Southern Power names suppliers for California battery energy storage project


Southern Power awarded Mitsubishi Power Americas and Powin LLC an order for two utility-scale battery energy storage system (BESS) projects totaling 640 MWh. The projects are intended to enhance California’s grid reliability with additional flexible resource capacity for integrating intermittent renewable energy into the grid.

The BESS projects are designed for a 20-year life cycle and four hours of energy storage duration. Southern Power’s 205 MW Garland Solar Facility in Kern County will add 88 MW and 352 MWh of energy storage. Its 204 MW Tranquillity Solar Facility in Fresno County will add 72 MW and 288 MWh. Both projects are scheduled to come online later this year.

The energy storage projects will be owned in partnership with AIP Management and Global Atlantic Financial Group. Both ,have existing ownership interests in the Garland and Tranquillity solar facilities that went into commercial operation in 2016. Southern Power operates the solar projects and will be responsible for operating the energy storage projects upon completion.

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