AEMO has revealed a big increase in battery energy storage system (BESS) output in Australia’s National Electricity Market (NEM).

A reduction in price volatility has seen BESS revenue decrease by 40% in Australia’s NEM month-on-month in March 2025.

Modo Energy has said that revenue for BESS in Australia’s NEM fell by 7% month-on-month in January, despite revenue tripling in Queensland.

Modo Energy has said that battery energy storage systems (BESS) in Australia’s National Electricity Market (NEM) earned an average of AU$148,000/MW (US$92,810/MW) in 2024, a 45% increase year-on-year.

AEMO says the NEM has seen energy trading for battery energy storage systems (BESS) revenue rise 97% year-on-year (YoY) to AUS$25.4 million.

The newest ancillary services product in Australia’s National Electricity Market (NEM) has been forecast to offer “significantly higher” revenues than other opportunities for battery storage.

Akaysha Energy took Final Investment Decision (FID) on Queensland BESS, while another of its projects has achieved key grid code compliance.

Among highlights of All-Energy Australia were announcements from major players including Sungrow, Ingeteam and Hithium.

Proposed new ancillary service market rules could adversely impact business case for battery storage, Cornwall Insight Australia says.

Work is set to begin “within weeks” on a BESS project at the site of a coal power plant in New South Wales, Australia.