Final Project Assesment Report – Summary
Regulatory Investment Test – Distribution – November 2024
AusNet initiated this Regulatory Investment Test for Distribution (RIT-D) to investigate and evaluate options to address the constraints in the MWTS East sub-transmission network which are restricting new renewable generation connections.
The Options Screening Report (OSR), which represents the first step in the RIT-D process in accordance with clause 5.17 of the National Electricity Rules (NER) and section 4.2 of the RIT-D Application Guidelines was published in January 2024. The Draft Project Assessment Report (DPAR), the second stage of the RIT-D process, was published in July 2024 providing information about the draft conclusions of the RIT-D. No submissions were received during the RIT-D DPAR consultation phase.
This report, the Final Project Assessment Report (FPAR) is the final stage of the RIT-D consultation process, which confirms the findings in the DPAR
The preferred solution is to augment the MWTS – TGN No.1 and No.2 66kV lines with 19/4.75 AAC conductor to increase the overall summer rating of MWTS – TGN to 202 MVA. The estimated capital cost of the preferred option is $7.05 million.
In accordance with clause 5.17.5(c) of the NER, within 30 days of the date of publication of this FPAR, any party disputing the conclusion made in this FPAR should give notice of the dispute in writing setting out the grounds for the dispute (the dispute notice) to the AER with a copy of the dispute notice to AusNet. If there are no dispute notices within 30 days of the date of publication of this FPAR, AusNet expects to implement the preferred option.