Battery storage can turn record-high instances of negative spot pricing in Australia’s National Electricity Market (NEM) into investment opportunities.

On day one of the Energy Storage Summit Australia 2025, the audience heard that although 2 to 4-hour duration battery energy storage systems (BESS) are favourable, longer durations are starting to challenge this.

“BESS project financing is rapidly evolving,” says Niall Brady of Australia’s Clean Energy Finance Corporation (CEFC).

Thimo Mueller of AEMO Services, believes the value of energy storage in Australia will be higher than investor expectations.

Rio Tinto has penned an offtake agreement to secure 2.1GWh of BESS capacity from an Edify Energy-owned asset in Queensland, Australia.

Ark Energy has penned a battery supply agreement with Hanwha Energy for a 275MW/2,200MWh BESS in northern New South Wales, Australia.

Ahead of the Energy Storage Summit Australia 2025, which will take place next week (18-19 March) in Sydney, we take a look at some of the key debates set to take centre stage at the event.

AGL Energy has submitted a 3,200MWh PHES project in New South Wales to the Australian government’s EPBC Act.

Tim Buckley of the Climate Energy Finance speaks to ESN Premium about how Australia-Chinese relations could provide an energy storage boom.

Over 6GW of energy storage capacity has been included within the Australian government’s inaugural National Renewable Energy Priority List.