TransGrid is working with the NSW Government to plan new transmission infrastructure for the development of Australia’s first coordinated Renewable Energy Zone (REZ) in the state’s Central-West Orana region.
What is a REZ?
Renewable Energy Zones (REZs) are the modern-day equivalent of traditional power stations. They combine energy generation (such as wind and solar), storage (such as batteries), and the high-voltage poles and wires to deliver energy to the homes, businesses and industries that need it. By connecting multiple solar and wind generators, and energy storage in the same region, REZs capitalise on economies of scale and deliver affordable, reliable and clean electricity for NSW.
What is the Central-West Orana REZ Transmission?
TransGrid is planning new transmission lines, substations and related infrastructure to support the delivery of a pilot REZ in the Central-West Orana region.
The proposed transmission lines will run north-west from the existing network near Merriwa, passing south of Dunedoo before connecting to the existing network east of Wellington. The study corridor (shown on the map to the right) also includes an option to extend further south near Lake Burrendong.
TransGrid’s existing substation at Wollar will also be upgraded as part of the project.
What are the project benefits?
- Lower wholesale electricity costs – placing downward pressure on customer bills through increased competition
- Improved reliability – by delivering large amounts of new energy supply
- New local jobs – opportunities for local workers and businesses during procurement and construction
- Reduced emissions and a greater mix of renewable energy in the National Electricity Market, supporting Australia’s transition to a lower carbon future.
The project is receiving funding from the Australian Renewable Energy Agency (ARENA) as part of ARENA's Advancing Renewables Program.