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Ballarat Energy Storage System

AusNet Services hosts a 30 Megawatt (MW) 30 Megawatt-hour (MWh) Battery Energy Storage System installed at the Ballarat Terminal Station in Warrenheip, Victoria. The world-class consortium comprising Spotless, AusNet Services, EnergyAustralia and Fluence, was commissioned by the Victorian Government and the Australian Renewable Energy Agency (ARENA) to design, construct and operate Victoria’s first utilities scale grid-connected Battery Energy Storage System. AusNet Services owns the Ballarat Energy Storage System.


This project is Victoria’s first utilities scale Lithium-Ion battery storage system, which is the size of nine shipping containers and has the capacity to power more than 20,000 homes for an hour before being recharged.

As the battery is within AusNet Services Ballarat Terminal Station, it is fully integrated into the electricity grid, where it contributes to meeting peak energy demand. It also helps to enhance the stability and security of the State's energy supply.

Knowledge Sharing

We contribute our experience to sharing knowledge about this project, to uplift the body of knowledge about battery services.

Report: Operational Report | July 2020
The purpose of this report is to share the learnings from the first twelve months of operation of the Ballarat System. Read the report.  

Report: Project Summary Report | August 2019
This report has been prepared to share knowledge on the installation and commission of a utility scale, transmission asset connected, Ballarat Energy Storage System. Read the report


Key project program dates were as follows:



Financial Close


First container shipment received


Final Battery shipment received


AEMO Registration


Commercial Operations



The following interactive graphic provides a representation of battery charging-discharging data against Victorian prices over the last 2 days.  

The full interactive version of this graphic, with capability to download and export the data can be accessed through the website of our consortium partner, EnergyAustralia.