LS Energy Solutions has commenced commercial operations at the Big Rock energy storage site in Imperial County, California. The 200-MW/400-MWh project, developed and operated in partnership with Gore Street Energy Storage Fund (GSF), is now providing resource adequacy (RA) and ancillary services for the California Independent System Operator (CAISO) electrical grid. “We are thrilled to… The post 400-MWh Big Rock energy storage project now online for CAISO appeared first on Solar Power World.