Gemasolar Thermosolar Plant

Gemasolarfa is a concentrated solar power plant with a molten salt heat storage system. It is located within the city limits of Fuentes de Andalucía in the province of Seville, Spain.Design and specificationsThe plant is of the solar power tower type CSP and uses concepts pioneered in the Solar One and Solar Two demonstration projects, using molten salt as its heat transfer fluid and energy storage medium. Originally called Solar Tres, it was renamed Gemasolar.The project, which has received a subsidy of five million Euros from the European Commission and a loan of 80 million Euros from the European Investment Bank, makes use of the Solar Two technology tested in Barstow, California, but is approximately three times the size. It makes use of several advances in technology after Solar Two was designed and built.Gemasolar is the first commercial solar plant with central tower receiver and molten salt heat storage technology. It consists of a 30.5ha solar heliostat aperture area with a power island and 2,650 heliostats, each with a aperture area and distributed in concentric rings around the 140m tower receiver. The total land use of the Heliostats is 195haThe most innovative aspects of the plant, which belongs to the company Torresol Energy, are its molten salt receiver, its heliostats aiming system and its control system. In addition, its storage system allows it to produce electricity for 15 hours without sunlight (at night or on cloudy days). This storage capacity makes its solar power manageable so that it can be supplied based on demand. The plant has already been able to supply a full day of uninterrupted power supply to the grid, using thermal transfer technology developed by SENER.