GSR031: Introducing Competitively Appointed Transmission Owners

This modification aims to introduce the concept of Competitively Appointed Transmission Owners (CATOs) to the SQSS to enable Onshore Network Competition for the design, build and ownership of Onshore Transmission assets.

Modification status:
Implemented - Concluded
Last updated:
08 April 2025
  • Code Administrator Contact: box.sqss@nationalenergyso.com
  • Governance Route: Standard Governance
  • Impacts:  Medium – National Energy System Operator, Transmission Owners and CATOs
Code modification proposed by:
Stephen Baker

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