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ENMAX Power Corporation (ENMAX Power) owns and operates ENMAX No. 28 Substation, located at 4941 50 Street SW. ENMAX No. 28 Substation commenced operations over 50 years ago and provides electrical services to residential and commercial properties in Calgary’s Glamorgan area and surrounding communities. 

ENMAX No. 28 Substation holds four transformers of varying vintages. Due to deteriorated asset condition, it has been determined that transformer 28.1TR requires replacement.

ENMAX Power intends to apply to the Alberta Utilities Commission (AUC) for approval to replace transformer 28.1TR within the substation fence line in a location approximately three meters east of the transformer’s current location (the Project). The Project will ensure the continued safe, reliable and efficient operation of ENMAX Power’s electrical system.



ENMAX Power plans to file a Checklist Application with the AUC in late Q2 2023. Subject to receiving approvals and the procurement of materials, construction is anticipated to begin in Q3 2024. Construction is anticipated to take approximately four months with a proposed in-service date in Q4 2024. We encourage stakeholders to consult the webpage for the most up-to-date construction information.​​​


The proposed construction activities will take place at the existing ENMAX No. 28 Substation location. Temporary access accommodations and road closures may be periodically required during construction. ENMAX Power will work with stakeholders and The City of Calgary to minimize the impact to residences, businesses and commuters in the area.


There are no planned power outages impacting customers associated with Project construction.


We are committed to being a responsible corporate neighbour. Our commitment includes providing timely and meaningful engagement with stakeholders about our projects and applications. We provide opportunities for stakeholders, including residents, occupants and landowners, to be informed about our projects and applications, and to engage with us at all stages.


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 Project, please contact:

Phone: 403-514-1471
E-mail: stakeholderrelations@enmax.com
Website: enmax.com/no28substation

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).