Project Spotlight: 54L Transmission Line Rebuild
February 25, 2026 AltaLink’s existing 54L transmission line is a single circuit 138 kilovolt line, approximately 24 kilometres (km) long. The line starts at the Canmore Substation, continues west through the Hamlet of Harvie Heights into Banff National Park, and ends at the Banff Substation. The line was originally constructed in 1941 and has reached…


