Powerlink has recently published a ‘Project Specification Consultation Report’ (PSCR) to maintain power transfer capability and reliability of supply at Redbank Plains Substation.
Redbank Plains Substation, located approximately 27km southwest of the Brisbane CBD, was established in 1985 as a bulk-supply injection point to the Energex (part of the Energy Queensland group) distribution network. It also provides additional switching capability for alternative power transfer between Blackstone and Goodna.
Commissioned over 35 years ago, a recent condition assessment indicates that both power transformers, along with a number of primary plant items are nearing the end of their respective service lives and are displaying a number of condition-based issues.
Planning studies have confirmed there is a long-term requirement to continue to supply the existing electricity services provided by Redbank Plains Substation. Powerlink must therefore take action to avoid the increasing likelihood of unserved energy arising from failure of the ageing transformers and primary plant at Redbank Plains, 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 refit of the two 110/11kV 25MVA transformers to extend their service life and the replacement of all feeder bay and bus bay primary plant by 2025.
The indicative capital cost of the RIT T project for the preferred option is $8.45 million in 2020/21 dollars.
In accordance with the requirements of the 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 networkassessments@powerlink.com.au.
Submissions on the PSCR are required by the closing date of 11 July 2022
Any enquiries in the first instance should be directed to:
Roger Smith
Manager Network and Alternate Solutions
Powerlink Queensland
PO Box 1193
VIRGINIA, QLD 4014
Tel: (+617) 3860 2328