Radisson to Henday transmission line (R44H)

Project overview

To maintain the reliability of Manitoba’s electricity system, we are planning a new 230-kilovolt transmission line to support the province’s aging high-voltage direct current (HVDC) infrastructure.

Known as the Radisson to Henday transmission line (R44H), the proposed line will run approximately 42 kilometres between the Radisson and Henday Converter Stations. It will be built within an existing right-of-way corridor and include electrical connections at both stations.

This project addresses the growing limitations of aging infrastructure and the need for increased transmission capacity between northern converter stations. By reinforcing this critical segment of the HVDC system, the R44H line is expected to enhance overall system reliability and reduce the risk of service interruptions.

How to participate

We thank everyone who provided their feedback and participated in the engagement process for this project. While our formal engagement process to inform the environmental assessment has ended, we remain open and responsive to any questions or concerns that may arise through the project's construction and operation. The project webpage will continue to be updated as the project progresses through project construction.

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Timeline

• engagement: May – September 2023
• file environmental assessment report for regulatory review: December 2023
• licence received: May 2025
• construction start: summer 2025
• target in-service date: spring 2026

This timeline is subject to change.

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Resources

Additional information on the project:

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