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    Grist Lake 190S Substation

    The Alberta Electric System Operator (AESO) advises you of its intent to file an application with the Alberta Utilities Commission (AUC) to amend the Grist Lake 190S Substation Needs Identification Document Approval No. U2014-166 (Grist Lake NID Approval).

    The Grist Lake NID Approval includes the new Grist Lake 190S substation with three 138/25 kV transformers and two new 138 kV transmission lines connecting the Grist Lake 190S substation to the transmission system. These transmission facilities were proposed for 2016 in response to a transmission system access request from FortisAlberta Inc.

    FortisAlberta Inc. has requested to delay development of the Grist Lake 190S substation and two 138 kV transmission lines until 2019. The number of transformers at the substation will also change from three to two 138/25 kV transformers.

    Need overview

    Need for the Grist Lake 190S Substation in the Christina Lake Area [Posted: August 15, 2016]

    Notification of regulatory filing advertisement

    Need for the Grist Lake 190S Substation in the Christina Lake Area [Posted: November 24, 2016]

    Needs Identification Document

    Application to Amend Alberta Utilities Commission Needs Identification Approval Document Approval No. U2014-166 (Grist Lake NID Approval) [Posted: December 16, 2016]

    Appendix A - TFO Capital Cost Estimates
    Appendix B - AESO PIP Summary
    Appendix C - Info Re Rule 007 Section 6.2.1 NID 15(2)

    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

    Latest updates

    • Nov. 24, 2016 Grist Lake 190S Substation - Notice of NID Filing
    • Aug. 16, 2016 Amendment to the Grist Lake 190S Substation Needs Identification Document Approval No. U2014-166