ACEnergy sells 250MW Yanco BESS to BW ESS in New South Wales, Australia

Type: Sale · Technology: Storage · Country: Australia · Capacity: 250 MW · Announced: 2026-08-11

BW ESS has acquired the 250MW/1,000MWh Yanco Battery Energy Storage System (Yanco BESS) in New South Wales from Australian renewable energy developer ACEnergy. The Riverina project will connect to the Yanco 132kV substation and provide firming capacity, energy arbitrage, and system security services to the National Electricity Market. Construction will begin later this year, with commercial operations targeted for 2028, capable of supplying around 430,000 homes for four hours. CATL has been appointed as the system integrator, whilst ACLE Services will handle balance of plant works and provide long-term operations and maintenance services. ACEnergy developed Yanco BESS to ready-to-build status, securing land, planning approval, grid connection, and project rights and contracts.

Analysis

BW ESS has acquired the 250MW/1,000MWh Yanco Battery Energy Storage System in New South Wales, Australia, from ACEnergy, with the sale announced on August 11, 2026. BW ESS operates in 6 countries and has 11 GWh of BESS under or pre-construction. ACEnergy, an Australian renewable energy developer, has over 169 MW of operational capacity and developed the Yanco BESS to ready-to-build status, securing land, planning approval, grid connection, and project rights and contracts. CATL has been appointed as the system integrator, and ACLE Services will handle balance of plant works and provide long-term operations and maintenance services for the project. Construction is targeted to begin later this year, with commercial operations expected in 2028, connecting to the Yanco 132kV substation.

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