Dobbs 2061S Substation (2256)

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

• Add a substation, to be designated as Dobbs 2061S, including one 144/25 kilovolt (kV) transformer, two 144 kV capacitor banks, two 144 kV circuit breakers and two 240 kV circuit breakers.
• Add one 144 kV transmission line to connect the proposed Dobbs 2061S substation to the existing 144 kV transmission line 7L22 using a T-tap configuration.
• Add or modify associated equipment as required for the above transmission developments.

Needs Identification Document

Dobbs 2061S Substation Needs Identification Document [Posted: December 2, 2025]

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

Need Overview

• Need for the Dobbs 2061S Substation [Posted: July 23, 2025]