Global climate change is one of the greatest challenges of our era. Clean energy production brings fossil fuel dependency closer together and thus reduces CO2 emissions. Wind energy is a form of clean energy production that is well suited to the northern regions. The sound produced by wind turbines is the largest single constraint for wind power construction in Finland, and there is not enough research on the sound generation and progress of wind turbines in various weather conditions. The purpose of the project is to combine long-term sound measurements and sound modelling in the field with a real-time subjective feedback system and with the data of the background information questionnaire. This kind of research that combines long-term measurement results with real-time feedback has not been done in the past. New data from the study should make it possible to model wind turbine acoustics in different weather conditions to identify problematic situations and optimise the parameters related to the design and operation of wind power.The project is expected to produce the following outputs:1) Assessment of the quality and effectiveness of current noise restrictions2) Prototype of a real-time citizen feedback collection system3) Methods for measuring and evaluating exceptional wind energy noise, including listening noise models4) Prototype of field-mounted intelligent wind noise assessment unit5) A statistical summary of the wind farm noise distribution at different times of the year University of Vaasa, Lappeenranta University of Technology, Ab Yrkeshögskolan vid Åbo Akademi (Novia), Technology Research Centre VTT Oy, Nordex Energy GmbH, ABB Oy, VindIn Oy Ab, Cleanhub Oy, Taaleritehdas Oyj, EBA Tuulivoima Oy, City of Lappeenranta and National Instruments Finland Oy