In this Energy-Storage.news roundup,  Hydrostor receives permitting approval for its California project, Hawaiian Electric is set to begin construction on a Maui battery energy storage system (BESS) and Peregrine and Wärtsilä advance construction of a Texas BESS.

California Community Choice Aggregator (CCA) Clean Power Alliance (CPA) last week (8 December 2025) moved one step closer to executing agreements for offtake with two companies developing innovative thermal battery storage projects. 

Energy-Storage.news Premium speaks with John Farrell, Co-Director of The Institute for Local Self-Reliance (ILSR), on rising utility costs and the role energy storage can play.

Clearway Energy Group has negotiated tolling agreements with SDG&E for one of its solar and storage complexes in Kern County, California.

An energy storage agreement (ESA) between Toronto, Ontario-headquartered developer Hydrostor and California community choice aggregator (CCA) Central Coast Community Energy (3CE) is set to be amended for the third time. 

California community choice aggregator (CCA) Orange County Power Authority (OCPA) and independent power producer NextEra Energy Resources (NEER) have agreed on the terms of a flexible offtake agreement relating to a 115MW/460MWh standalone BESS. 

California’s largest electric utility is continuing its push to establish a net-zero energy system by 2040, finalising an offtake agreement for 1.8GWh of battery storage capacity with Aypa Power.

California community choice aggregator Ava Community Energy’s new BESS offtake agreements with EDP Renewables incorporate measures to share policy risks.

Avantus has raised more than US$500 million for 200MW/500MWh Aratina 1 BESS project in Kern County, California.