Primergy has signed a “long-term” power purchase agreement (PPA) with California community energy supplier San Diego Community Power (SDCP).

We catch up with the president of Canada-headquartered Hydrostor, Jon Norman, about the firm’s advanced compressed air energy storage (A-CAES) tech, current projects, future plans and being a developer versus system integrator.

News in brief from around the world in energy storage, featuring Ormat Technologies, Wärtsilä and Canadian Solar.

Developer esVolta has secured tax equity financing for a 30MW/60MWh BESS in California while Atlantica Sustainable Infrastructure has signed PPAs for two projects with one of the state’s utilities.

California has passed 5GW of grid-scale battery storage energy storage (BESS) projects, grid operator CAISO has revealed.

Ormat Technologies has signed a PPA for a California solar-plus-storage plant, shortly after announcing the start of commercial operations at two standalone battery projects.

Swedish wind power pioneer Eolus has made a final investment decision (FID) on a battery storage project in California, its third in the US, with a targeted commercial operation in 2024.

Leeward Renewable Energy has signed 15-year PPA with utility Southern California Edison for a 126MW battery storage project in Kern County.

California Community Choice Aggregator (CCA) Sonoma Clean Power has signed a deal for the output of a large-scale solar-plus-storage plant, while another CCA has launched a Request for Offers (RFP).