The power islands have an installed capacity of 550 MW – enough to supply efficient and flexible electricity to about 450,000 average California homes.
Owned and operated by NRG Energy, El Segundo will generate power to meet peaking and intermediate load. The two units can achieve 300 MW in less than 10 minutes, allowing the plant to back up intermittent renewable power generation, such as wind and solar power, to maintain a steady supply of power to the grid.
The main components of the plant are an SGT6-5000F gas turbine, an SST-800 steam turbine, an SGen6-1000A generator, an SGen6-100A-2P generator as well as a heat recovery steam generator and an air-cooled heat exchanger.
Siemens also supplied the complete electrical equipment and the SPPA-T3000 power plant instrumentation and control system. The company also provided the engineering services and commissioning of the power plant.