Meadowlark substation

Between spring 2026 and early 2031, we will be replacing the three existing transformers with new transformers that will help improve reliability and meet increased demand for power in the area. The new transformers will be replaced in the same location as the existing transformers.

Transformer Replacement Process

• Stage 1: Crews will remove the existing transformer and electrical equipment. Some jackhammering and hydrovac use will be required.
• Stage 2: Crews will demolish and remove the existing transformer base. This will involve extensive jackhammering and hydrovac use to safely dig around existing substation infrastructure. This will generate noticeable noise and vibration at times.
• Stage 3: Crews will work to install the new concrete base and transformer. This will be less noticeable to nearby residents but may still produce some noise at times.
• Stage 4: Once installed, crews will connect the new transformer to the substation and energize it. Most of this work will take place within the substation building and little noise will be generated.

The transformers will be replaced over the next five years, starting in spring 2026 and to be completed by early 2031. Each transformer will take approximately 10 months to replace.

• Transformer 1: In progress from April 2026 to early 2027
• Transformer 2: Replacement planned for 2029
• Transformer 3: Replacement planned for 2030

*Please note that dates and timelines are subject to change based on weather and construction conditions.

Power outages

No power outages are anticipated as part of this work.

Hours of work

Typical work hours will be Monday to Friday, 7:30 a.m. – 5:00 p.m. Occasional evening and weekend work may be required.

For up to one week during each new transformer installation, crews and equipment will be working 24 hours per day to fill the new transformers with oil. This equipment will produce a quiet but constant noise, similar to the hum of a generator. All required permitting will be in place prior to work starting.

Traffic 

Our crews and contractors will park vehicles and equipment within the substation property and along the building when possible. There may be times when they need to use public parking areas along 84 Avenue.

Noise and vibration

Residents will experience noise and vibration during some stages of this work. The most noticeable will be jackhammering to remove existing concrete transformer bases, and hydrovac trucks used to safely dig around existing substation infrastructure. We will comply with the City of Edmonton’s Community Standards Bylaw for Noise Control. If it is necessary to temporarily exceed acceptable noise levels, we will work with the City of Edmonton to obtain the necessary permits.

Safety

Construction for this project will take place within the fenced substation yard. There may be equipment and materials in areas along the substation building. All work areas will be safe and secure. All construction activities will be in accordance with the City of Edmonton bylaws, Occupational Health & Safety requirements, and EPCOR’s strict health, safety and environment procedures and guidelines.

About the Alberta Electric System 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 refer to the AESO Need Overview or visit www.aeso.ca.

If you have any questions or concerns about the need for this project you may contact the AESO directly. 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.

CONTACT AESO

Phone: 1-888-866-2959
Email: stakeholder.relations@aeso.ca
Website: www.aeso.ca

About the Alberta Utilities Commission (AUC)

Alberta’s electrical system is 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. The AUC must approve this project before EPCOR can begin work. For more information about how you can participate in the process, please visit the AUC’s webpage.