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Operations

Tomago Battery

The Tomago Battery is a 500 Megawatts (MW), 4 hour duration (2,000 megawatt-hour (MWh)) capacity grid scale battery being constructed at Tomago in NSW.

Bird's eye photo of the Tomago Battery

About the project

The Tomago Battery is a 500 Megawatts (MW), 4 hour duration (2,000 megawatt-hour (MWh)) capacity grid scale battery being constructed at Tomago in NSW.

The location for the battery is between the Pacific Hwy and Old Punt Rd in Tomago Industrial Estate.

The battery has the potential to improve the reliability of the grid by storing power for use when energy demand exceeds generation.

Construction began in December 2025, with the commencement of operations targeted for the second half of 2027. The project will provide up to 200 jobs during the construction phase and up to 6 ongoing jobs when operational.

The total construction cost is estimated to be approximately $800 million. Fluence has been selected as the engineering, procurement and construction (EPC) contractor.

Community and stakeholder feedback

AGL is engaging with the local community, State and Federal government, Port Stephens Council, Worimi Local Aboriginal Land Council and residents and business owners in the region about the Project. 

Please contact AGL on the details below with any concerns or questions.

Expressions of interest

Local and First Nations owned businesses wishing to register their interest in opportunities during construction are invited to complete this short form.