The Longwarry Energy Storage System is a 5,000kW energy storage project located in Longwarry, Victoria, Australia. The rated storage capacity of the project is 7,500kWh.

The electro-chemical battery energy storage project uses lithium-ion as its storage technology. The project will be commissioned in 2021.


The key application of the project is grid stability.

Contractors involved

E22 Energy Storage Solutions is the technology provider for the project.

E22 Energy Storage Solutions is the system integrator.

Additional information

The battery will provide AusNet with much-needed network services, as grid congestion will only get worse in the peak summer period. AusNet and E22 have a five-year deal, and the battery is set for completion in early 2021.


All publicly-announced energy storage projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects are sourced through secondary information sources such as country specific power players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.