Major Australian utility AGL has begun commissioning of the first 250 MW of the 500 MW / 1,000 MWh grid-forming Liddell Battery at AGL’s Hunter Energy Hub in New South Wales (NSW).
Image: AGL
Construction of the battery, which sits next to the closed coal-fired Liddell Power Station, approximately 230 kilometers northwest of Sydney, is complete, and the battery is scheduled for full commercial operations by June 2026. It first registered with grid-operator AEMO in September 2025 as the construction continued into testing and commissioning.
The Liddell Battery will provide storage capacity and supporting system stability in the National Electricity Market (NEM) and will join AGL’s expanding portfolio of grid-scale batteries, including the 250 MW Torrens Island Battery, the 50 MW Broken Hill Battery, and the under-construction 500 MW Tomago Battery.
The battery project has been supported by both a $35 million (USD 24 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), awarded by AusEnergy Services Limited (ASL), formerly the Australian Energy Market Operator (AEMO), as part of the NSW Roadmap.
