• Origin extends operation of Eraring Power Station to April 2029
• Extension supports energy supply in NSW through energy transition
• Eraring battery to deliver 700MW / 3,160MWh of storage capacity

Origin Energy Limited has advised the Australian Energy Market Operator (AEMO) that it will extend the operation of all four units of the Eraring Power Station from 19 August 2027 to 30 April 2029, to support energy supply in NSW through the energy transition. Extending Eraring's operation reduces risks to system security highlighted by AEMO in its recently released Transition Plan for System Security and enables the plant to continue to support reliable power to NSW households and businesses. Origin CEO Frank Calabria stated that the decision was made after assessing a range of factors, including the needs of customers, market conditions and the important role the plant plays in the NSW energy system. Good progress is being made on the delivery of new energy infrastructure including major transmission works and projects like the large-scale battery at Eraring, but it has become clear Eraring Power Station will need to run for longer to support secure and stable power supply. The extension provides more time for renewables, storage and transmission projects to be delivered, and reflects uncertainty regarding the reliability of Australia's aging coal and gas fleet. Origin has made significant investment in the maintenance of Eraring's four units over many years which has supported reliable and increasingly flexible operations. The Eraring Battery commenced commercial operation in late 2025 (stages one and three), with the final stages anticipated to come online in the first quarter of 2027, including the recently approved fourth stage which extends the dispatch duration of stage two to nearly six hours. Once all stages are complete, the Eraring battery will deliver 700MW / 3,160MWh, providing an average of 4.5 hours of storage capacity in NSW.

Origin does not intend to invest in any further major maintenance overhauls ahead of the plant's April 2029 retirement. The extension of Eraring operations is not expected to affect Origin's 2030 emissions reduction targets and long-term ambition to achieve net zero emissions by 2050.