Yass to Murrumburrah line uprating


TransGrid proposes to uprate its existing transmission line 99M Yass to Murrumburrah (Line 99M).

  • Proposed Activity
    TransGrid proposes to uprate its existing transmission line 99M Yass to Murrumburrah (Line 99M). This involves replacing existing conductors along a section of the line between Structures 1 and 143. Key elements of the proposed activity involve:
    • Re-stringing of the existing conductors
    • Replacement of the existing overhead earth wire with optical ground wire (OPGW)
    • Refurbishment or replacement of approximately 34 structures
    • Connections and renewal works at the Yass 330kV Substation (as required).

    Figure 1: Locaility map

  • Why is TransGrid undertaking the work?

    The NSW Government has approved the construction and operation of the Coppabella Wind Farm, located approximately 30km west of Yass NSW. The Coppabella Wind Farm requires connection to the electricity grid and, to achieve this, TransGrid proposes to uprate a section of the existing Line 99M, between Yass and Murrumburrah (the proposed activity). Uprating Line 99M will enable the increased load requirements from Coppabella Wind Farm to be met and will also maintain a safe and reliable electricity supply.

  • Planning Approval and Environmental Assessment


    WolfPeak, on behalf of TransGrid, prepared a Review of Environmental Factors (REF) in accordance with Part 5 of the Environmental Planning and Assessment Act 1979. The REF was placed on public exhibition on TransGrid’s website from 1 May to 28 May 2018. 

    A Submissions Report was prepared following the period of exhibition, to address the submissions received. TransGrid considered all submissions received as part of the approval process.
    TransGrid has now determined to approve the proposed activity. The Submissions Report along with the Decision Statement and the REF are attached below. 
    TransGrid has planned that construction will commence in late 2018 and will take approximately nine months to complete.
  • How can I get more information?

    ​You can contact Julie Puglisi, TransGrid Environmental Planner, on 02 9284 3844 or julie.puglisi@transgrid.com.au.

    Alternatively, you can contact our Community Engagement team on 1800 222 537 or community@transgrid.com.au.