This model shows a guyed mast used to measure wind speed when evaluating planned wind farms. The mast reaches heights of up to 150 m and is mounted on undeveloped land along a planned windmill axis. The structure is based on triangular steel tube trusses with three sets of prestressed cables per level for optimal stabilization. To ensure accurate measurement data, anemometers and weather vanes are correctly positioned in accordance with ISO 61400-12-1. Structural analysis and design were carried out by Lasser Eólica S.L. in Madrid, Spain (© Lasser Eólica S.L.).