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Thomastown Battery Energy Storage System


The Thomastown BESS will have a maximum power output of 300MW and a storage capacity of 600MWh.

Design and planning activities have begun. We’ve submitted a Planning and Connection Enquiry to the Australian Energy Market Operator (AEMO) and will shortly finalise a planning permit application to the Minister for Planning.

What does the project involve?

Approximately 200 metres of connection assets will be built to link the BESS to the adjacent Thomastown Terminal Station.

As part of the project, we’ll be upgrading parts of the Thomastown Terminal Station.

Subject to planning and grid connection approvals, the Thomastown BESS is expected to be operational in 2025. 

We’d like to hear from you 

If you have any questions or concerns about the proposal, please call us on 1300 360 795 or email  

Ballarat energy storage system

The Ballarat Battery Energy Storage System (BESS) is Victoria’s first utilities scale grid-connected battery.  


The Ballarat BESS is a 30MW/30MWhr battery. It was integrated into the electrical grid in 2018.  

Our battery has the capacity to power over 20,000 homes for more than an hour before being recharged. It’s located in the Ballarat Terminal Station. This allows us to help Victoria meet peak energy demand and improve the stability of the state’s energy supply. 

The project was commissioned by the Victorian Government and Australian Renewable Energy Agency (ARENA). The Ballarat BESS was designed, constructed, and is now operated with our help from our partners Spotless, EnergyAustralia and Fluence. 

Knowledge sharing

By sharing our learnings, we further the growth of battery services in Australia and across the world.  

Report: Operational Report | July 2020 
This report shares the learnings from the first 12 months of operation of the Ballarat BESS. Read the report

Report: Project Summary Report | August 2019 
This report shares knowledge on the installation and commissioning of a BESS that is: 

  • Utility scale 
  • Transmission asset connected   

Read the report.

Key milestones



Financial Close


First container shipment received


Final Battery shipment received


AEMO Registration


Commercial Operations



This graphic displays charging/discharging data against Victorian prices over the last 2 days. The full version can be viewed on the EnergyAustralia website.