Sungrow has announced the official inauguration on April 1st of Global Power Generation Australia’s Cunderdin hybrid solar PV + BESS project, to which it made a key contribution. With a total inverter capacity of 136 MVA and a total storage capacity of 55MW / 220MWh, the project stands as Australia’s largest DC-coupled solar-plus-storage installation to date and marks GPG’s first hybrid project.
Strategically located in Cunderdin, Western Australia, the project features Sungrow’s fully DC-coupled system architecture, which connects the PV system directly with battery storage to form an integrated and highly efficient energy solution. This setup enhances overall energy efficiency by enabling power to flow directly from the PV array to the battery without AC conversion, minimising energy loss and improving system performance. The configuration also supports curtailment recapture, storing excess solar energy that would otherwise go unused, and enables advanced functions such as energy time shifting and ancillary services—delivering electricity during peak hours and supporting grid needs including frequency and voltage regulation.
As part of the South West Interconnected System (SWIS)—Western Australia’s primary electricity network—the project plays a critical role in enhancing grid stability and renewable energy penetration. By providing peak shaving, load balancing and real-time grid response capabilities, the system helps address the intermittency challenges of solar energy and ensures greater flexibility for the wholesale electricity market.
The project features 80 units of Sungrow’s PowerTitan energy storage system, equipped with advanced liquid-cooled thermal control technology. AI-powered cell-level monitoring, combined with cluster-level balancing, ensures efficient performance and operational reliability across various conditions. The system’s modular design further streamlines installation and maintenance, offering long-term adaptability.
Sungrow’s extensive experience in grid connection solutions across Australia has played a key role in the successful implementation of the Cunderdin project. With globally leading grid-connection capabilities, the company enables high-efficiency integration into large-scale power systems. In this case, the solution supports dynamic grid response, voltage regulation and frequency control, ensuring smooth and stable interaction with the SWIS.
The project reflects the shared strategic vision of Sungrow and its client GPG in advancing the clean energy transition in Australia. For Sungrow, the project affirms its technical leadership, commercial delivery capability and long-term commitment to the Australian energy landscape, country director for Australia Joe Zhou commenting: “We are delighted to support GPG in delivering one of the most advanced solar and storage projects in Australia, reaffirming Sungrow’s commitment to accelerating the global clean energy transition.”
