Projects

Hunter-Central Coast Renewable Energy Zone Sub-transmission Network Upgrades

Client
Ausgrid
Sector
Power Networks & Transmission
Location
Hunter-Central Coast Renewable Energy Zone

Upgrading existing network infrastructure to unlock renewable energy across the Hunter-Central Coast

Services
  • Transmission
  • Distribution
  • Design & Construction
  • Upgrade Works
The Challenge

Ausgrid has been appointed by the Energy Corporation of New South Wales as the preferred network operator for delivery of the sub-transmission network for the Hunter-Central Coast Renewable Energy Zone.

The Hunter-Central Coast REZ is one of the first five Renewable Energy Zones being developed by the New South Wales Government.

The region was chosen because it has strong renewable energy resources and can utilise existing power stations, rehabilitated mining land, electricity network infrastructure, port and transport infrastructure, and a skilled workforce.

The project involves upgrading the existing electricity network so new renewable generation can connect to the grid. By focusing mainly on network upgrades, the project is designed to minimise impacts on surrounding communities and the environment while delivering capacity to transfer at least 1 gigawatt of network transfer capacity.

The Genus Approach

Genus has been awarded a contract by Ausgrid for the Hunter-Central Coast Renewable Energy Zone sub-transmission line works.

The contract value is circa $140 million, including Early Works.

Peak manning resources are expected to be 120, provided mostly from Genus’ existing workforce, with any additional workforce requirements to be sourced locally where available.

Delivery in action

The works include demolition, construction and communications upgrades across the existing sub-transmission network.

The scope includes:

  • Demolition of 86 kilometres of existing 132kV and 66kV sub-transmission lines
  • Construction of 106 kilometres of 132kV and 66kV dual / single circuit sub-transmission lines from Kurri Subtransmission Station to a new Eastern Hub Switching Station
  • Construction of 4 kilometres of dual circuit 132kV sub-transmission lines from Muswellbrook Switching Station to Muswellbrook Bulk Supply Point
  • Replacement of 30 kilometres of earthwire with optical ground wire
  • Installation of 2 kilometres of ADSS fibre optic cable
  • The project is expected to be completed in April 2028.
The outcome

Project ongoing.

The project will increase network transfer capability across the Hunter-Central Coast region and strengthen the existing electricity network.