We use cookies and other web tracking technologies to improve our services, identify areas for repair, better understand what our customers use and don't use, and for marketing services. To learn more, visit our Privacy Commitment.
Skip to main content

No. 37 Substation Time Extension for Capacity Upgrade Project​


ENMAX Power Corporation (ENMAX Power) owns and operates ENMAX No. 37 Substation located at 5099 68 Street SE. ENMAX No. 37 Substation commenced operations over 50 years ago and provides electrical services to residential and commercial properties in Calgary’s Erin Woods community, Foothills Industrial and surrounding areas.

In 2022, ENMAX Power was granted approval by the Alberta Utilities Commission (AUC), among other things, to replace an existing transformer at ENMAX No. 37 Substation with a higher capacity transformer, construct a new building and extend the fence line (Project).

The original approval required construction of the Project to be completed in 2024; however, procurement and engineering design timelines will delay completion of the Project. ENMAX Power, therefore, intends to apply to the AUC for a time extension until 2025.

For reference of the Project, the Decision Report (27564-D01-2022) is available to the public on the AUC website: https://www2.auc.ab.ca.​


ENMAX Power plans to file a Checklist Application with the AUC in Q4 2023. Subject to receiving approvals and the procurement of materials, construction is anticipated to begin in Q4 2023. Construction is anticipated to take approximately 20 months with a proposed in-service date in Q2 2025.

Map of area - ​ View/Download map pdf​​​


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/sub37timeextension

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).