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Belrose Cable Replacement Project

Belrose Cable Replacement Project

Status: Current
Ausgrid is to replace aging underground cables along Ralston Avenue Belrose, between Elm Avenue and the Western Lookout.

Project details

Ausgrid is replacing the existing fluid-filled underground 132kV sub-transmission cables between the Belrose Transition Point on Ralston Avenue and the intersection of Ralston Avenue and Elm Avenue, continuing through to the Transgrid Sydney East substation. This infrastructure supplies electricity to an existing customer base of 48,000 within the Ku-ring-gai region which includes three hospitals and many schools. 

Community Consultation

In addition to consultation with the landowner and the Metropolitan Local Aboriginal Land Council, the Ausgrid Project Team hosted community information sessions in Belrose for the local community to learn more about the proposed works and provide feedback. Newsletters have been distributed to the local community, and we keep our project status up to date on this page. 

Timeline

  1. Late 2025 - Mid 2027

    Construction to be completed in stages:

    - Site preparation

    - Staged excavation works and installation of new underground cables

    - Complete works within Transgrid’s Sydney East Substation 

    - Complete works inside the brick enclosure at the Ralston Lookout to connect replacement cables

    - Connect cables to existing overhead network

  2. Late 2027

    Estimated project completion

    - Site restoration to original condition

What to expect during construction

Residents will be kept informed of all scheduled works through notification letters providing details on scheduled works.  The notification will include details on the work that will take place, any temporary impacts, and the steps being taken to minimise disruption throughout the work. 

Project benefits

The current cables are reaching the end of their serviceable life and require replacement to safely provide energy to the community. 

Next steps

In October 2025, we issued a newsletter to the local community including an overview of what is happening on the project. Click here to view the newsletter.

For all enquiries, contact the Major Projects team via:

Email: majorprojects@ausgrid.com.au

Phone: 1800 604 765 (free call)

Related Documents

29/10/25 Belrose Cable Replacement Newsletter 2025 Project Commencement 0.8 Mb 25/10/24 Belrose Cable Replacement Newsletter Oct 2024 3.6 Mb 28/09/23 Belrose Cable Replacement Newsletter Oct 2023 0.9 Mb 23/11/23 Belrose Cable Replacement Project FAQs November 2023 0.3 Mb 13/05/24 Belrose Cable Replacement Social Impact Assessment 4.4 Mb