ENMAX Downtown Calgary Transmission

ENMAX Downtown Calgary Transmission Reinforcement

Applications for new underground 138-kilovolt transmission in downtown Calgary


The Alberta Utilities Commission is currently considering a project from ENMAX Power Corporation to construct a new underground 138-kilovolt transmission in downtown Calgary. The AUC will be holding a hearing on August 15, 2018 to review the applications and submissions received, as indicated by the notice of hearing issued on May 31, 2018. 

The Alberta Utilities Commission is currently reviewing the applications and submissions received which can be accessed through the eFiling System and going to Proceeding 23157. A notice of application was issued on February 21, 2018, and again on April 4, 2018, asking those that wish to participate in the proceeding to provide their submissions.

The applications propose the construction of a new underground 138-kilovolt transmission line between the existing ENMAX No. 2 Substation located at 3120 Ninth Street S.E. and the existing ENMAX No. 8 Substation located at 903 Fourth Avenue S.W. The applications also propose to install a new 138-kilovolt circuit breaker in the existing control building at the ENMAX No. 8 Substation within the existing fenced area.

More details on the proposed project, including maps, is available from ENMAX Power’s website: Downtown Calgary Transmission Reinforcement Project.

Find out how the Commission has dealt with certain issues in previously issued transmission decisions.


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 403-592-4500.

Documents being considered in this proceeding can be found in the eFiling System (which requires log in). Once you have logged in, enter 23157 in the "go to" section at the top left corner of your screen.

Have your say about a utility project has more information regarding your options for participation.

Proceeding 23157                 Register

Application status: under review

Hearing: August 15 to 17, 2018 commencing at 10 a.m. on August 15, 2018

 Hearing location: Calgary hearing room


Information session: May 1, 2018 at 7 p.m.

Information session location: Sandman Hotel, Calgary City Centre

Information session: April 5, 2018 at 7 p.m.

Information session location: Sandman Hotel, Calgary City Centre


Decision expected: November 2018


AUC contact: Kal Elkassem 
 403-592-4388 or kal.elkassem@auc.ab.ca

ENMAX contact: Stakeholder Relations 
403-514-1471 or stakeholderrelations@enmax.com


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Anyone can access applications and proceeding information through the eFiling System.

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