The Board of Supervisors (BoS) for Arizona’s Pinal County has given the go-ahead to developer and IPP esVolta to construct 3.2GWh BESS within its unincorporated territory, and two utilities are in talks to procure some of its capacity.

Supervisors in Maricopa County, Arizona, have approved a 100MW/400MWh battery storage project from National Renewable Solutions (NRS).

The US development arm of Milan, Italy-headquartered developer Nadara has encountered a setback in its pursuit of a 200MW hybrid BESS destined for Arizona.

Nearly 70% of the 4.5GW/12.7GWh of grid-scale BESS that came online across the globe last month was in China.

IPP Enlight Renewable Energy has secured a US$1.44 billion debt financing for the Snowflake A solar-plus-storage project in Holbrook, Arizona, US.

IPPs BrightNight and Cordelio Power have reached financial close on the 300MWac solar PV, 300MW/1,200MWh battery energy storage system (BESS) Pioneer Clean Energy Centre in Yuma, Arizona, US.

Recurrent Energy has closed a construction financing for an energy storage project in Arizona. Meanwhile, Cypress Creek Renewables has reached financial close for its solar-plus-storage project in Colorado.

Ameresco has put Arizona’s largest behind-the-meter battery energy storage system (BESS) into operation, meanwhile Alliant Energy has begun operating Wisconsin’s largest BESS to-date.

Fluence has announced a solar-plus-storage project in Arizona, while Greenflash Infrastructure adds to its Texas BESS portfolio.

Energy storage developers are securing significant capital and strategic partnerships, with ESS Inc launching a 50MWh iron flow battery pilot, Energy Vault closing a US$300 million investment, and NineDot obtaining US$175 million in debt financing.