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ENMAX Power Corporation (ENMAX Power) owns and operates ENMAX No. 162 Substation, located at 13939 68 ST NE. ENMAX No. 162 Substation provides electrical services to commercial and residential properties in Calgary’s Cornerstone and Redstone areas and surrounding communities. ENMAX Power identified two 138 kilovolt (kV) circuit breakers at ENMAX No. 162 Substation that are at risk of exceeding their rated transient recovery voltage (TRV) capability, which can cause equipment failure. As a result, ENMAX Power is proposing to replace two 138 kV circuit breakers with two new 245 kV class circuit breakers (the Project). ENMAX Power intends to apply to the Alberta Utilities Commission (AUC) for approval to replace the circuit breakers, which are located on the south exterior of the substation building within the existing substation fence line. The Project will ensure continued safe, reliable, and efficient operation of ENMAX Power’s electrical system.



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 Q3 2024. Construction is anticipated to take approximately two 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.​


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/No162substation

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).