Southeast Substation Safety Enhancement Project

Project Overview

ENMAX Power Corporation (ENMAX Power) owns and operates ENMAX No. 32 Substation which is located along the banks of the Bow River near the intersection of Deerfoot Trail and Bow Bottom Trail in Southeast Calgary. A portion of the outdoor electrical equipment (switchgear) poses an operational safety risk to our crews and this risk needs to be addressed. Additionally, No. 32 Substation is located in the Bow River floodway and was completely isolated by water during the 2013 Calgary flood event. ENMAX will be proceeding with construction to address the safety concern and ensure the continued reliability of our transmission system.

On August 30, 2022, the Alberta Utilities Commission (AUC) approved the option to replace the equipment at No. 32 Substation and to implement the 350-year flood mitigation measures (bank armouring and self-launching apron design).

Project Timeline

• Project initiation – early 2019
  
• AUC application submission – October 2020
  
• AUC application resubmission – March 2022
  
• AUC approval – August 2022
  
• Design and procurement phase – 2022 – 2025​
  
• Construction start – Q3 2023
  
• Targeted construction complete – Q2 2026
  

What to expect during construction

• Noise
  
• Debris
  
• Vibration
  
• Heavy machinery
  
• ENMAX and contractor personnel and vehicles
  
• Bike path closures
  

ENMAX and contractors will be regularly maintaining the site to mitigate impacts like dirt and debris.

Important Documents

• 21453233 - SE Substation Safety Enhancement Construction Notice - June 26, 2023
  
• 21453233 - SE Substation Safety Enhancement Project Notice - May 25, 2023
  
• ENMAX Cover Letter
  
• ENMAX Newsletter
  
• AUC brochure
  
• Electric and Magnetic Field (EMF) Information
  
• Electricity 101
  
• Southeast Substation Project Filing Letter
  
• Sub 32 Flood Mitigation Project - Public Notice