Ormat Technologies, Inc. announced the commercial operation of the 5 MW/20 MWh Tierra Buena Battery Energy Storage System (Tierra Buena BESS). The Tierra Buena BESS will provide local resource adequacy, to two Community Choice Aggregators, Redwood Coast Energy Authority and Valley Clean Energy, at 2.5 MW each, under 10-year agreements. In addition, the facility will provide ancillary services and energy optimization through participation in merchant markets run by the California Independent System Operator (CAISO).

The Tierra Buena BESS is Ormat's third operating BESS facility in California, which increases Ormat's energy storage portfolio to 88 MW/196 MWh. The facility will connect to the adjacent PG&E distribution circuit and is expected to generate revenues beginning in July 2022.