Collie Battery

Under Delivery
Collie Battery

The Collie Battery, proposed by Neoen, would deliver a Battery Energy Storage System with a proposed capacity of one gigawatt. The project is to be located near Collie, WA, approximately 150 kilometres south of Perth, and will connect to the Western Electricity Market via the existing Shotts substation.

The project is expected to be delivered across five stages, including:

  • Stage One - a 219 megawatt / 877 megawatt hour battery project proposed by Neoen.
  • Stage Two has been announced following AEMO awarding Neoen a 341 megawatt / 1,363 megawatt-hour battery services contract.

Details of the remaining stages are yet to be released.

Key Dates

Jun 2023 Contract Award
Jun 2023 Construction commencement - Stage One
Apr 2024 Construction commencement - Stage Two
2024 Expected construction completion - Stage One
Dec 2025 Expected construction completion - Stage Two


In February 2024, Neoen announced the completion of a $1.1 billion debt financing package for a 1.5-gigawatt renewable energy portfolio made up of eight solar, wind, and battery assets. $700 million will see the refinancing of single-asset level debts, while the remainder will be used to finance the project. The debt syndicate comprised of ANZ, Commonwealth Bank of Australia, MUFG, Bank of China, Clean Energy Finance Corporation, China Construction Bank Corporation, HSBC, ING, Mizuho, Société Générale and Westpac.


Procuring Agency: Neoen
Successful Tenderer: UGL - Stage One and Two construction Tesla - Stage One and Two energy supply


Jun 2023 UGL was awarded the contract to design and construct Stage One of the Collie BESS, and commenced construction. Stage One will have a capacity of 219 MW / 877 MWh.
Feb 2024 Neoen completed the debt financing of a diversified renewable energy portfolio of eight wind, solar and battery storage assets, raising $1.1 billion. The first new asset financed through this packaged debt is Collie Battery Stage One.
Apr 2024 Neoen announced that AEMO has awarded a second capacity services contract for the Collie Battery with a 300 MW / 1,363 MWh capacity. UGL has been awarded the construction and installation contract, and Tesla the supply of 348 Megapack 2 XL units.
Procurement approach
Traditional Procurement |
Western Australia |
Project website
Collie Battery