AGL has announced the installation of the first Liddell Battery units at its Hunter Energy Hub.
Related article: Curtain closes on 52-year-old Liddell Power Station
The Liddell Battery is a 500MW, two-hour duration, grid-scale battery being constructed at the former Liddell Power Station site in Muswellbrook, New South Wales.
Fluence has been selected as the engineering, procurement and construction (EPC) contractor. Connection agreements have been signed with Transgrid to construct and operate 330/33kV battery substation and ~450m of 330kV overhead transmission line and an extension to the existing 330kV switchyard.

The Liddell Battery is expected to become operational in early 2026, joining AGL’s existing 250MW Torrens Island Battery and 50MW Broken Hill Battery in providing essential storage and firming capacity to the electricity network.
AGL’s vision for the Hunter Energy Hub is to create a low-carbon integrated energy hub— designed with circular economy principles, including renewable energy generation, grid-scale batteries, green advanced manufacturing, and associated industries.
The Hunter Hub is set across 10,000 hectares in the Hunter Valley, around 90 minutes drive from Newcastle on the lands of the Wonnarua/Wanaruah community.
Related article: Liddell grid-scale battery approved for Hunter Energy Hub
The location provides access to electricity supply, water infrastructure, highways, rail and an international port.






