Australia’s National Electricity Market (NEM) achieved multiple battery energy storage records during the weekend of 27-28 September 2025, highlighted by total storage capacity reaching 6,591.5MWh for the first time.

RWE Renewables Australia has successfully registered Australia’s first 8-hour duration battery energy storage system (BESS) with the Australian Energy Market Operator (AEMO).

Two battery storage offtake agreements have been signed in Australia, representing over 2GWh of storage capacity.

Green Gravity has signed an agreement with mining company Wollongong Resources to trial its gravitational energy storage in NSW, Australia.

Someva Renewables and AGL Energy have received the federal greenlight to develop a 2GWh wind-plus-storage project in NSW, Australia.

Developer Lightsource bp has commenced construction on a 49MW/562MWh BESS co-located at the 585MWdc Goulburn River solar plant in Australia.

Hydrostor has secured US$55 million in funding from Export Development Canada (EDC) to advance development activities for its 200MW/1,600MWh Silver City Energy Storage Centre project in Broken Hill, New South Wales, Australia.

A 12GWh pumped hydro project and a 1,200MWh battery energy storage system in New South Wales (NSW) have been submitted to Australia’s Environment Protection and Biodiversity Conservation (EPBC) Act.

“It’s the most powerful BESS in the world,” Nick Carter of Akaysha Energy, tells ESN Premium after switching on the Waratah Super Battery in New South Wales, Australia.

A 130MWh battery energy storage system owned by the Australian arm of Iberdrola has officially entered AEMO’s Market Management System.