TransGrid is working with the NSW Government to plan new transmission infrastructure for Australia's first coordinated Renewable Energy Zone (REZ) in the State's Central-West Orana region.
What is a REZ?
REZs are the modern day equivalent of traditional power stations. They combine renewable energy generation (such as wind and solar), energy storage (such as batteries and pumped hydro), and high-voltage structures and transmission lines to deliver energy to homes, businesses and industries that need it.
By connecting multiple energy generators and storage at the same location, 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 500kV and 330 kV transmission lines, substation(s) and related infrastructure to support the development of the Central-West Orana REZ.
A study corridor is a broad area of investigation where the transmission lines and infrastructure could be located. The project study corridor runs north-west from the existing 500kV network near Merriwa, passing south of Dunedoo before connecting to the existing network east of Wellington. The corridor also includes an option to extend further south to near Lake Burrendong.
View the study corridor and submit feedback using this interactive map.
TransGrid’s existing substation at Wollar will also be upgraded as part of the project.
Project funding is being received from the Australian Renewable Energy Agency (ARENA) as part of ARENA's Advancing Renewables Program.
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 construction
- Reduced emissions and a greater mix of renewable energy in the National Electricity Market, supporting Australia’s transition to a lower carbon future.
What is happening now?
The Central-West Orana REZ Transmission is in its early investigation stages. A route for the transmission lines has not yet been decided.
We are currently meeting and working with landowners and local communities to discuss constraints and opportunities within the study corridor, including carrying out environmental surveys to help with informing route identification.