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

    Garden Plain Wind Power Project Connection

    TransAlta Corporation (TransAlta) has applied to the Alberta Electric System Operator (AESO) for transmission system access to connect its approved Garden Plain Wind Power Project (Facility) in the Castor area.  TransAlta's request can be met by the following solution:

    • Add one 240 kilovolt (kV) transmission line, to connect the Facility to the existing 240 kV transmission line 9L59 in a T-tap configuration.  Originally, the Facility was proposed to connect using an in-and-out configuration.
    • Add or modify associated equipment as required for the above transmission developments.

    Need overview

    Market Participant Notification

    Notice of Filing

    Latest updates

    • Feb. 23, 2021 Notice of Filing: Garden Plain Wind Power Project Connection
    • Jan. 20, 2021 Market Participant Notification for the Garden Plain Wind Power Project Connection
    • Nov. 3, 2020 Updated Need Overview: Garden Plain Wind Power Project Connection
    • Sep. 4, 2018 Need for the Garden Plain Wind Power Project Connection in the Castor area