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RIT-T Primary Equipment Icon
Transformer Replacement
RIT-T Cost icon - 26.27 million
RIT-T Calendar October 2022 Icon


Powerlink has recently published a Project Specification Consultation Report (PSCR) to maintain power transfer capability and reliability of supply at Lilyvale.

Lilyvale Substation, located approximately 50km from Emerald, plays a critical role in the supply of electricity to customers in Queensland’s Central West region, as well as the Blackwater and Bowen Basin mining areas.

Planning studies have confirmed there is a long-term requirement to continue to supply the existing electricity services provided by Lilyvale.

Commissioned over 38 years ago, much of the substation’s primary plant, including two of the original three 132/66 kV transformers, are reaching the end of their technical service lives and are no longer supported by the manufacturer, with limited spares available to rectify a failure if one were to occur.

The proposed preferred option that is considered to satisfy the Regulatory Investment Test for Transmission (RIT-T) involves the replacement of two 132/66kV 80MVA transformers with two 160MVA transformers and the full bay replacement of primary plant in selected bays by October 2022.

The indicative capital cost of the RIT T project for the preferred option is $26.27 million in 2018/19 prices.

Powerlink welcomes submissions from potential proponents who consider they may be able to offer a credible non-network option that is both economically and technically feasible to address the reliability of supply issues identified in the PSCR.

Submissions are due by COB Wednesday 21 August 2019.

Powerlink anticipates the publication of a Project Assessment Conclusions Report in October 2019 containing the final results of the economic assessment.

In the context of engagement activities with consumers and the general community, Powerlink has assessed this project as ‘minor’ on the RIT-T stakeholder engagement matrix.

A copy of the Project Specification Consultation Report is available below.