research and development activities along with ENEA. Based on the studies of Nobel laureate Carlo Rubbia, in 2010 Enel Green Power built the Archimede combined cycle power plant in Priolo Gargallo in Sicily, with a total capacity of 5 MW. In the plant, parabolic mirrors focus the sun's heat on a fluid of molten salts that reaches temperatures of over 500 °C/932 °F and is able to retain heat for several hours, turning water into steam that then activates the traditional steam turbines system to produce electricity. The objective is to increase the efficiency of this type of plants so as to make them competitive compared to other sources. Hydropower Enel Green Power operates mainly in Europe and America. It manages a renewable capacity of around 17 GW in Europe and 10 GW in America. Wind power Enel Green Power's experience with wind power dates back to 1984, when Enel built the first Italian wind farm in Sardinia. In October 2008, in Kansas, US, the Smoky Hills Wind Farm, with a capacity of 250 MW, came into service, while in January 2008 in Snyder, Texas, Enel Green Power completed the installation of 21 wind turbines of 3 MW each. In 2021, the 269MW Dolores wind farm began operations in Mexico with 83 Nordex turbines. Wind-solar hybrid and cogeneration In 2014, in Ollagüe, Chile, Enel Green Power began the construction of a mini hybrid solar-wind cogeneration plant for the production of both electricity and hot water, which runs independently from the national electricity system and is able to meet the average need of 150 families with an average capacity of 232 kW. International presence Europe More than half of Enel Green Power's 1200 plants are located in Italy. The production mix includes hydropower, wind power, solar power, and geothermal power. Enel Green Power has facilities in the Iberian Peninsula with 300 plants (hydropower, wind, and solar). This presence is the result of the integration of renewable energy activities of Enel and Endesa, as well as the construction and activation of new plants, including the Totana solar park (Fonte 2) and the Sierra Costera (Fonte 3) wind farm, which have been connected to the grid at the end of 2019. In Romania, Enel Green Power is present with 12 plants and a mix of wind and photovoltaic technology. Enel Green Power is present in Greece with 60 power plants. It manages the