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ENMAX Power Corporation

3.84L Tuxedo Park NW Transmission Line Alteration Project


ENMAX Power Corporation (ENMAX Power) owns and operates transmission line 3.84L (3.84L), which provides electrical services to residential and commercial properties in Calgary’s Tuxedo Park and Balmoral communities and surrounding areas. 3.84L is a 138-kilovolt transmission line that runs north from ENMAX No. 3 Substation (139 17 Avenue NW) to 32 Avenue NE where it runs east and connects into ENMAX No. 13 Substation (867 32 Avenue NE). 

ENMAX Power intends to apply to the Alberta Utilities Commission (AUC) for approval to alter 3.84L by modifying the existing components (post insulators) located on four transmission structures and installing a new wood pole within the existing alignment west of Centre Street N and north of 31 Avenue NW (the Project). The proposed alteration will increase the height of 3.84L, allowing ENMAX Power to comply with clearance requirements between the line and existing facilities in the area. Resolving these clearance violations will ensure the safe, reliable and efficient operation of ENMAX Power’s electrical system.



ENMAX Power plans to file the Checklist Application with the AUC in January 2023. Subject to receiving approvals and the procurement of materials, construction is anticipated to begin as early as Q2 2023 and no later than Q3 2023. At this time, construction is anticipated to take approximately one week with a proposed in-service date by August 2023.  We encourage stakeholders to consult the webpage for the most up-to-date construction information.

Contact Us​​

Your input is valuable to us. We will ensure you get answers to your questions and your ​​concerns are understood. For more information about the proposed Application, please contact:

Phone: 403-514-1471
E-mail: stakeholderrelations@enmax.com
Website: enmax.com/tuxedopark

To learn more about the regulatory process, please contact:​


Phone: 403-310-4282
E-mail: info@auc.ab.ca
Website: www.auc.ab.ca​​​​​​​​​​​​​​​​​​​​​​​​​​​​​

Customers are free to purchase natural gas services or electricity services from a retailer of their choice. For a list of retailers, visit ucahelps.alberta.ca or call 310-4822 (toll free in Alberta).