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.

A flurry of large-scale BESS project news in the US from four major developer-operators, coinciding with the country’s largest clean energy trade show RE+.

Solar PV and battery energy storage system (BESS) firm Canadian Solar has secured battery supply agreements and long-term service agreements through its subsidiary e-Storage for two US BESS projects developed by Aypa Power, in the ERCOT and California markets.

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

Developer and operator esVolta has completed a preferred equity transaction with investor Captona for three BESS in Texas, US, while GridStor has bought a 400MWh project in Arizona.

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

Developer Upstream Energy has negotiated a resource adequacy (RA) agreement with California community choice aggregator (CCA) Clean Power Alliance (CPA) associated with the developer’s standalone Olinda BESS project located in Los Angeles County, California.

Gridstor has started commercial operations at its 60MW/160MWh Goleta battery storage facility in the US state of California.

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

Independent accreditation and testing company DNV GL has created Battery XT, the first testing-based verification of battery lifetime for Li-on batteries.