IEA Wind TCP Task 39

Quiet Wind Turbine Technology

About Task 39

The goal of IEA Wind TCP Task 39 is to accelerate the development and deployment of quiet wind turbine technology and consolidate understanding of wind turbine sound emission, propagation, and ultimately its perception by residents. The Task will convene an international expert panel to identify best practices in the prediction, measurement, and assessment of noise, as well as investigate regulatory and socio-psychological aspects of wind turbine noise.



Task 39 Participants

Who can participate in Task 39?

To participate in the research activities of Task 39, researchers must reside in a country that participates in the IEA Wind Agreement AND has agreed by official letter to participate in Task 39.

The participating member country of the IEA Wind TCP must designate a lead institution that agrees to the obligations of Task participation (pay the annual fee and agree to perform specified parts of the work plan).

Active researchers (performing part of the work plan) benefit from meetings and professional exchange during the term of the Task.

Countries participating in the Task benefit from the information developed by the Task. The value of the research performed is many times the cost of the country participation fee or the labor contributed to carrying out the work plan.


Operating Agents

Please contact the Operating Agents below with any questions

Franck Bertagnolio

Task 39 Operating Agent
    OA: Franck Bertagnolio (DTU, Denmark)

    Eoin King

    Task 39 Operating Agent
      OA: Eoin King (NUI Galway, Ireland)
      • SHARE:

      Task 39 Publications

      Find more information about our publications and results here.


      Task 39 Roadmap

      Task 39 was initiated during the year 2017, and the kick-off meeting took place in November 2017. This first phase of the Task officially ended up at the end of 2020, and an extension to a second Phase with a new work program has been approved by the IEA Wind ExCo (ExCo 87 meeting, May 2021). The duration of the second Phase is 3 years from beginning 2022 to end 2024.


      Phase l

      The Task 39 Phase 1 work programme was articulated around three work packages corresponding to key aspects of wind turbine noise. In each of these, a number of potential sub-tasks to be addressed were identified, and some of them were selected as collaborative work activities. The first work package (WP) focuses on Interdisciplinary Education and Guidance. WP 2 deals with physics of noise and technical aspects of wind turbine noise. WP 3 is concerned about the psychology of noise, including psycho-acoustic and human perception of wind turbine noise. Unfortunately, there has been no contributions to this part of the Task from specialists in this domain during the first phase of the task.


      Phase ll

      In Phase 2 of Task 39, the objective is to propose a work programme with a more balanced approach for addressing both engineering and socio-psychological aspects (see This extension of Task 39 to a second Phase has been approved by the IEA Wind TCP Executive Committee (at ExCo 87 meeting, May 2021) and will be running from beginning of 2022 to end 2024.


      IEA Wind Task 39

      Task 39

      Monday to Friday

      9 am – 17 pm Central European Time

      Send your mail at