Armistead 2102S Substation (2741)

ATCO Electric Ltd. (ATCO) has applied to the AESO for transmission system access to reliably serve growing demand for electricity in the Fort McMurray area. ATCO’s request can be met by the following solution:

• Add a substation, designated as Armistead 2102S, including two 240/25 kilovolt (kV) transformers, and two 240 kV circuit breakers.
• Add one 240 kV transmission line to connect the proposed Armistead 2102S substation to the existing 240 kV transmission line 9L74 in a T-tap configuration.
• Add or modify associated equipment as required for the above transmission developments.

Needs Identification Document

Armistead 2102S Substation Needs Identification Document [Posted: November 3, 2025]

Appendix A - Connection Assessment
Appendix B - Capital Cost Estimates
Appendix C - AESO PIP
Appendix D - DFO Distribution Deficiency Report

Need Overview

• Need for Transmission Enhancements in the Fort McMurray area [Posted: May 6, 2025]