A long-term power purchase agreement has been signed for the output of a 50MW solar farm with 200MWh of battery storage, by Desert Community Energy, one of several Community Choice Aggregator (CCA) energy suppliers in California.

Mitsubishi Power Americas and Powin Energy have been appointed to retrofit 640MWh of batteries to solar PV plants in California, while a community energy group in the state has just signed a power purchase agreement for a 100MW solar plant with 150MW / 600MWh of storage.

A debt financing deal closed by independent power producer (IPP) sPower for a 100MW / 400MWh battery storage project in California demonstrates that significant project finance investment can be achieved for large-scale battery facilities.

The Green Investment Group (GIG), a company owned by financial services group Macquarie, is investing an unspecified sum into esVolta, a US-headquartered developer and owner of utility-scale energy storage projects.

Canadian Solar said that construction has begun on a large-scale solar PV project combined with a four-hour duration battery storage system in California which the company has just sold to Goldman Sachs Renewable Power.

A project which will combine and then assess four different types of non-lithium technologies for long-durations of energy storage has been awarded a grant by the California Energy Commission (CEC).

PG&E, one of California’s main investor-owned utilities (IoUs) has awarded contracts for more than 1,000MW of battery energy storage projects to be deployed in its service area by the end of 2023, the company’s senior VP for energy policy and procurement has said.

For California to achieve its target of eliminating greenhouse gas (GHG) emissions from its electricity sector by 2045, the state will need to deploy between 45GW and 55GW of long-duration energy storage, a new study has found.

Another contract has been signed for energy from a large-scale solar-plus-storage plant by one of California’s Community Choice Aggregator (CCA) groups.