The Australian state-owned energy company Synergy has submitted a hybrid renewable energy project in Western Australia for federal environmental assessment, featuring up to 1 GW of wind generation capacity, 500 MW of solar PV, and a 500 MW battery energy storage system (BESS) (Project application, 16/04/2026).
The Tathra Wind Farm, under review by the Australian Government, is located approximately 15 km east of Eneabba in Western Australia's Mid West region and will accommodate up to 140 wind turbine generators. The 500 MW solar component and 500 MW battery storage will be distributed across up to three separate facilities. The system's duration has not been disclosed.
Synergy obtained regulatory approval from the state's Environmental Protection Authority (EPA) in January 2026 (KEI, 14/01/2026). The Tathra project is part of Synergy's plan to replace retiring coal plants, including Collie A (240 MW) in 2027 and Muja 7 and 8 (227 MW each) in 2029, while the company is also developing several other wind projects.
Synergy's battery storage portfolio exceeds 3,500 MWh of energy storage capacity across Western Australia's South West Interconnected System (SWIS).
Several hybrid projects have been recently announced in Australia, as the country seeks to expand its storage capacity. Alinta Energy just announced the start of construction works on its Reeves Plains Energy Hub in South Australia (KEI, 17/04/2026). Works started on stage 1 of the project, which consists of a 250 MW/1 GWh battery and is scheduled to start operations in 2028.