Powerlink Queensland - Project Assessment Conclusions Report - Maintaining reliability of supply to the Rockhampton area
In this section
In this section
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- TransGrid & Powerlink Project Assessment Draft Report: Expanding NSW-QLD Transmission Transfer Capacity
- TransGrid Project Assessment Conclusions Report: Maintaining a reliable Upper Tumut substation
- SA Power Networks release new version of their Demand Side Engagement Document
- Douglas Shire Non-network options report
- TransGrid Project Assessment Conclusions Report: Managing safety and environmental risks from corrosion on Line 959/92Z
- Powerlink Queensland - Summary of PADR - Maintaining reliability of supply between Clare South and Townsville South
- ElectraNet Project Specification Consultation Report Managing the risk of protection relay failure
- Powerlink Queensland Project Assessment Conclusions Report Maintaining reliability of supply at Kamerunga Substation
- ElectraNet Project Specification Consultation Report - Managing the Risk of Isolator Failure Project Regulatory Investment Test for Transmission
- TransGrid Publishes TAPR 2019
- Powerlink Queensland Project Specification Consultation Report Addressing the secondary systems condition risks at Kemmis
- Powerlink Queensland Project Specification Consultation Report Addressing the secondary systems condition risks at Mudgeeraba
- Reinforcing the New South Wales Southern Shared Network to increase transfer capacity to the state’s demand centres
- Managing the Sydney East substation’s asset risks
- Maintaining compliance with performance standards applicable to Wagga 330 kV substation secondary systems
- Maintaining compliance with performance standards applicable to Deniliquin substation secondary systems
- Powerlink Queensland - Project Specification Consultation Report - Maintaining reliability of supply in the Blackwater area
- Powerlink Queensland Project Specification Consultation Report - Maintaining power transfer capability and reliability of supply at Lilyvale
- Maintaining compliance with performance standards applicable to Haymarket substation secondary systems
Powerlink has recently published a ‘Project Assessment Conclusions Report’ (PACR) to maintain reliability of supply in the Rockhampton area.
The Egans Hill to Rockhampton transmission line is a 132kV double circuit line commissioned in 1963 that forms part of the connection between Powerlink’s Bouldercombe and Rockhampton substations. It provides a critical link into the Rockhampton Substation, which is a major injection point for the Rockhampton and surrounding area distribution network.
The transmission line between Egans Hill and Rockhampton is nearing the end of its technical service life, with the majority of structures on the transmission line exhibiting signs of degradation. Specifically, loss of the galvanising on members, the onset of early corrosion to nuts, bolts and hardware, and the decay of grillage foundations, all increase the risk of mechanical failure of components of the transmission line, particularly in storm and cyclonic conditions.
In accordance with the Regulatory Investment Test for Transmission (RIT-T), Powerlink published a Project Specification Consultation Report (PSCR) in September 2018, followed by the publication of the Project Assessment Draft Report (PADR) in January 2019. The PADR identified the preferred option, a staged life extension of the line, with Stage 1 to be completed by December 2020 and Stage 2 by December 2030, with a full rebuild by 2044. Both the PSCR and PADR invited submissions on credible non-network options, which could address the identified need. There were no submissions received in response to either the PSCR or PADR.
The outcomes of the economic analysis contained in the PACR remain unchanged from those published in the PADR. Consequently, the draft recommendation to implement the preferred option has been adopted without change as the final recommendation in the PACR.
The RIT-T project involves refitting and painting the northern section of the line and refitting without painting the southern section of the line by December 2020, at an estimated capital cost of $9.98 million in 2018/19 prices. Powerlink is the proponent of the proposed network project.
In accordance with the requirements of the Rules, a summary of the PACR has been made available on AEMO’s website. A copy of the PACR can be obtained from the Powerlink Website on the RIT-T Consultations page or by emailing firstname.lastname@example.org.
Any enquiries in the first instance should be directed to:
Manager Network and Alternate Solutions
PO Box 1193
VIRGINIA, QLD 4014
Tel: (+617) 3860 2328