Project details
Ausgrid is updating its network in Belrose. This critical infrastructure supplies electricity to an existing customer base of 48,000 within the Ku-ring-gai region which includes three hospitals and many schools. Between late 2025 and late 2027, Ausgrid will replace the existing 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.
The scope of the project involves replacing the ageing fluid-filled cables along the current route. The new cables will be installed next to the existing cables, which means the works will remain in the existing underground corridor. This will minimise any additional impact on the surrounding area. Road and Rail Excavations Pty Ltd has been engaged as the contractor to carry out the cable installation works.
Community Consultation
During early planning, the project team consulted with the landowner, Metropolitan Local Aboriginal Land Council and the local community. Consultation included community information sessions held in Belrose for the local community to learn more about the proposed works and provide feedback.
As plans progressed, Ausgrid refined the project design. Throughout the planning process, newsletters were distributed to the local community, and we keep project information on this page up to date.
Timeline
Between late 2025 and late-2027, we will:
- Prepare the site
- Complete excavation work in stages
- Install 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
- Restore site to original condition
We expect the project to be completed in late 2027.