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Project Specification Consultation Report - Maintaining power transfer capability and reliability of supply at Bouldercombe Substation

29/10/2018
Market Network Service Provider
StageProject Specification Consultation Report
ConvenorAEMO NSP
Initiated29/10/2018
Accepting submissions?No
Submissions close25/01/2019

Powerlink has recently published a ‘Project Specification Consultation Report’ to address maintaining power transfer capability and reliability of supply at Bouldercombe Substation.

Located approximately 19 kilometres south-west of Rockhampton and established in 1975, Bouldercombe Substation is a major transmission node for Central Queensland, marshalling a number of 275kV circuits from Nebo and Broadsound to the north, Stanwell in the west and Raglan and Calliope River to the south.

It also provides the sole 132kV injection source for the area, supplying Ergon Energy at Rockhampton, Egans Hill and Pandoin, as well as Stanwell Power Station’s auxiliary supply and customers directly connected to Powerlink’s network.

Transformers 1 and 2, along with the original circuit breakers, disconnectors, earth switches and instrument transformers at Bouldercombe Substation are nearing the end of their technical service lives, with manufacturers no longer providing technical support or carrying spares for many of the items.

The proposed preferred option that is considered to satisfy the Regulatory Investment Test for Transmission (RIT-T) involves the installation of  a new 250MVA transformer, decommissioning of transformers 1 & 2 and the single stage replacement of all at risk plant by December 2021.

The indicative capital cost of this option is $30.6 million in 2018/19 prices.

In accordance with the requirements of the Rules, a summary of the Project Specification Consultation Report is made available on the AEMO website. A copy of the ‘Project Specification Consultation Report’ can be obtained from the Powerlink Website on the RIT-T Consultations page or by emailing networkassessments@powerlink.com.au .

Submissions on the Project Specification Consultation Report are required by the closing date of 25 January 2019

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

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