About Task 34

Wind energy continues to be deployed worldwide at a record pace, but questions about the impact of wind energy projects on wildlife can result in project development challenges.

There is a strong need to share lessons gained from field research, including management methods (e.g. adaptive management), wildlife monitoring methods, best practices, study results, and successful approaches to mitigating impacts and addressing cumulative effects.

The global nature of the wind industry—combined with the understanding that many affected species cross national boundaries and, in many cases, pass between continents—also points to the need to collaborate on a wide international level.

IEA Wind TCP Task 34, known as Working Together to Resolve Environmental Effects of Wind Energy (WREN), is the leading international forum for supporting deployment of wind energy technology around the globe through a better understanding of environmental issues, efficient monitoring programs, and effective mitigation strategies.

The scope of WREN is to facilitate an international collaboration that advances global understanding of the environmental effects of land-based and offshore wind energy development and creates a shared global knowledge base and community of practice around research, monitoring, and management, including good practice recommendations.


Task 34 Roadmap

Through 2024, WREN will continue outreach and engagement activities, including:

  1. Annual enhancements to Tethys functionality and continual updates and additions of new research papers and other media as they become available
  2. Dissemination of scientifically based research and recommendations to government regulatory organizations and wind developers/operators through various outreach materials and approaches
  3. Webinars on specific topics, determined on an annual basis
  4. Expert forums on specific topics, determined on an annual basis
  5. Annual maintenance and enhancement of the database of technologies

In addition to these annual activities, WREN will also focus on the following:


Year 1

Complete horizon scan, or a systematic assessment, to elicit feedback from a broader stakeholder community on topics related to persistent and emerging issues. Results from the horizon scan will inform WREN priority topics and activities for 2-4 years.


Year 2

Establish and maintain a database of technologies for monitoring and mitigating the environmental effects of wind energy.


Year 3

Continue to engage with the WREN community through webinars, expert forums, and publications.


Year 4

Evaluate the success and value of WREN. Determine whether another 4-year extension is warranted.

Any Question at

Tel: +1 720-309-9256


National Renewable Energy Laboratory
Golden, Colorado
United States

Monday to Friday

9 am – 17 pm Central European Time

Send your mail at