PSCR: Maintaining Power Transfer Capability and Supply Reliability at Kemmis

Market Network Service Provider
StageProject Specification Consultation Report
ConvenorAEMO NSP
Accepting submissions?Yes
Submissions close22/12/2023

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

Kemmis substation, located approximately 32km north west of Nebo, was established in 2002 to support the load growth arising from the expansion of mining in the northern Bowen Basin and to provide a bulk-supply injection point to the Ergon distribution network.

Power transformer 1 (Transformer 1) was first assembled and energised at an alternate site in 1984 and was subsequently relocated to Kemmis substation in 2003 as part of the substation’s original development.

Having been in-service for almost forty years, a recent condition assessment indicates that Transformer 1 is nearing the end of its service life and is displaying a number of condition-based issues.

Planning studies confirm there is a long-term requirement to continue to supply the existing electricity services provided by Kemmis Substation. Powerlink must therefore take action to avoid the increasing likelihood of unserved energy arising from failure of the ageing transformer at Kemmis, and ensure customers are provided with a reliable and safe supply of electricity.

The proposed preferred option that is considered to satisfy the Regulatory Investment Test for Transmission (RIT-T) involves the replacement of Transformer 1 by 2026.  

The indicative capital cost of the RIT T project for the preferred option is $6.78 million in 2022/23 dollars.

In accordance with the requirements of the National Electricity Rules, a summary of the PSCR is made available on the AEMO website. A copy of the PSCR can be obtained from the Powerlink website on the RIT-T Consultations page or by emailing

Submissions on the PSCR are required by the closing date of 22 December 2023.

Any enquiries in the first instance should be directed to:

Roger Smith
Manager Network and Alternate Solutions
Powerlink Queensland
PO Box 1193

Tel: (+617) 3860 2328

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