Castor North Solar Battery Project Connection (2774)

CastorNorth Solar STL Inc. (CastorNorth Solar) has applied to the AESO for transmission system access to connect its proposed Castor North Solar Battery (Facility) in the Castor area. CastorNorth Solar’s request can be met by the following solution:

• Add one substation, to be designated as Vander 1414S, including three 240 kilovolt (kV) circuit breakers.
• Connect the proposed Vander 1414S substation to the existing 240 kV transmission line 9L59 using an in-and-out configuration.
• Add one 240 kV transmission line to connect the Facility to the Vander 1414S substation.
• Add or modify associated equipment as required for the above transmission developments.

Market Participant Notification

The Facility will be connected in the AESO’s Central Planning Region. Market Participants wishing to understand curtailment risk can find congestion information for scenarios that include the Facility in the Central Region Congestion Assessment [Posted: April 22, 2026].

Need Overview

• Need for the Castor North Solar Battery Project Connection [Posted: January 28, 2026]