Three US battery energy storage system (BESS) developers, GridStor, Flatiron, and Jupiter Power, have advanced BESS projects totalling 1.6GWh across Arizona, Massachusetts, and Michigan.

Renewables developer and independent power producer (IPP) TagEnergy has acquired Australian developer ACE Power, adding 6GW of energy storage and renewables projects to its portfolio.

“Battery energy storage systems (BESS) typically change ownership between two and four times during their 40-year lifecycle,” John Sheehy, CEO of Pottinger, said on day two of the Battery Asset Management Summit Australia 2025 this morning.

Two North American companies, Powin and Li-Cycle, were recently acquired by FlexGen and Glencore, respectively, after announcing bankruptcy.

A double-header of Poland grid-scale BESS news, with GoldenPeaks Capital entering the market with a two-project acquisition, and R.Power securing a PPA for a solar-and-storage project.

HMC Capital has completed the acquisition of Neoen’s energy storage and renewables portfolio in Victoria, Australia.

A lithium-sulfur battery startup has purchased Northvolt’s battery storage system factory in Poland and intends to reopen it immediately.

Viridi Parente has acquired the former Moxion Power production facility in Richmond, California, US, and secured a US$9.3 million grant from the California Energy Commission (CEC).

Developer-operator GridStor has acquired a 150MW/300MWh battery energy storage system (BESS) project in Texas, US from Balanced Rock Power (BRP).

Developer-operator GridStor has acquired a battery energy storage system (BESS) project in Oklahoma, US totalling 200MW/800MWh from Black Mountain Energy Storage (BMES).