Eastern Suburbs cable project

 A similar cable project in progress

Ausgrid is planning to retire some of the electrical equipment at our Clovelly substation to maintain a safe and reliable power supply to electricity users in the surrounding areas. The project would involve installing new underground 11,000 Volt cables to connect to Ausgrid's Kingsford and Waverley substations.

Project need

Some of the electrical equipment at our Clovelly substation in Bligh Place, Randwick is ready to be retired as it is nearing the end of its service life. 

Before this can happen, the associated power supply needs to be transferred to our Waverley and Kingsford substations.  We will also need to replace some sections of existing cables to increase the capacity of the network and meet the requirements of the project. 

 

 

Planning cable projects

There are a number of considerations to factor in while planning cable routes. These include:

  • community impacts
  • availability of space around existing utility services
  • environmental and heritage impacts
  • cost (minimising the impact on electricity bills)
  • technical feasibility
  • traffic impacts
  • coordinating works with other infrastructure projects.

Ausgrid has investigated and decided on a proposed cable route for this project, taking into consideration the above factors.  We have divided the route into two sections, based on where construction work will happen - please see the proposed route maps via the links at the top right of this page.

Project status

The project was approved for construction in late October 2017.

Site investigations to confirm the final location of cables in the road and footpaths are expected to happen in late 2017 or early. Work to install the cables will start once the investigations have finished.

Construction should be finished in late 2019, however, work to install the new cables in streets is expected to be completed in mid-late 2018. The joining of the sections of cable together and the restoration of roads and footpaths impacted by the work could take a further 12 months. Work to retire the electrical equipment at the Clovelly substation will happen in 2019.

Ausgrid will keep residents, businesses and other stakeholders updated on what to expect during the project stages. 

 

Project approval process

Ausgrid is the approving authority for these works under the NSW Environmental Planning & Assessment Act. As part of the approval process, we have completed an environmental assessment for this project to investigate the potential environmental impacts associated with the construction, operation and maintenance of the new cables.

The assessment included specialist studies and input from Bayside, Randwick City and Waverley councils and other relevant authorities.  It also recommends mitigation measures as required to ensure any impacts are minimised and are at acceptable levels. 

Community engagement

Ausgrid started engaging with Bayside, Randwick City and Waverley councils about the project in May 2017 and has also been coordinating with other authorities about their work in the area. This includes Transport for NSW who are working in Kingsford and Randwick to build the new light rail.

Engagement with residents and businesses along and around the proposed cable route started in late July 2017 with door knocks and face to face meetings. The first project newsletter was distributed from early August 2017 to introduce the project to the community. A second newsletter was issued in mid-November to provide more detailed information about what to expect during construction. Copies of the newsletters can be found on the right hand side of this page.

On 21 and 24 August 2017, we held two information sessions, one at the Juniors Kingsford and the other at the Margaret Whitlam Recreation Centre in Bondi, to seek local information and community feedback on the proposed cable route.
At the community information sessions, members of the project team gave two short presentations - on project need and what to expect during construction of a typical underground 11,000 Volt cable project. The presentation can be viewed via the link on the right of this page.

We will continue to engage with the community and stakeholders during each stage of the project. Ausgrid welcomes questions or comments about the project at any time (see project contacts top right). Community feedback assists us to identify all potential issues and address them in our construction plans to minimise impacts.

Construction

This project will involve installing new 11,000 volt cables through streets in Bondi, Waverley, Bronte, Randwick, Kingsford and Daceyville and replacing some sections of existing cables. 

As with any construction work, there will be some noise and dust, and temporary traffic, access and parking disruptions, but we will make every effort to keep these to a minimum. 

Construction will involve:

  • digging trenches, approximately 1.5 metres wide, to lay conduits (plastic pipes) to hold the new cables
  • filling trenches and resurfacing the area temporarily
  • trenching and resurfacing takes about three days outside each property depending on ground and weather conditions
  • excavating underground joint bays at various locations along the route in the road to feed in and join cables together
  • feeding in and joining the cables, which take several weeks to complete
  • work on the joint bays usually occur in distinct stages
  • replacing some sections of existing cables with new ones
  • typically, restoration work is done in two stages; excavated sections of road are refilled immediately and temporarily resurfaced to allow normal use by traffic
  • replacing some sections of existing cables with new ones
  • final restoration is completed in consultation with Bayside, Randwick City and Waverley Councils and relevant authorities either as sections of work are completed or once the overall project is finished..

Any potential impacts associated with this work are assessed as part of the project's environmental assessment and measures will be put in place to minimise impacts on the community and local environment. 

Ausgrid's work hours are 7am to 6pm Monday to Friday, and 8am to 1pm on Saturdays. Some night work will be required on Bondi Road in Bondi and Bronte Road, Birrell Street and Macpherson Street and Arden St in Bronte,  and Anzac Parade in Kingsford, to minimise the impact on traffic, businesses and the general community during the day and as directed by the relevant road authority. 

We will contact affected community members in advance of this work with more information.  

 

 

Clovelly substation

Work to retire the electrical equipment at our Clovelly substation will begin once the new cables are installed and connected to the Waverley and Kingsford substations and the electricity load has been transferred. 
 
Activities to retire the electrical equipment at Clovelly substation will include:

  • disconnecting and making safe the electrical equipment that is no longer required
  • removing the electrical equipment and taking it off site for disposal, reuse or scrap.