AusNet Services undertook this Regulatory Investment Test for Transmission (RIT-T) to evaluate options to maintain supply reliability in north-eastern metropolitan Melbourne.
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 December 2019; and the succeeding Project Assessment Draft Report (PADR) was published in September 2020. Publication of this Project Assessment Conclusions Report (PACR) represents the third and final step in the RIT-T process.
No non-network proposals were received during the RIT-T PSCR consultation phase. There has also not been any submission since the publication of PADR.
AusNet Services concludes that replacement of the two 220/66 kV transformers, selected 66 kV circuit breakers and associated primary and secondary assets in a single integrated project by 2024/25 is the most economical solution.