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ENMAX Substation No. 1 Replacement Project

Project Overview

ENMAX Power Corporation is replacing the existing ENMAX Substation No. 1, located at 738 9 Avenue SW. Originally built in 1912 to power streetlights and the streetcar rail system in downtown Calgary, the new substation is required to ensure the reliability and integrity of ENMAX’s transmission system, and to ensure the reliable supply of electricity to the City of Calgary.

The new ENMAX Substation No. 1 will be built on a site directly west of the existing substation, on the northwest corner, at the 9 Avenue SW and 7 Street SW. In addition to constructing the new substation, ENMAX will need to excavate sections of 9 Avenue SW, 7 Street SW, and 8 Street SW to relocate, install and replace transmission lines, duct banks and manholes.




Construction Timeline

  • Installation of safety fencing will commence on March 31, 2021
  • Construction is expected to begin in Q3 2021 and will continue until Q4 2024
  • Decommissioning of the existing substation is targeted to be completed by Q2 2025

Once construction dates are determined, impacted stakeholders will receive advance notification and additional information. Communication efforts will continue through all phases of the project to ensure timely updates are provided to those impacted.


Important Documents

Questions?

Email: Power Customer Relations
Phone: 403-514-3990

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).