INTEGRATED COMBINED CYCLE AND RENEWABLE ELECTRICAL POWER GENERATION SYSTEM

Systems and methods for operating an integrated electrical power plant. A site power output setpoint is received for an electrical power interconnection point that receives power from a combined cycle electrical power generation plant and a renewable energy electrical power generation plant. A thermal energy storage system provides heat to generate steam to drive a steam turbine of the combined cycle electrical generation plant. An indication of a total electrical output delivered to the electrical power interconnection point is received. Based on a difference between the indication and the setpoint, an adjustment is made to at least one of: steam generated by heat delivered from the thermal energy storage system; or electrical energy delivered by the renewable energy electrical power generation plant to generate thermal energy in the thermal energy storage system.