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This project involves an above-ground 72-kV transmission line from the Poundmaker substation to the Meadowlark substation.

Project update

​At this point we are in our consultation phase of the project. We are contacting those who own, or are occupants, of property directly across from the proposed above-ground transmission line route options for their feedback. For project input or questions, please contact us.

Project details

Project notice corrections

We have a couple of corrections to the project notice we sent out in September 2016.

  1. In the notice we specified a 15 metre right-of-way for the proposed above-ground transmission line. We would only need a 15 metre right-of- way for the portion of route option A that goes through the transportation utility corridor of the Anthony Henday. In other locations, we would be within City of Edmonton road allowance and would not need a utility right-of-way.

  2. The Meadowlark substation will require two 72 kilovolt circuit breaks, not one circuit breaker as previously stated in the project notice.

Project overview

This upgrade will allow us to improve the reliability of our transmission system and reduce the risk of outages to our customers. As demand for power continues to grow within Edmonton, so does the need for transmission development such as this one.
To meet this demand for power, we are proposing to:

  • Construct a 72 kV above-ground line from the Poundmaker substation to the Meadowlark substation
  • Add one 240 kV/72 kV transformer, one 240 kV circuit breaker, one 72 kV circuit breaker and associated switches and equipment to the Poundmaker substation
  • Add two 72 kV circuit breaker and, associated switches and equipment to the Meadowlark substation

Poundmaker Substation

The existing Poundmaker substation is located at 18944 105 Avenue. If approved, new equipment will be added to the substation including:

  • one 240 kV/72 kV transformer
  • one 240 kV circuit breaker
  • one 72 kV circuit breaker
  • associated switches and equipment

In order to install the new equipment the fence will need to be expanded by approximately 25 metres (m) by 18 m on the west side of the substation. The new section of fence will match the existing substation fence.


Meadowlark Substation

The existing Meadowlark substation is located at 15404 84 Avenue. If approved, new equipment will be added to the substation including:

  • Two 72 kV circuit breaker and associated disconnect switches.

To contain the new equipment, a new 5 m by 12 m building will be constructed within the existing fenced boundary of the substation.


Proposed above-ground route options

We have developed two above-ground route options to get from the Poundmaker substation to the Meadowlark substation. These route options were selected because they generally try to follow existing roadways and existing power line alignments, as well as use areas that are designated areas for powerline development such as transportation utility corridors (e.g. Anthony Henday Drive).

In the upcoming weeks we will be talking to residents, homeowners and businesses to get their feedback on the route options. This feedback will be included in our application to the AUC. The AUC will review the application and decide which route to approve. Only one route will be built if the project is approved by the AUC.

WETUPMap_notice_1.jpgDuring the process of determining potential routes, we take the following factors into consideration in an effort to find routes with the lowest overall impact:

  • Residential
  • Environmental
  • Electrical
  • Cost
  • Visual
  • Special constraints

What it will look like

​If approved, the power poles used for the transmission line will be either made out of wood or fiberglass and will range in height from 18 metres to 24 metres. A portion of the proposed route follows an existing distribution line (shown as the dotted line on the map). This will involve removing the current poles and installing new poles that have the transmission line on top and the distribution line beneath it. 




We are currently in our consultation phase of the project and are looking for feedback on our route options.

Once feedback is received and assessed, we will file an application to the AUC for approval. This application will include a preferred and alternate route for the transmission line. The final decision on routing will be made by the AUC. Only one of the route options will be built if this project is approved by the AUC.

Public consultation

Started in Fall 2016 and will continue throughout the project

Project update

Fall/Winter 2017

File application with the AUC

Winter/Spring 2018

If approved, construction begins

Summer 2018

Project completed

Winter 2019

Construction details

​​What to expect from construction

At this stage of the project, we can only speak about construction impacts in general. If the project is approved, the AUC will select a route to construct at which time we will develop detailed construction plans. We will update our webpage with information as it becomes available.


You can expect to see activity that is typical to construction, including company/contractor vehicles and equipment in your neighbourhood.

Construction noise

Work will create typical noise associated with construction. We'll take measures to ensure we comply with the City of Edmonton’s Community Standards Bylaw for Noise Control.

Hours of operation

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

Work space

Work space 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 environment procedures and guidelines.

Regulatory process

Next steps

Once we have received input from the public, EPCOR will make any needed alterations to the route options and send out a project update. We will then submit a facility application to the AUC that will include both a preferred and alternative route for the transmission line between the Poundmaker and Meadowlark substations and the required substation alterations.

This project requires two regulatory approvals from the AUC: approval of the Alberta Electricity System Operator’s Needs Identification Document (NID) and approval of EPCOR’s facility application. For more information on the AUC’s regulatory process visit

Application process

The project requires two regulatory approvals from the Alberta Utilities Commission (AUC); approval of the AESO’s Needs Identification Document (NID) and approval of EPCOR’s Facility Application.

The AESO is required to submit a Needs Identification Document (NID) to the AUC for review and approval outlining the need for the transmission upgrades and how to technically meet that need. For more information see the AESO’s Need Overview Document.

The TFO is required to submit a Facility Application (FA) to the AUC for review and approval describing how it proposes to meet the requirements for the transmission project as identified in the NID.

EPCOR is responsible for determining route options and placement of required infrastructure to meet the requirements identified by the AESO. EPCOR will explore various alternatives to locate transmission facilities, taking into consideration public input, environment, routing, costs, and project components.

The AUC reviews both applications and will ensure interested parties have an opportunity to provide feedback and input on the applications before a decision is made.

For more information on the AUC process, see the AUC’s brochure on Public Involvement in a proposed utility development here


About the 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.

More information

For more information about the project need, please contact:

Alberta Electric System Operator (AESO)
Phone: 1-888-866-2959

About the Alberta Utilities Commission (AUC)

The AUC is an independent, quasi-judicial agency of the province of Alberta. The AUC is responsible to ensure that the delivery of Alberta's utility service takes place in the public interest. The AUC must approve this project before upgrades to the system can begin. For more information about how you can participate in the process, please visit the AUC 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 


Other information

Transmission lines/substations and property values

Do transmission lines and substations have an effect on property values? It’s a fair question and one often asked – unfortunately there’s no simple answer. Many factors can affect market prices of real estate including market trends, proximity to existing, new and planned developments, schools transportation and other amenities. The existence of transmission infrastructure is only one factor out of many that would be considered by a prospective buyer – some factors are more or less important to different buyers.

Electric and Magnetic Fields (EMF)

We recognize that people are concerned about EMF, which exist everywhere there is electricity. We treat these concerns very seriously and are guided by EMF research that is compiled and reviewed by national and international health agencies, including Health Canada and the World Health Organization. We provide information to people who have questions to keep them informed about the status of EMF research and typical levels of EMF from various sources.

After more than 40 years of research that includes thousands of studies and numerous reviews by health agencies, Health Canada and the World Health Organization have not concluded that typical exposures to EMF from above-ground power lines have any known health consequences.

Electrical definitions

​Transmission line

Transmission lines carry high voltage electricity across long distances to substations, where the power is then stepped down to lower voltages that can be used in homes and businesses. Transmission lines voltages range from 72 kilovolts (72,000 volts) to 500 kilovolts (500,000 volts).

Distribution line

Once voltages are stepped down (e.g. reduced) at a substation, the electricity cruises along distribution wires. These lines are the ones that leave a substation and make their way to a home or business. Distribution voltages are lower, ranging from 120 volts to 25,000 volts.


Substations are where electricity is stepped down from high voltage electricity to lower voltage that can be used in our homes and businesses. Substations can include equipment such as transformers, circuit breakers, current limiting equipment and communications equipment.

Volt (V)

A volt is a unit of electric potential that specifies the amount of electric force carried through a power line.

Kilovolt (KV)

A kilovolt is a thousand volts.

Circuit breaker

A circuit breaker is an automatic switch that protects electrical equipment from overloading. A breaker is an electrical switch designed to protect an electrical circuit from damage caused by overload or a short circuit. When a breaker detects a problem, it trips and immediately stops electrical flow.

Utility right-of-way

Utility right-of-ways are designated areas for utilities including power poles, underground powerlines, water, swear, telephone, gas and telecommunication lines. Most utility right-of-ways in Edmonton are located on city property.

Transportation utility corridor (TUC)

A transportation utility corridor is an area designated for uses such as ring road systems, major power lines, pipelines and municipal utilities. The ring road system in Edmonton includes Anthony Henday Drive and Highway 216. For more information regarding Edmonton’s Transportation/Utility Corridors download Alberta Infrastructure’s Information Sheet.