The Mortlake Battery project is a proposed 300 megawatt (MW) / 650 megawatt hour (MWh) battery energy storage project being developed by Origin Energy. The battery is to be co-located at the Mortlake Power Station in Victoria, where Origin operates a 566 MW gas-fired generator.
This project is located within the Victorian South-West REZ V4 region. The battery will be connected to the 500 kilovolt network that runs through the power station.
Construction of the Mortlake battery will take place in three phases:
- site preparation and civil works
- component delivery and installation, and
- commissioning and demobilisation.
Key Dates
| Jan 2024 | Contract Award |
| Aug 2024 | Construction Commencement |
| Sep 2026 | Construction Completion |
Funding contributions
|
The Federal Government provided conditional funding through the Australian Renewable Energy Agency (ARENA), as part of ARENA's $176 million Large Scale Battery Storage Funding Round. The exact amount remains undisclosed. |
Financing
| Origin | |
|
Origin has committed approximately $400 million to the project with the Federal Government providing undisclosed conditional funding through the Australian Renewable Energy Agency (ARENA). |
|
Procurement
| Procuring Agency: | Origin Energy |
| Successful Tenderer: | Fluence, a subsidiary of Siemens and AES |
| Procurement note: | Fluence is a subsidiary of Siemens and AES. |
| Related contracts: |
PROJECT HISTORY
| Dec 2022 | The project was announced as one of eight battery projects to receive funding through ARENA’s $176 million Large Scale Battery Storage funding round. |
| Nov 2023 | The Victorian Department of Transport and Planning endorsed the amended Mortlake Power Station Development Plan and Mortlake Power Station Construction Environmental Management Plan to facilitate the development of the Mortlake Power Station battery. |
| Jan 2024 | Origin awarded the main works contract to Fluence. |
| Aug 2024 | Origin announced that construction had commenced on the project. |
| Sep 2026 | Origin announced that construction had been completed on the project. |
