Construction is now underway on the Hunter-Central Coast Renewable Energy Zone (HCC REZ) network infrastructure, stretching from Kurri Kurri to Muswellbrook.
The project will deliver two new substations, upgrades to around 85 kilometres of existing sub-transmission lines and the installation of 18 kilometres of underground fibre optic communications cable. Existing substations, including the Kurri Kurri site, will also be upgraded.
Once complete, the network upgrades are expected to support up to 1 gigawatt of additional renewable energy transfer capacity. The broader REZ is designed to connect an additional 1.8 gigawatts of new renewable generation and storage projects, generating enough energy to power more than all the homes in the Hunter.
Minister for Climate Change and Energy Penny Sharpe visited the Kurri Kurri Subtransmission Station to mark the start of works, alongside infrastructure planner EnergyCo and network operator Ausgrid.
Reusing existing infrastructure
The Hunter-Central Coast REZ Network Infrastructure Project is the first Renewable Energy Zone project in NSW to upgrade existing distribution poles and wires rather than constructing entirely new transmission lines.
According to Ausgrid, by upgrading existing infrastructure where possible, the project is delivering lower-impact outcomes for communities while strengthening the network for future generations.
“As Australia’s first Distribution REZ, Ausgrid is proud to lead the way in demonstrating how we can play a key role in the energy transition,” Dr Helen Nugent AC, Independent Chairman of the Ausgrid Board, said.
She also said Ausgrid had spent the past 12 months planning the project and carrying out engagement with landowners, residents and local businesses, and that the organisation looked forward to its solution providing ongoing benefits for the Hunter region.
The project is on track for completion in 2028.
Jobs during construction and operation
The NSW Government states the project will create 590 jobs during construction and a further 220 ongoing local roles once operational. EnergyCo Chief Executive Hannah McCaughey said 90 percent of the ongoing jobs are expected to be filled by locals.
“Upgrading this critical infrastructure is another step forward in securing clean, affordable and reliable energy for households and businesses as ageing coal-fired power stations retire,” said Minister for Climate Change and Energy Penny Sharpe.
She added that the project would unlock hundreds of local jobs and support economic activity in the Hunter region.
Member for Cessnock Clayton Barr said the announcement of hundreds of new jobs was welcome for the local area and encouraged residents to take part in the upgrade of the electricity network.
New energy hubs and local business pathways
Two new energy hubs will be built in Muswellbrook Local Government Area at Sandy Creek and Antiene, forming part of the upgraded network infrastructure.
To connect local suppliers and contractors with project opportunities, the NSW Government has established an online directory covering work across all Renewable Energy Zone regions. Local businesses can register to access information about upcoming contracts and employment pathways.


