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​On September 28, 2020, EPCOR received approval from the AUC to modify the Garneau Substation, located at 11123 – 85 Avenue (Decision 25873- D01-2020). The modifications include a new building in which new indoor electrical equipment, a switchgear, will be enclosed. Please refer the October 2020 - Project Update.

​Project overview

In April 2020, a project package was sent to landowners, occupants and residents describing the proposed project and the AUC regulatory process. On September 28, 2020, EPCOR received approval from the AUC to proceed with the Garneau Substation New Building and Switchgear Project (Decision 23943-D01-2020).

New indoor electrical equipment, a switchgear, is needed at the existing Garneau substation to maintain reliability and better meet demand for power in the area.

To accommodate the new equipment, we are proposing to construct a new substation building where the EPCOR-owned house exists directly west of the substation. The removal of this house, and rezoning of the lot, is planned as part of the Upgrades to the Garneau Substation Project.

​The new building

To suit the surrounding area, the new building will look similar to other single family residential homes in the neighbourhood. The illustration on under Maps and renderings shows the proposed new building. The dimensions of the new building will be approximately 22 metres long by 10 metres wide, which is similar to the EPCOR-owned house. The walls will be made out of concrete, closely matching existing buildings within the neighbourhood.

Explaining switchgears

A switchgear is a part of the electrical system that serves to split electricity from a transformer to multiple distribution cables. This is similar to your house electrical panel in that it takes the incoming power and splits it amongst the many areas of your house. The switchgear performs the same function for a grouping of residential, industrial or commercial customers.

AUC-Approved Upgrades to Garneau Substation

On March 12, 2020, EPCOR received approval from the AUC to proceed with the Upgrades to the Garneau Substation Project as part of the West Edmonton Transmission Upgrade Project (Decision 23943-D01-2020). In September 2020, EPCOR notified landowners, occupants and residents directly adjacent to the Garneau Substation of the construction commencing this fall for this project. Removal of the EPCOR-owned house that is located directly west of the substation and expansion of the substation yard are currently underway.


These upgrades entail the replacement of the three existing 72/15 kV transformers in the Garneau Substation with three new 72/15 kV transformers of higher capacity. Two of the transformers will be replaced in roughly the same location as the existing transformers, while the third will be moved further southwest to allow for safe access to the equipment during construction and for maintenance. To accommodate the relocation of the new transformer, the substation yard will be expanded. This will occur when the EPCOR-owned house directly west of the substation is removed. The new building will form part of the fence portion on the west side.

To improve security around the substation, we will replace the existing six-foot fence with a new eight-foot fence.

Project timeline

​Construction is expected to begin in November 2020 to build the new building and install the new switchgear.  The new building is expected to be finished by end of December 2021 and the switchgear is expected to be in service by winter 2023.

The work for the Garneau Substation Upgrades Project is currently underway.

Construction details
Construction Noise

The 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 Construction
Typical hours of construction will be Monday to Friday from 7:30 a.m. to 5:00 p.m.. If required, these hours may be extended, and construction may occur on Saturdays and Sundays from 9:00 a.m. to 6:00 p.m.

Traffic Accommodations
Access along 85 Avenue between 112 Street and 111 Street may be limited during some stages of construction. Temporary lane closures to accommodate the movement of equipment in and out of the substation site may be required. Flag people will be used to detour traffic and pedestrians around the work site during these times.

Power Supply
No interruptions to power services are anticipated as a result of this project.

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 and our strict health, safety and environment program. We do not anticipate any adverse environmental impacts associated with this project.

Construction work and COVID-19
We're closely monitoring the situation related to the COVID-19 outbreak. We have plans in place to manage disruptions or emergencies and we are committed to providing the services our communities count on. Protocols have been put in place for our employees while performing essential work to protect the health of our teams and our customers. We also request you take precautionary measures by maintaining a safe, two-metre distance from our crews and contractors.

Maps and renderings

​Artist rendering of new building

This is one of the designs discussed with the community during consultation.


Garneau Substation site layout


Contact us

For updated information on construction activities and schedules for this project:

Phone: (780) 412-4040