August 14, 2026
The BESS (pictured) uses grid-forming inverter technology, distinguishing it from conventional grid-following battery systems. Image: Origin Energy.
Origin Energy has confirmed that its 300MW/650MWh Mortlake battery energy storage system (BESS) in south-west Victoria has commenced commercial operations, following completion of major commissioning works.
Origin Energy is one of Australia’s largest energy companies, operating as both a generator and retailer across electricity, gas and renewable energy.
The Mortlake facility is located at the site of Origin’s existing Mortlake Power Station, around 200km west of Melbourne, and connects directly to AusNet’s 500kV switchyard through a dedicated substation.
