South Australia hits AU$20,300/MWh price cap twice in one evening; battery storage fleet captures AU$324,000

South Australia's SA1 trading region hit the NEM AU$20,300/MWh price cap twice on the evening of 21 June, as battery storage systems across the region captured significant revenue. The Mannum battery energy storage system (100MW/200MWh), optimised by a UK-headquartered firm, deli