The Hunter-Central Coast Renewable Energy Zone (HCC REZ) in New South Wales is set to achieve a significant milestone with the unlocking of 1 GW of transfer capacity, thanks to strategic upgrades to the existing network infrastructure. This initiative, led by Ausgrid in collaboration with EnergyCo, is a pivotal step in enhancing the region’s renewable energy capabilities and accelerating the transition away from coal dependency.
Transforming Infrastructure for a Sustainable Future
The HCC REZ, which spans from the Upper Hunter to the Central Coast, is designed to harness the region’s abundant renewable energy resources. By utilizing existing power stations and rehabilitated mining land, the zone aims to integrate approximately 1.8 GW of new renewable generation and storage capacity, facilitating a substantial shift towards cleaner energy sources. This upgrade represents a strategic move to align with New South Wales’ ambitious renewable energy targets.
Details of the Network Enhancements
Ausgrid’s upgrades will involve:
- Enhancing approximately 85 km of existing sub-transmission lines (66 kV and 132 kV).
- Constructing two new energy hubs (substations) while augmenting existing facilities.
- Installing 18 km of underground fibre optic cables to improve communication and control systems.
These enhancements, set to begin in early 2026, will minimize environmental impact by leveraging existing infrastructure instead of constructing new lines. This innovative approach is the first of its kind in New South Wales, showcasing a commitment to sustainability while mitigating community disruption.
Economic Impact and Job Creation
The project is anticipated to attract approximately $3.9 billion in private investment and create around 590 construction jobs, alongside 220 ongoing roles by 2030. This influx of investment will not only bolster the local economy but also support the state’s goal of achieving more than two-thirds of its renewable generation targets by 2030.
According to Renew Economy, the upgrades are designed to align with the Australian Energy Market Operator’s (AEMO) least-cost pathway, ensuring that the transition to renewable energy is both economical and efficient.
Broader Implications for the Energy Landscape
The HCC REZ is a vital component of New South Wales’ broader strategy to phase out coal-fired power. It complements other initiatives like the Hunter Transmission Project, which is essential for maintaining a reliable energy supply as aging coal plants are retired. By enhancing the network’s capacity, these projects will ensure a secure and affordable energy future for the region.
As the energy landscape continues to evolve, the successful implementation of these upgrades will serve as a model for other regions looking to transition to renewable energy sources.
Conclusion: A Step Towards Renewable Resilience
The unlocking of 1 GW of transfer capacity in the Hunter region marks a significant achievement in the push for renewable energy in Australia. With strong governmental support and collaboration among industry players, this initiative not only promises to meet current energy demands but also sets a precedent for future renewable energy projects across the nation.
For battery enthusiasts and renewable energy advocates, these developments signify a robust shift towards a sustainable energy future, showcasing how strategic upgrades can yield significant benefits both economically and environmentally.









