140MW / 560MWh Energy Storage System Energization In California

Power Factors has successfully completed the commissioning of the energy management system (EMS) and supervisory control and data acquisition (SCADA) for a 140 MW/560 MWh energy storage project located in Kings County, California, USA. 

The 4-hour storage project complements a 300 MWAC solar plant that provides low-cost, clean energy to approximately 126,000 California homes following the demand curve which is higher in low or no-sun evening hours.

The project is divided into sub-plants, each with a separate power purchase agreement (PPA) that calls for independent control and performance evaluation. Our EMS efficiently controls each subfield coordinating the battery energy storage system (BESS) control with the PV plant active and reactive power production when required.

The functionality includes energy shifting, state of charge (SOC) management and SOC balancing, frequency and voltage support, and ramp rate control at subfield levels and the overall site level.

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