Your browser is no longer supported

To get the best experience with www.aeso.ca, we suggest using a newer version of Internet Explorer/Edge, or using another supported browser such as Google Chrome.

ETS users may continue to log in using Internet Explorer 9 using the upper right hand link marked ETS Login.

    View all projects

    Mowat 2033S Substation

    ATCO Electric Ltd. (ATCO) has applied to the Alberta Electric System Operator for transmission system access to serve new industrial loads in the Spirit River area. ATCO’s request can be met by the following solution:

    • Add one 144 kV circuit breaker to the Rycroft 730S substation;

    • Build the Mowat 2033S substation with a 144/25 kV transformer, two 144 kV circuit breakers, two 144 kV capacitor banks, and six 25 kV circuit breakers; and

    • Build approximately 40 m of 144 kV transmission line to connect the Mowat 2033S substation to transmission line 7L10.

    Need overview

    Update to Need for the Mowat 2033S Substation in the Town of Spirit River area [Posted: May 9, 2016]

    Need for the Mowat 2033S Substation in the Town of Spirit River area [Posted: November 30, 2015]

    Notification of regulatory filing advertisement

    Notification of Regulatory Filing [Posted: June 15, 2016]

    Needs Identification Document

    Mowat 2033S Substation Needs Identification Document [Posted: July 4, 2016]

    Contact us

    We appreciate your views, both on the need for transmission system development and proposed transmission plans. If you have any questions or comments, please contact us directly.

    AESO Stakeholder Relations
    stakeholder.relations@aeso.ca
    1-888-866-2959