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

    Pakenham 2103S Substation (2716)

    ATCO Electric Ltd. (ATCO) has applied to the AESO for transmission system access to reliably serve new and growing demand for electricity in the Grande Prairie area. ATCO’s request can be met by the following solution: 

    • Add a substation to be designated as Parkenham 2103S substation, including one 144/25 kilovolt (kV) transformer and one 144 kV circuit breaker.
    • Add one 144 kV transmission line to connect the proposed Parkenham 2103S substation to the existing 144 kV transmission line 7L228 in a T-tap configuration.
    • Add or modify associated equipment as required for the above transmission developments.

    Need Overview

    Latest updates

    • Jun. 18, 2025 Need Overview: Pakenham 2103S Substation