With reducing capex costs and changing market dynamics the sweet spot for BESS duration in Australia's NEM is on the increase.

Energy project modeling in the Australian National Electricity Market
Australia’s National Electricity Market (NEM) covers Queensland, New South Wales, Victoria, South Australia, and Tasmania. It is an energy-only gross pool Spot market with 5-minute settlement, and includes Frequency Control Ancillary Services (FCAS) and Wholesale Demand Response (WDR).