Picnic Point to Revesby cable project

 

Ausgrid is planning to replace the existing underground electricity cables that run between our Revesby Zone Substation and Transgrid’s Sydney South substation located in the Georges River National Park at Picnic Point.

Project need

The Revesby Zone Substation is currently supplied by two 132,000 Volt fluid filled underground cables. The existing cables are more than 40 years old and are approaching the end of their service life. They have experienced failures, fluid leaks and increased rates of corrective works in recent years and must be replaced to maintain a safe and reliable power supply to customers.

The project is part of a program to retire fluid filled cables across our network.

Cable route

The proposal involves replacing the cables of the same voltage along the existing cable route on Tarro Avenue, Eastern Avenue and Kennedy Street, crossing Weston Street, Tower Street and Burns Bay Road. The southernmost section would access a path through the Georges River National Park.

As we plan this cable replacement project, there are a range of factors Ausgrid needs to consider, including:

  • community impacts
  • availability of space around existing utility services
  • environmental and social impacts
  • cost (minimising the impact on electricity bills)
  • technical feasibility
  • traffic impacts.

Project status

Project and community timeline

Project approval process

Under the NSW Environmental Planning and Assessment Act 1979, Ausgrid is the determining authority for this project.

As part of this process, an environmental assessment known as the Review of Environmental Factors (REF) will be prepared. The REF will investigate the potential environmental impacts associated with the construction and operation of the new cables and will include a range of specialist studies and feedback from the community, councils and other authorities.

The REF will be placed on exhibition at several locations and the community invited to make submissions.. Following the REF exhibition, Ausgrid will review all submissions and prepare a report. Community feedback will be considered prior to the project being assessed for construction approval.

Community engagement

Ausgrid started engaging with key stakeholders, such as City of Canterbury Bankstown Council earlier this year to obtain feedback on the replacement cable route.
Engagement with residents and businesses along and around the replacement cable route started in April 2018 when the first project newsletter was distributed. A copy of the newsletter can be found on the right hand side of this page. 

Ausgrid is seeking input from the community on the replacement cable route.  Community feedback will help inform the planning process and will also help us mitigate or avoid impacts during construction.

Ausgrid is holding an information session about the project, see details below:

Community information session

Date: Thursday 26 April, 2018

Venue: Revesby Workers Club, Acacia Room

Address: 2B Brett St, Revesby

Time: 4.30pm to 7.30pm (presentation at 6.00pm)

There is no need to book, just drop in. At the session, members of the project team will give a short presentation on why the project is needed and what to expect during construction. A copy of the presentation will be posted on this page after the information session. Please contact us if you can't attend the session and want more information.

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 potential issues and address them in our construction plans to minimise impacts.

Construction

This project would involve installing the new 132,000 Volt cable and spare conduits through streets in Picnic Point and Revesby. Retiring the existing cables between our substation in Revesby and

Transgrid’s substation in Picnic Point would involve some work at various locations along that cable route and at the substations themselves.

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

Click here to view an information graphic showing the different stages of cable laying.

Work to install the new cables would generally include:

  • digging trenches in roads to lay conduits (plastic pipes) to accommodate the new cables
  • backfilling trenches and temporary resurfacing of impacted areas (trenching and temporary resurfacing takes about three days outside each property depending on ground and weather conditions)
  • excavating underground joint bays at various locations along the cable route
  • feeding in and joining sections of cable at the joint bay locations permanently restoring impacted areas, in consultation with Council once the overall project is complete.

Work to retire the existing 132,000 Volt cables would involve:

  • Excavating existing joint bays along the cable route
  • Removing cable equipment
  • Disconnecting the cables.