The California Public Utilities Commission (CPUC) has approved new projects by the state’s three investor-owned utilities, including nine battery energy storage system (BESS) facilities proposed by PG&E totalling 1.6GW/6.4GWh.

US national energy laboratory Berkeley Lab has released its top 10 findings from a research programme into renewable projects that pair generation with energy storage, so-called hybrid projects.

A region of southern California desert has the potential to become the hub of a “world-class lithium industry”.

Californian investor-owned utility PG&E has commissioned the 182.5MW/730MWh battery energy storage system supplied by Tesla at its Moss Landing substation.

Battery energy storage is load shifting up to 6GWh a day on the California ISO (CAISO) grid, storage sector manager Gabe Murtaugh told Energy-storage.news, as the operator considers a market design change linked to batteries’ state of charge (SoC).

Deadline for commissioning large-scale battery storage for California utility Southern California Edison might be missed, Ameresco has said.

Californian investor-owned utility San Diego Gas & Electric has released its decarbonisation roadmap study.

Southern Power has turned two four-hour battery energy storage systems (BESS) totalling 640MWh at two of its solar facilities in California online.

Investor-owned utility SDG&E is turning its first lithium iron phosphate-based battery energy storage system (BESS) online today, while Stanford university says it has hit 100% renewable electricity with the offtake from Goldman Sachs’ recently-commissioned Slate solar-plus-storage project.

It’s been a positive week for thermal energy storage technology, with utility Edison International validating a cold storage solution, a collaboration between two groups to achieve 100% round trip efficiency, and an acquisition involving several intellectual property rights patents.