Stubbo Solar Farm

Under Delivery
Stubbo Solar Farm

The 400-megawatt Stubbo Solar Farm, owned by UPC/AC Renewables, is to be located approximately 10 kilometres north of Gulgong in the Central-West Orana Renewable Energy Zone (REZ). The proposed solar farm comprises two separated sections and a Battery Energy Storage System of up to 200 megawatt hours.

The project will include an onsite substation and connect to an existing 330 kilovolt transmission line, operated by TransGrid, which will be a REZ transmission line.

Key Dates

2018 Project Announcement
Oct 2021 Expected Construction Commencement
Nov 2022 Construction Commencement
Oct 2023 Expected Construction Completion


Procuring Agency: ACEN Australia
Successful Tenderer: PCL Construction
Procurement note:

PCL awarded Engineering Procurement and Construction Contract on 10 January 2023.


Apr 2020 The project's proponent issued a Scoping Paper and requested the Secretary's Environmental Assessment Requirements for the project.
May 2020 The NSW Department of Planning, Industry and Environment Secretary's Environmental Assessment Requirements were issued for the preparation of the Environmental Impact Assessment of the project.
Dec 2020 The Environmental Impact Statement was put on public exhibition.
Jun 2021 The NSW Department of Planning, Industry and Environment approved the project's State Significant Development application.
Nov 2022 Key Contracts have been executed and a final investment decision made by renewables developer ACEAN Australia, enabling construction commencement on the Stubbo Solar Farm.
Jan 2023 ACEN Australia appoints PCL as EPC contractor and issues Notice to Proceed.
Feb 2023 ACRI, ACEN's renewable energy subsidiary, and UPC Renewables Asia Pacific Holdings (UPCAPH) signed an Instrument of Transfer for the transfer to ACRI of UPCAPH’s remaining 4,766 ordinary shares in UPC-AC Energy Australia (HK) Limited, which completes the second and final tranche of ACRI’s acquisition of ACEN Australia. The acquisition results in the full ownership by ACEN of the Stubbo solar farm
May 2023 The project was awarded a new generation Long-Term Energy Service Agreement by AEMO Services under the inaugural tender round for new generation and long-duration storage electricity infrastructure in New South Wales.
Procurement approach
Traditional Procurement |
New South Wales |
Project website
Stubbo Solar Farm
Government resources
EnergyCo list of REZ projects
Project pages
ANZIP Central-West Orana REZ
Project contact information