TSK develops its activity in the field of renewable energies, where many of its projects are in execution. One of the most highlighted “Turn Key” project is the power island of two cylindrical-parabolic thermosolar plants (La Florida and La Dehesa). They are the two most important projects in the thermosolar energy sector in Spain, promoted by the SAMCA group (from Aragon region) as a part of the development of the renewable energies respecting the environment by avoiding the CO2 emission of more than 150.000 tons in the atmosphere during its activity period. The technology consists of use of the direct solar radiation concentrated on the cylinder-parabolic type receivers that are installed in a huge dimensioned solar field to heat a thermal fluid (fuel product) in its circuit over the field. TSK is also executing several wind farms for the EDP electric company.