The Alto da Vaca wind farm is located in the Cabreira Mountains, municipality of Vieira do Minho in the district of Braga. The wind farm is comprised of four E40 Enercon wind turbines, of 0.6 MW each, connected to the substation through underground electric cables, and thereafter connected to the REN substation by overhead lines. dst was the contractor for the civil works and Enercon’s subcontractor for construction of the wind turbine foundations. Enercon was the contractor for the wind turbines. The civil works comprised the construction of new roads and refurbishment of existing ones, building 4 E-40 foundations (concrete tower), construction of respective assembly platforms, excavation and backfill of cable trenches, construction of longitudinal and transverse drainage systems, construction of the switching station and environmental upgrading of works areas.