessment Act, 2012 is required, and an EA decision affirming that the proposed activities will not cause significant adverse environmental effects, before the CNSC can make a licensing decision on this proposal.


This map is for illustrative purposes. The markers represent the approximate locations based on available data. More than one marker may be identified for a given assessment.

Latest update

April 29, 2020 - CMD 20-H102 - Submission from CNSC Staff on the Proposed Scope of Factors to be Considered in the Conduct of an Environmental Assessment for a Project Proposed by Global First Power, available here.


April 28, 2020 - Disposition table of public and Indigenous groups’ and organizations’ comments on project description for the Micro Modular Reactor Project, available here.


April 9, 2020 - In its continued response to the COVID-19 pandemic, the Canadian Nuclear Safety Commission (CNSC) is postponing and making changes to upcoming Commission proceedings. As a result, the document deadlines for the Micro Modular Reactor Project environmental assessment (EA) scoping hearing in writing have been extended by 30 days. The CNSC staff Commission member document will be available by May 1 and interventions are due June 1, 2020.

Read the revised notice.


January 27, 2020 - In May 2020, the CNSC will render a decision on the proposed scope of factors to be considered in the conduct of an EA for the Micro Modular Reactor Project.  The decision will be based on written submissions to the Commission. Through its Participant Funding Program, the CNSC is offering assistance to Indigenous peoples and members of the public in reviewing CNSC staff’s submission and associated documents on the scope of factors to be considered in the EA for the proposed MMR Project, and in participating in the Commission hearing process, by providing topic-specific submissions to the Commission. The deadline for submitting a completed participant funding application form to the CNSC is February 10, 2020.

To learn more about the Commission decision-making process for the EA scope of factors and the PFP opportunity, read the notice.


List all records


  • Canadian Nuclear Safety Commission
  • 280 Slater Street
  • Ottawa, ON, K1P 5S9
  • Telephone: 613-943-9919 or 1-800-668-5284
  • Fax: 613-995-5086
  • Email:

  • Location

    • Chalk River (Ontario)
  • Project Type

    • Nuclear Energy
  • Status

    In progress
  • Start Date

  • Proponent

    Global First Power
  • Authorities

    • Canadian Nuclear Safety Commission
  • Assessment Type

    Environmental assessment under CEAA 2012
  • Reference Number


Nearby projects

..within 200 kilometres
Date modified: