In this US news roundup, OCI Energy, MN8 Energy, GridStor, and Grenergy advance battery energy storage system (BESS) projects in Texas, California, Colorado, and Georgia.

US sodium-ion (Na-ion) battery startup Alsym Energy and California-based renewables developer Juniper Energy have announced a 500MWh strategic partnership.

US renewable energy developer, Longroad Energy’s Sun Pond solar-plus-storage project in Maricopa County, Arizona, US has reached commercial operation.

Energy-Storage.news speaks with Elliot Mainzer, president and CEO of CAISO, about the ISO’s newly launched Extended Day-Ahead Market.

The California Energy Commission (CEC) has approved the the 300MW/1200MWh Soda Mountain solar project in San Bernardino County.

Arevon, Banpu Power (BPP) and Energy Vault have made BESS project announcements totalling 1,550MWh of capacity in the US.

In this US news roundup, updates on solar-plus-storage projects from Google and DTE Energy, Sunraycer, Invenergy and SRP, Idemitsu Renewables, and Clēnera.

Geothermal and battery storage firm Ormat Technologies’ 80MW/320MWh Shirk battery energy storage system (BESS) in Visalia, California, US, has reached commercial operation.

In this US news roundup, we have financing updates for GridStor, Arevon, and Primergy, related to energy storage projects in Texas, California, and Nevada, respectively.

California’s rapid adoption of energy storage has been a major success, but market participation is complex and competitive, write Matt Drazenovich of TWAICE and Chris Swanson of Fullmark Energy.