The Angas Zinc Mine Advanced Compressed Air Energy Storage System is a 5,000kW energy storage project located in South Australia, Australia. The rated storage capacity of the project is 10,000kWh.

The electro-mechanical energy storage project uses compressed air storage as its storage technology. The project was announced in 2019 and will be commissioned in 2023.


The Angas Zinc Mine Advanced Compressed Air Energy Storage System is being developed by Hydrostor.

The key applications of the project are frequency regulation, load shifting and reliable power supply.

Contractors involved

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By GlobalData

Hydrostor is the developer.

Hydrostor is the system integrator.

Additional information

The project has been awarded a grant of $6 million from the Australian Renewable Energy Agency (ARENA) as part of its Advancing Renewables Program. Government of South Australia’s award of a $3 million grant in support of the project through its Renewable Technology Fund.

About Hydrostor

Hydrostor Inc is the developer of Advanced Compressed Air Energy Storage (A-CAES) projects, enabling the transition to a cleaner, more affordable, and more flexible electricity grid. The company is headquartered in Toronto, Canada.


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.