RWE has brought its biggest utility-scale BESS project in the US closer to the start of commercial operations.

California Community Choice Aggregator (CCA) Sonoma Clean Power has signed a deal for the output of a large-scale solar-plus-storage plant, while another CCA has launched a Request for Offers (RFP).

Developers Spearmint Energy, On.Energy, Nexus Renewables and Granite Source Power have collectively secured US$300 million for US battery storage projects, the bulk by Spearmint.

AES Corporation has added the 2GW Bellefield solar-plus-storage project to its portfolio after acquiring it from the project developer, Avantus.

US energy storage developer Gridstor has announced the start of construction of its first project, a 60MW/160MWh BESS in California.

The US Bureau of Land Management (BLM) has given the green light for construction to begin on a second large-scale battery storage system at Desert Sunlight.

Redflow will supply a 20MWh zinc-bromine flow battery energy storage system to a large-scale solar microgrid project in California.

California governor Gavin Newsom has outlined how the state will reach 100% decarbonisation by 2045, in a policy update which put energy storage front-and-centre in enabling 24/7 clean power.

Mobile battery energy storage system (BESS) firm Moxion has announced plans to build a manufacturing plant in California with 7GWh of production capacity, in a launch ceremony attended by the state governor.

Some 710MW of battery storage came online in the US in the first three months of the year, of which around 70% was in the ERCOT, Texas market, S&P Global said.