Among renewable energies, one of the fields in which Spain (ultimate parent location) has been a world leader is Wind Energy. ISOTRON Saudi has built more than 2.500 MW of wind power for major companies: Nordex, EDP Renewables, Vestas, Iberdrola, Acciona, E.ON, Gamesa,..., providing a full EPC from initial design, civil works, electrical assembly and power transmission system (substation and power line), including the annual maintenance of the wind farm.