Closed
Central-West Orana Renewable Energy Zone (REZ) - Transmission Project
Tender ID: 609524
Tender Details
Organisation:
Tender #:
-
Status:
Closed
Publish Date:
28 March 2026
Closing Date:
6 April 2026
Tender Description
Overview
The Central-West Orana Renewable Energy Zone (REZ) Transmission Project will build new high-capacity transmission lines, energy hubs and supporting infrastructure to transfer power generated by solar and wind projects to electricity consumers. The new infrastructure is expected to be operational by 2028 and will initially unlock up to 4.5 gigawatts of new network capacity.The project consists of 90km of 500kV overhead transmission lines and 150 km of 330kV transmission lines for generator connections, stretching from Elong Elong in the west through to Barigan Creek in the east, via an energy hub at Merotherie.
The Scope of works consists of 6 Separable Portions:
- Separable Portion 1 (SP1): Detailed Design, LLE procurement and management plans i.e., all works required to be 'Construction Ready'.
- Separable Portion (SP2): 500kV Barigan Creek Switching Station Cut-In (incl works at Wollar Substation, Bayswater Substation and Mt Piper Substation)
- Separable Portion (SP3): 330kV Transmission Line Bayswater and Liddell
- Separable Portion 4 (SP4): Substation Works Bayswater and Liddell
- Separable Portion 5 (SP5): 330kV Transmission Line Mt Piper and Wallerawang
- Separable Portion 6 (SP6): Substation Works Mt Piper and Wallerawang
Substation Scope Summary:
4 Substations where a new bay is to be installed replacing an old existing bay with upgrades to secondary systems.
Total of 6 Substations where Remote End Works is required for these upgrade works.
Transmission Line Scope Summary:
500kV Transmission Line Cut-In works into the Barigan Creek Switching Station.
2 x 330kV Transmission Lines upgrades between Bayswater to Liddell and Mt Piper to Wallerawang.
These upgrades are additional circuits to one line and modifications to the tower lines based on location of new bay locations in the Substations.
| Work Packages | Closing |
| Septic pumpout | 06 Apr 2026 |
| Snake and Fauna removals | 06 Apr 2026 |
| Office cleaning services | 06 Apr 2026 |
| Vehicle maintenance and repairs | 06 Apr 2026 |
| Skip Bin Hire/Rental | 06 Apr 2026 |
| Supply of potable water | 06 Apr 2026 |
| Ecologists | 06 Apr 2026 |
| All capabilities not specified elsewhere | 06 Apr 2026 |
*Express interest for any opportunities that may arise for this project.*
Location
Category
Cleaning Services & Equipment & Supplies
:
Cleaning Services
Environmental & Heritage Services : Environmental Management : Fauna Protection : Flora & Fauna Survey & Management Services
Farming & Animal Services & Equipment : Feral Animal Management Services
Waste Management : Bins & Skips : Septic Tanks Pump Out
Commercial & Military & Private Vehicles & Accessories : Vehicle Maintenance & Repairs
Water & Sewage : Potable Water
Environmental & Heritage Services : Environmental Management : Fauna Protection : Flora & Fauna Survey & Management Services
Farming & Animal Services & Equipment : Feral Animal Management Services
Waste Management : Bins & Skips : Septic Tanks Pump Out
Commercial & Military & Private Vehicles & Accessories : Vehicle Maintenance & Repairs
Water & Sewage : Potable Water
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