ENMAX No. 1 Substation Replacement Project

ENMAX No. 1 Substatio​n Replacement Project

The AUC is reviewing an application to replace a substation in downtown Calgary



The AUC has approved an application from ENMAX Power Corporation for approval to construct and operate a new No. 1 Substation​ in downtown Calgary. The AUC issued Decision 25206-D01-2021 approving the project on January 18, 2021.

ENMAX Power Corporation has been approved to alter transmission lines 138-1.80L, 138-1.81L, 138-1.82L, 138-1.83L, 138.84L and 138-1.85L, and to decommission the existing EN 1S Substation. The existing transmission lines connected to the existing substation will be altered to connect to the new substation. The new No. 1 Substation will be located on the north side of Ninth Avenue Southwest between Seventh and Eighth Street Southwest.

The AUC held a virtual oral session for argument and reply for this proceeding on October 23, 2020. A virtual hearing that was originally scheduled to commence on September 23, 2020, as well as the revised virtual hearing​ scheduled to begin on October 14, we're each cancelled​. On October 15, the AUC issued a confi​rmation of no virtual hearing process. ​

A notice of application for this proceeding was initially issued on January 14, 2020.​​


The eFiling System​

The eFiling System should be accessed to view the applications and the other documents the AUC will be considering in this proceeding. The system is also used to file submissions and evidence to participate in the proceeding.

To create an account, select "New account" and follow the steps to create a user ID and password. If you have any questions about how to use the system please contact us at info@auc.ab.ca or 310-4AUC.

Documents ​considered in this proceeding can be found in the eFiling System (which requires log in). Once you have logged in, enter 25206 in the "go to" section at the top left corner of your screen. 

Proceeding 25206               Register

Application status: completed

 Virtual oral session for argument and reply: October 23, 2020

Location: Online we​binar​​

Decision: 25206-D01-2021, issued January 18, 2021​​​


AUC contact: Kloria Wen
 403-592-4367 or kloria.wen@auc.ab.ca​


 ENMAX Power Corporation contact: Jay Dyson ​403-514-2922 or jdyson@enmax.com​​

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