Medicine Hat Southwest Substation (MHSS)

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What is the Project:

The City is proposing a new substation to accommodate the growth and increasing electrical needs in the southwest area of the city and the city’s electric service territory.

Why do we need this project:

The project is needed to address the increasing demand for electricity and to support the development of important community infrastructure, such as housing, schools, recreation facilities, and commercial establishments, which would otherwise be limited without enhancements to the electrical system in the south.

How can you get involved?



If you are an owner or occupant on lands identified as potentially suitable for hosting a substation or lands adjacent to one of the areas identified as potentially suitable, or believe you may be impacted by the Project, the MHSS team would like to speak with you.

If you have not yet received information about the Project by mail or in-person please call 1-888-285-6181 or email SWSubstation@maskwaenv.com.

What is the Project:

The City is proposing a new substation to accommodate the growth and increasing electrical needs in the southwest area of the city and the city’s electric service territory.

Why do we need this project:

The project is needed to address the increasing demand for electricity and to support the development of important community infrastructure, such as housing, schools, recreation facilities, and commercial establishments, which would otherwise be limited without enhancements to the electrical system in the south.

How can you get involved?



If you are an owner or occupant on lands identified as potentially suitable for hosting a substation or lands adjacent to one of the areas identified as potentially suitable, or believe you may be impacted by the Project, the MHSS team would like to speak with you.

If you have not yet received information about the Project by mail or in-person please call 1-888-285-6181 or email SWSubstation@maskwaenv.com.

  • Project Update : July 2024

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    The City of Medicine Hat hopes that everyone is staying cool and enjoying their summer!

    The Project team continues to review the potential location for the proposed substation and is reviewing how the substation could connect to the electrical grid.

    We anticipate presenting our decision making process for site determination, next steps, and the electrical connection options later this summer. We will be out in the community to continue sharing information and collecting feedback on project design, construction, and operation of this proposed facility.

    We will keep you informed as we move towards narrowing site options.


  • Stage 1: Determining possible locations

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    When determining suitable substation locations, many factors are considered. For the Project, a site selection criterion was developed based on the requirements outlined in Alberta Utilities Commission (AUC) Rule 007: Applications for Power Plants, Substations, Transmission Lines, Industrial System Designations, Hydro Developments and Gas Utility Pipelines (2022). To find suitable areas of interest, and in consideration of the siting criteria, desktop mapping, and siting analysis considered the following factors:

    March 26, 2024: In response to common siting questions and comments received throughout Stage 1 engagement activities, additional information regarding the initial site identification criteria considered for the MHSS project has been added under Project Materials.

  • Stage 1: Potential Substation Locations

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  • Project Update: Spring 2024

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    Additional material has been added to the MHSS Project website:

    • A copy of the presentation delivered at landowner workshops held in March 2024 is now under Project Materials
    • Response to two action items / follow up requests shared at Workshop #2 is here. At the request of participants, this response provides a more detailed description of the initial site identification process.
Page last updated: 22 Jul 2024, 09:23 AM