5 sites around the world achieve 1.7% additional AEP Validating the actual performance gains from aerodynamic improvements is a challenging task. Vestas conducts rigourous validation on wind farms across the globe to accurately verify the effect of our Aerodynamic Upgrades. Over a period of12 months, five sites on two continents have been undergoing tests and validations to confirm the estimated production gains. The validated results from the test sites, representing four different turbine platforms, show an average AEP gain of 1.7%. Confirmed estimates and proven versatility The results confirm, and in all cases exceed, the AEP gains estimated prior to installation. Vestas uses state-of-the-art tools to provide gain estimates, which are generally conservative and usually outperformed by the validated production gains. The field results also underline the broad applicability of Aerodynamic Upgrades across turbine platforms and in different wind conditions, with none of the sites gaining less than 1.1% additional AEP during the 12 months validation period. Ongoing monitoring of the sites will further refine the understanding of long-term performance of the upgrades. Highlights No. of sites 5 Avg. AEP gain 1.7% Range of AEP gains 1.1-1.9% Turbine platforms V90-2.0MW® V100-1.8MW® V100-2.0MW® V90-3.0MW® Location North America, South Europe Example of gain table from V90-3.0MW® site Gained kW as function of average power output, incl. 95% confidence interval 100 90 80 70 60 50 40 30 Ga 20 10 0 -10 -20 0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 Park average power (kW) 4 PowerPlusTM Case study Aerodynamic Upgrades Gain (kW)
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