In a single system, lengthy troughs of U-shaped mirrors target daylight on a pipe of oil that operates with the middle. The recent oil then boils water for electricity generation. In 2011, the International Electricity Agency stated that "the event of very affordable, inexhaustible and cleanse solar Electrical power technologies https://sol-rni-energie19753.bloggazza.com/18951683/everything-about-záložní-zdroj-pro-čerpadlo