Need for Transmission Enhancements in the Banff Area (3147)

FortisAlberta Inc. has applied to the AESO for transmission system access to improve the reliability of the electricity services in the Banff area. FortisAlberta’s request can be met by the following solution:

• Add one 138 kV (kV) transmission line between the existing 85L and 54AL tap points on the existing 138 kV transmission line 54L.
• Add one 138 kV transmission line between the existing West Cascade 177S and Cascade 29S substations.
• Upgrade the West Cascade 177S substation to an in-and-out connection configuration including adding one 138/25 kV transformer and three 138 kV circuit breakers.
• Modify the Cascade 29S substation including adding two 138 kV circuit breakers.
• Add or modify associated equipment as required for the above transmission developments.

Need Overview

• Need for Transmission Enhancements in the Banff Area [Posted: Sep 28, 2026]