Battery energy storage systems in Australia’s NEM are facing new operational and revenue challenges due to minimum system load events.

A “silver buckshot, not a silver bullet” has emerged as the rallying cry for Australia’s energy storage, said Paul Hunyor of Wollemi Capital.

Battery storage equipped with optimisation platforms not specifically designed for Australia’s NEM missed revenue opportunities during the 10 October price spike, according to Sahand Karimi, co-founder and CEO of OptiGrid.

Battery energy storage revenues in Australia’s National Electricity Market (NEM) fell 61% in September 2025 to AU$85,000/MW (US$56,712/MW) as price volatility eased across the grid, according to new research from Modo Energy.

Several Chinese companies active in the energy storage space have recently released their financial reports for H1 2025, with the majority posting strong growth. Their energy storage business segments have been a key driver of that growth.

Sahand Karimi, CEO of OptiGrid, tells ESN Premium that the majority of BESS projects in the NEM “rarely go fully contracted”.

Energy storage developer and system integrator Energy Vault has acquired the 125MW/1,000MWh Stoney Creek BESS in New South Wales, Australia.

Grid-scale BESS discharge has hit an all-time quarterly high in Australia’s National Electricity Market for an average of 162MW in Q2 of 2025.

Renalfa IPP has secured a €315 million (US$367 million) financing package from an EBRD-led consortium to support a 1.6GW renewables, 3.3GWh BESS rollout in Bulgaria, Hungary, Romania, and North Macedonia.

Renewable energy developer Gurin Energy has appointed Saft as the technology provider to a gigawatt-hour-scale battery energy storage system (BESS) in Japan.