Hazelwood BESS 2, the 150 MW/300 MWh plant of ENGIE in Victoria, Australia, is to be equipped by Sungrow with 66 ST5015-UX battery units, 33 SC6900UD-MV PCS inverters and an EMS3000 controller. The plant has been designed with grid-forming capability, so that it can support the voltage and frequency of the network, and commercial operations are targeted for 2028.
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Sungrow, a China-based maker of PV inverters and energy storage systems, is to supply 66 ST5015-UX battery units for the 150 MW/300 MWh Hazelwood BESS 2 of ENGIE in Victoria, Australia. The company announced its role as the technology provider on 27 October 2026, and Elecnor is serving as the BOP contractor on the project.
Those 66 units belong to the PowerTitan 2.0 series, which has been designed for utility-scale applications. They are liquid-cooled, which helps them to maintain a stable operating temperature, and they carry a battery management system that supports their safety and their reliability over the long term. They will be paired with 33 SC6900UD-MV PCS inverters, which are to handle the power conversion, and the EMS3000 smart controller of Sungrow will complete the package.
The equipment is also to give the plant a grid-forming capability, which has a direct bearing on the Victorian grid. The plant will be able to support voltage and frequency stability and to respond rapidly to changing conditions on the network. According to Sungrow, these functions will help the grid to accommodate higher levels of variable renewable generation. As a store of electricity, the plant will also help to balance supply and demand in Victoria and across the National Electricity Market (NEM).
The Hazelwood BESS 2 represents an important step in advancing grid-forming energy storage in Australia. Through our collaboration with ENGIE, we aim to bring advanced energy storage technology to support grid stability and enable greater integration of renewable energy. We look forward to contributing our expertise and supporting the continued development of a more resilient energy system in Victoria.
Thomas Hou, Managing Director of Sungrow Australia
ENGIE reached financial close on the 150 MW/300 MWh expansion in October, and commercial operations are targeted for 2028. The project is one of several large batteries that are advancing in Victoria, where GenusPlus has won a contract for the 1.86 GWh Birdwood BESS in Wodonga and the Warracknabeal Energy Park has been approved with up to 1 GWh of BESS.