PADR: Maintaining reliable 330/220 kV transformation network services at South Morang Terminal Station

25/02/2025
Market Network Service Provider
StageProject Assessment Draft Report
ConvenorAEMO NSP
Initiated25/02/2025
Accepting submissions?Yes
Submissions close11/04/2025

Project Assessment Draft Report – Summary

Regulatory Investment Test – Transmission – February 2025


AusNet Services is undertaking this Regulatory Investment Test for Transmission (RIT-T) to evaluate options to maintain reliable 330/220 kV transformation network services at South Morang Terminal Station (SMTS).

The Project Specification Consultation Report (PSCR), which represents the first step in the RIT-T process in accordance with clause 5.16 of the National Electricity Rules (NER) and section 4.2 of the RIT-T Application Guidelines  was published in August 2024.  This report, the Project Assessment Draft Report (PADR), is the second stage of the RIT-T and provides information about the draft conclusions of the RIT-T.

No non-network proposals were received during the RIT-T PSCR consultation. 

The preferred option to address the asset failure risk at SMTS is replacement of the H1 and H2 transformers with an in-service and a hot spare transformer by 2029.

AusNet Services welcomes written submissions on the issues and the credible options presented in this PADR.  Submissions should be emailed to rittconsultations@ausnetservices.com.au on or before 11 April 2025.  In the subject field, please reference ‘RIT-T – Maintaining reliable 330/220 kV transformation network services at SMTS’.

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