California utility PG&E is developing a long-duration energy storage microgrid combining batteries and green hydrogen, in partnership with Energy Vault, the company known for its gravity-based solution.
Invinity Energy Systems and Eos Energy Enterprises are providing long duration energy storage systems to the ‘biggest renewables microgrid project in the US’, being developed for the Viejas Tribe of Kumeyaay Indians in Southern California.
California investor-owned utility SDG&E has completed construction of a 40MW battery energy storage system (BESS) and started work on four storage-enabled microgrids totalling 39MW.