AGL has signed agreements with Finland's Wartsila and US storage provider Fluence for the supply up to 1000 megawatts of grid-scale battery storage.
Chief Operating Officer, Markus Brokhof said Wartsila and Fluence were chosen through a competitive tender process for their capability, experience and pricing as well as their alignment with AGL's values and strategic objectives.
"This framework agreement is another example of AGL getting on with the business of energy transition and will enable delivery against our commitment to build 850MW of grid-scale battery storage by FY2024," Mr Brokhof said.
"We're excited to see our grid-scale battery plans begin to come to life; we know energy storage technology is critical in creating cleaner and smarter distributed energy infrastructure.
"Our grid-scale battery plans provide critical firming capacity to the market and will play a leading role in the energy industry's transition over the coming decades."
The first phase of the Liddell project will involve the installation of a 150 megawatt battery, however, AGL is seeking approval for a battery of up to 500 megawatts.