TransGrid has recently published a Project Consultation Specification Report for maintaining compliance with performance standards applicable to Deniliquin substation secondary systems.
Deniliquin 132/66 kV substation was commissioned in early 1970s and forms part of TransGrid’s network that serves the Riverina region in south-western NSW. A connection point supplying Essential Energy in the Deniliquin area, it supports the flow of electricity to nearby agricultural industries which mainly consist of irrigation and rice farming, as well as a residential population of more than 7,000.
The secondary systems at Deniliquin substation have reached a condition that reflects the end of serviceable life. As it is superseded by new technology at the manufacturer level and the existing technology becomes obsolete, spare parts become scarce and the ability of the any primary asset connected to the substation to reliably operate will be at risk.
TransGrid has put forward for consideration three credible options that would meet the identified need from a technological and project delivery perspective. A complete upgrade and renewal of secondary systems at Deniliquin substation by using modular SSB and installing new cable throughout is the most economical and preferred option at this stage of the RIT-T process.
The estimated capital cost of the proposed preferred option is $10.4 million.
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
Submissions in response to this Project Specification Consultation Report are required by the closing date of 5 September 2019.