Micro Modular Reactor Project

Global First Power is proposing the site preparation, construction, operation, and decommissioning of a Micro Modular Reactor nuclear plant at the Chalk River Laboratories site, in Renfrew County, Ontario, approximately 200 km northwest of Ottawa. The project would provide process heat to an adjacent plant via molten salt, and produce approximately 15 Megawatts (thermal) of process heat to generate electrical power and/or heat, over an operating life-span of 20 years.

The project requires an environmental assessment under the Canadian Environmental Assessment Act, 2012, and approval by the Canadian Nuclear Safety Commission for a licence under the Nuclear Safety and Control Act in order for the proposed project to proceed. However, before the Canadian Nuclear Safety Commission can consider making a decision on issuing a licence, an environmental assessment decision affirming that the proposed activities will not cause significant adverse environmental effects is required.

Latest update

May 10, 2024 - In August 2023, GFP informed CNSC staff of proposed updates to the project design and description of the proposed MMR Project, providing additional information in November 2023. Per the 20-H102 Record of Decision pertaining to the scope of factors for the environmental assessment (EA), the Commission directed CNSC staff to report to the Commission on any issues arising during the conduct of the EA that could warrant Commission reconsideration of the scoping decision.

CNSC staff reviewed GFP’s proposed changes to the project and have submitted an information memo to the Commission to report their findings and fulfill the Commission’s direction to CNSC staff from the scope of factors Record of Decision. The Commission will consider this memo during the May 22nd virtual public meeting. There is no Commission decision being sought on this matter.


Key documents

Key documents
Document Number Document Title File Date
132 Guidelines for the Preparation of an Environmental Impact Statement (revised March 2021) PDF (1.1 MB) March 1, 2021
127 Decision on the scope of an environmental assessment for the proposed Micro Modular Reactor Project at the Chalk River Laboratories PDF (274 KB) July 16, 2020
3 Project Description - Micro Modular Reactor Project at Chalk River PDF (2.7 MB) July 15, 2019


Canadian Nuclear Safety Commission
Doug Wylie, Environmental Review Officer
280 Slater Street
Ottawa, Ontario K1P 5S9
Telephone: 343-542-7668 or 1-800-668-5284
Email: MMR-MRM@cnsc-ccsn.gc.ca

  • Location

    • Chalk River (Ontario)
  • Nature of Activity

    • Nuclear Energy
  • Assessment Status

    In progress
  • Start Date

  • Proponent

    Global First Power
  • Authorities

    • Canadian Nuclear Safety Commission
  • Assessment Type

    Environmental assessment under CEAA 2012
  • Reference Number


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.

Nearby assessments

...within 200 kilometres
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