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

ENMAX No. 7 Substation Upgrades

Project Overview

ENMAX Power Corporation (ENMAX) is replacing two 138-25kV 30 MVA transformers with two 30/40/50 MVA transformers and add a 138 kV circuit breaker at ENMAX No. 7 Substation located in SW Calgary, to maintain restoration capability and accommodate load growth. The Substation is located at 718 – 101 Street SW, Calgary.

Please see the Alberta Electric System Operator (AESO) Need Overview document included in this project package for more information regarding the need for these substation upgrades.

Important Documents

Project status

ENMAX filed an application with the Alberta Utilities Commission (AUC) for the proposed work on October 23, 2017. The AUC issued a decision approving the project and new permits and licenses on November 22, 2017. Construction is scheduled to start September 2018 with completion by December 2018.


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).

Enmax Live Chat*