MENU 54L Transmission Line Rebuild: Canmore Overview Newsletters/Maps/Updates AltaLink’s existing 54L transmission line was constructed in 1943. This transmission line has reached the end of its lifecycle. We are proposing to rebuild this line to ensure that a safe and reliable supply of power is available for years to come. The existing 54L transmission line is a single circuit 138 kilovolt (kV) line that is located in Canmore and Banff National Park. This proposed project involves rebuilding approximately eight kilometres of the line that runs between the Canmore Substation and the boundary of Banff National Park. Planning for the rebuild of the portion of line in the park is in early stages and not part of this project. We hosted a virtual information session on November 3 to answer questions and provide more information about the project. Members of our consultation, environment, electrical effects and siting teams were available to discuss the project during the session. If you were unable to attend, you can view a video of the virtual information session . Project Status: CONSULTATION Anticipated Project Schedule June 2023 Start Construction December 2024 Complete Construction Although we attempt to follow the anticipated project schedule, it is subject to change. We will continue to provide you with updated schedule information as the project progresses. SUBSCRIBE TO UPDATES Privacy / Legal EMPLOYEE LOGIN Contractor Safety Site ©2021 ALTALINK SITE BY MEDIA DOG

MENU Provost to Edgerton and Nilrem to Vermilion (PENV) Transmission Development Overview Newsletters/Maps/Updates AltaLink’s portion of the proposed PENV Transmission Development is located in Flagstaff County, the Municipal District (MD) of Wainwright, the MD of Provost, the County of Minburn and the County of Vermilion River. It includes two separate developments: Provost to Edgerton Approximately 45-60 kilometres of new 240 kilovolt (kV) transmission line from the Hansman Lake Substation located west of the Town of Provost to the Edgerton Substation located north of the Village of Edgerton Modifications at the existing Hansman Lake and Edgerton substations Nilrem to Vermilion Approximately 65-85 kilometres of new 240 kV transmission line from the Nilrem Substation located southeast of the Town of Hardisty to north of the Village of Irma where it will connect to a new line being planned by ATCO Electric Modifications at the existing Nilrem Substation Project Status: APPLICATION Anticipated Project Schedule September 2022 Start Construction Winter 2023 Complete Construction Although we attempt to follow the anticipated project schedule, it is subject to change. We will continue to provide you with updated schedule information as the project progresses. SUBSCRIBE TO UPDATES Privacy / Legal EMPLOYEE LOGIN Contractor Safety Site ©2021 ALTALINK SITE BY MEDIA DOG