Concentrated solar power (CSP), also called concentrating solar power or concentrated solar thermal, involves systems that collect solar heat for multiple purposes like cooking, desalination, or the generation of electric solar power, by using mirrors to concentrate a large area. Concentrated solar power (CSP), also called concentrating solar power or concentrated solar thermal, involves systems that collect solar heat for multiple purposes like cooking, desalination, or the generation of electric solar power, by using mirrors to concentrate a large area. A solar power tower at Crescent Dunes Solar Energy Project concentrating light via 10,000 mirrored heliostats, occupying an area of 13 million sq ft (1. The reasons for this are obvious: The sun is an inexhaustible source for power production. And it is not only a free fuel source but also a complete emissions-free source. Steam turbine. This is a list of the largest facilities generating electricity through the use of solar thermal power, specifically concentrated solar power. solar has compiled the. Concentrated Solar Power (CSP) or Concentrated Solar Thermal (CST) supplies green electricity, green heat and green hydrogen. The technology is mature and has a global track record of more than three decades.