Glamdring

Research desk

Energy storage

Research desk on grid-scale energy storage: battery sites, capacity and build status, measured against AEMO registry and operator data.

2 briefs

Engraving of a cutaway isometric view of a lithium-ion grid battery rack: stacked battery modules with cells exposed, busbars, cooling pipes and a power conversion cabinet beside it
Engraving of a cutaway isometric view of a lithium-ion grid battery rack: stacked battery modules with cells exposed, busbars, cooling pipes and a power conversion cabinet beside it

Battery storage by state in Australia: AEMO July 2026

Queensland has the most reported battery storage in the NEM, both in total (146,674.1 MWh) and in service (4,331.8 MWh). Its lead rests on Publicly Announced projects; excluding that class, New South Wales leads with 35,622.2 MWh against Queensland's 22,571.4 MWh.


1 sources

Engraving of a grid battery storage site with rows of containers and a substation

Australia's largest battery storage sites: AEMO July 2026

Birriwa BESS reports the most storage on AEMO's register at 1,840 MWh, but it is only announced. The largest battery in service is Western Downs at 1,019.2 MWh. Take capacity from the release and build status from the status column.


4 sources