Work Plan

Task 39 Work Plan

germany.jpgSocietal acceptance of new technologies is key to their successful adoption. In some jurisdictions, there is concern about the potential impact of wind turbine noise. Noise pollution from technology affects all of us and it is important to ensure that people are not exposed to excessive levels. Wind turbines are no different. We set out to consolidate understanding of wind turbine sound emissions.

The goal of IEA Wind TCP Task 39 is to accelerate the development and deployment of quiet wind turbine technology. The task will convene an international expert panel to exchange learning, identify and report best practices in the measurement and assessment of noise, and develop an IEA Wind Recommended Practice contributing to the ongoing development of IEC standards for wind turbine noise.

Task 39 Publications

IEA Wind TCP Task 39 - Quiet Wind Turbine Technology Proposal was approved in principle at the ExCo #78 in Brussels, Belgium, in November 2016.


A primary aim is to ensure that the best information is used to build relevant international standards and government regulations. This will help stakeholders at every level.

An additional industry perspective is that the wind turbine supply market is international and not local. Yet despite this global market, there are a wide range of national noise limits and approaches to the overall wind turbine noise assessment process. The diversity of local noise regulations can bring unwarranted compliance costs and confound progressive technical advances to develop wind turbines with lower noise impact.

By identifying best practices in an international collaboration, Task 39 hopes to improve regulations and standards and to reduce unnecessary complication, increasing the effectiveness of quiet wind turbine technology.

Progress and Achievements

IEA Wind TCP Task 39 was approved for a three-year phase in December 2016. Denmark, Finland, Ireland, and Sweden have provisionally agreed to participate in this new task with many others expressing interest. Additional participants are very welcome.

The Task’s kick-off meeting will be held later in 2017 for participants to finalize plans for the coming phase. The collaboration will carry out its work in a series of focused work packages, which are listed below.

Work Package 1

Work Package 1 addresses interdisciplinary education and guidance. This work package will support interdisciplinary discussion.

The aim is to form a consensus with robust, scientific, widely accepted and transparent metrics for wind turbine sound and noise.

Work Package 2

Work Package 2 seeks to understand the various aspects of technical noise. Task participants will refine the focus of this Work Package during their semi-annual meetings. Some potential topics already identified include:

  • Measurement and Data Analysis
  • Modeling
  • Wind turbine design
  • Human response to wind turbine noise
  • Physiological effects
  • Psychological effects
  • Public engagement
  • Shared resources

Work Package 3

Finally, Work Package 3 involves the development of a Recommended Practice for Task 39.

The Task Coordinator and Work Package Leaders will form a working group to develop this document, which will integrate and summarize the findings of the previous Work Packages. Participants will update this Recommended Practice over the course of the Task to ensure that those accessing it read the most current information.