The proposed AU$1 billion (US$650 million) 4-hour duration BESS will be located on land it owns near Mount Piper, a 1,400MW black coal-fired power plant to the northwest of the state capital, Sydney. . The Liddell Battery Energy Storage System (BESS) Project is being built at AGL Energy's (AGL) Hunter Energy Hub in New South Wales (NSW). The project infrastructure will include approximately 900 pre-assembled battery enclosures. (Credit: Z22/Wikipedia) The Final investment Decision (FID) on the. . Two out of three transformers at the Waratah Super Battery on the NSW Central Coast north of Sydney have shut down. Credit: Supplied/CEFC An industrial battery billed as the world's most largest has suffered a major outage in NSW. But when it comes to delivering reliable power, this isolation also presents a challenge, as the country is not able to connect to another electrical grid for backup. . The BESS will be located adjacent to the 1,400MW Mount Piper black coal-fired power plant. Image: EnergyAustralia. Australia's New South Wales government has approved plans for a 500MW/2,000MWh battery energy storage system (BESS) being developed by energy generator-retailer EnergyAustralia. The Waratah Super Battery, can deliver 850 megawatts of power, to support the state's network during times of major demand. Akaysha Energy built the battery and its CEO. . One of Australia's biggest batteries – and the biggest, ever, with grid-forming inverter capabilities – will begin construction in the new year, following a final investment decision by AGL Energy for its 500MW/1,000MWh Liddell project in New South Wales. AGL said on Tuesday it has reached FID on. .