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Operations

Liddell Battery

The Liddell Battery is a 500 MW, two-hour duration, grid scale battery at AGL’s Hunter Energy Hub in NSW.

Rendered image of what Liddell battery could look like

About the project

The Liddell Battery is a 500 MW, two-hour duration, grid scale battery located on the former Liddell Power Station site. The project became commercially available in June 2026, following a staged commissioning process. 

The battery is providing electricity storage to support the stability and reliability of the National Electricity Market, helping to build a better system for our customers. 

The Liddell Battery forms part of AGL’s growing portfolio of grid scale storage, alongside the 250 MW Torrens Island Battery and the 50 MW Broken Hill Battery. 

Project overview and purpose

AGL is progressing plans to facilitate the efficient, safe and reliable continuation of electricity generating works from Bayswater and the Liddell site. The Project consists of the following stages:

Stage 1 - Completed January 2024
  • Decoupling works: Alternative network connection arrangements for the Liddell 33 kilovolt (kV) switching station that provides electricity to infrastructure required for the ongoing operation of Bayswater and associated ancillary infrastructure and potential third-party industrial energy users. More information.
     
Stage 2 - Commenced October 2023
  • The Battery: A grid connected Battery Energy Storage System with capacity of up to 500 MW and 2 GWh
  • Bayswater Ancillary Works (BAW): Works associated with the ongoing operation of Bayswater which includes (but is not limited to), upgrades to ancillary infrastructure such as pumps, pipelines, conveyor systems, roads and assets to enable maintenance, repairs, replacement, expansion or demolition. More information.
  • Consolidated consents: A modern consolidated consent for the continued operation of Bayswater through the voluntary surrender and consolidation into this application of various existing development approvals required for the ongoing operation of AGLM assets.
  • Demolition: Removal of redundant solar thermal plant infrastructure was completed December 2023.

Project documents

Statutory Approvals
Stage 1 Plans - Liddell Decoupling Works
Stage 2 - Liddell Battery
 Statutory approvals
 
Plans
 
Statutory compliance
Stage 3 - Bayswater Ancillary Works
Statutory approvals
Plans

Knowledge Sharing

The project will be supported by both a $35 million grant awarded by the Australian Renewable Energy Agency (ARENA) as part of its Advancing Renewables Program and a Long-Term Energy Service Agreement (LTESA), arranged by AEMO Services on behalf of the NSW Government.

Community complaints and enquiries

AGL understands that we don’t always get it right, and we want to be informed when we don’t. If you would like to provide any feedback, good or bad, or simply ask some questions, please feel free to get in touch via the following channels:

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Complaints and Enquiries Hotline

Call 1800 039 600
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Email

AGLCommunity@agl.com.au
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Mail

AGL Community Complaints & Enquiries,
Locked Bag 14120 MCMC,
Melbourne VIC 8001

Learn more  about how we handle general customer complaints on our complaints page.