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In December 2016, we received approvals from the Alberta Utilities Commission to install two new 15 kilovolt (kV) circuit breakers and replace an existing 72/14.4 kV transformer at the Victoria substation. This substation is located at 10520 104 Street NW (see map), just north of downtown Edmonton. The equipment will be in-service by July 31, 2017.


​Project Details

We are installing two new 15 kilovolt (kV) circuit breakers to meet the growing demand for power in the central Edmonton area. The new circuit breakers are a larger version of the circuit breakers found in most homes' electrical panels. In addition to the installation of two new circuit breakers, we are replacing an existing 72/14.4 kV transformer. The transformer has reached the end of its life span and needs to be replaced in order to maintain the safe and reliable operation of the Victoria substation. All of the planned work will take place within the existing fenced boundary of the Victoria substation.

Project Timeline and Approval Process

In the fall/winter of 2016, we applied to the Alberta Utilities Commission (AUC) for approval of the two new circuit breakers and for the replacement of the existing transformer. We initiated the work in winter 2017 and will be completed by summer 2017.

What is a substation and transformer?

A substation is a part of the electrical system that connects two or more power lines. The Victoria substation converts electricity from higher voltage power lines (transmission lines) to lower voltages that can be safely distributed to homes and businesses in the area. This conversion is done using a transformer.

What is a breaker?

A breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by overload or a short circuit. Its basic function is to detect a fault condition and interrupt current flow.Victoria-Substation-Project-Map-Lg.jpg

Construction Details

​What can I expect during construction?


You can expect to see activity that is typical to construction, including company / contractor vehicles and equipment in your neighbourhood. All of the planned work will take place within the existing fenced boundary of the Victoria substation.

Construction Noise

The proposed work will create typical noise associated with construction. We will take measures to ensure we comply with the City of Edmonton’s Community Standards Bylaw for Noise Control. If it’s necessary to temporarily exceed acceptable noise levels, we will work with the City of Edmonton to obtain the necessary permits.

Hours of Operation

We anticipate our hours of work for this project to be Monday to Friday from 7:30 a.m. to 5:00 p.m; however, occasional evening and weekend work may be required.

Road Closures

No public lane closures are anticipated; however if a lane closures is necessary, EPCOR will work with the City of Edmonton to coordinate these closures with other activities in the area.

Power Supply

We do not anticipate a planned power service interruption from this work.

Work Space

All work areas will be safe and secure. All construction activities will be in accordance with the City of Edmonton bylaws, occupational health and safety requirements, as well as EPCOR’s health, safety and environmental procedures and guidelines.

Regulatory Process

​About the Alberta Electric Systems Operator (AESO)

The AESO is an independent, not-for-profit organization responsible for the safe, reliable and economic planning and operation of the provincial transmission grid. For more information about why this project is needed, please see the AESO's Need Overview, or visit If you have any questions or concerns about the need for this transmission development you may contact the AESO directly or you can make concerns known to an EPCOR representative who will communicate them to the AESO on your behalf.

For more information about the project need, please contact:

Alberta Electric System Operator
Phone: 1 (888) 866-2969

You can also make your questions or concerns known to an EPCOR representative who will collect your personal information for the purpose of addressing your questions and/or concerns to the AESO. This process may include disclosure of your personal information to the AESO.

About the Alberta Utilities Commission (AUC)

Alberta's electric utilities are regulated by the AUC. The AUC is an independent quasi-judicial agency that ensures that the delivery of Alberta's utility service takes place in a manner that is fair, responsible and in the public's interest. For more information about the AUC, please visit the AUC's website.

For more information about the regulatory process and how you can participate, please contact:

Alberta Utilities Commission (AUC)
Toll-free: 310-0000 
Phone: (780) 427-4903
AUC booklet: Public involvement in a proposed utility development