IEA Wind Task 46

Erosion of Wind Turbine Blades

About Task 46

Leading edge erosion (LEE) has been identified as the main factor substantially reducing both blade lifetime and energy output over time. Field repairs are costly due to lost availability and challenging access and weather conditions. It is crucial to understand the impact of leading edge erosion on the performance of wind plants to be able to determine the cost/benefit of proposed mitigation strategies.

In this context, the Task 46 has been formed by experts from different disciplines to work together to achieve a better understanding of the key technical challenges in blade erosion. The Task will produce literature surveys, topical reports, recommended practices and models.

The Task 46 scope is aligned to two research priorities established by IEA TCP Wind: site characterization and advanced technology.

What are IEA Wind Tasks?

The IEA Wind Technology Collaboration Programme’s (TCP) cooperative efforts continue to advance the technological development and global deployment of wind energy technology. The IEA Wind TCP is a vehicle for member countries to exchange information on the planning and execution of national large-scale wind system projects, and to undertake co-operative research and development (R&D) projects called Tasks.


Task 46 Participants

Task 46 is formed by 25 organizations from 10 Countries:


IEA Wind Contracting party

Task Participant

Belgium Belgian Ministry of Economy Engie
Canada Natural Resources Canada WEICan
Denmark Danish Energy Agency DTU
Ørsted A/S
Finland Business Finland VTT
Germany Federal Ministry for Economic Affairs and Energy Fraunhofer IWES
Emil Frei
Nordex Energy
Netherlands RVO TU Delft
Norway NVE Equinor
University of Bergen
Spain CIEMAT Aerox
Universidad Cardenal Herrera – CEU
Siemens Gamesa Renewable Energy
Nordex Energy Spain
United Kingdom ORE Catapult ORE Catapult
University of Bristol
United States US DoE Cornell University
Sandia National Laboratories

Who can participate in Task 46?

To participate in the research activities of Task 46, researchers must reside in a country that participates in the IEA Wind Agreement AND has agreed by official letter to participate in Task 46. 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.

For more information, contact the Operating Agents, Raul Prieto and Charlotte Bay Hasager or the IEA Wind Secretariat.

Operating Agents

Please contact the Operating Agents below with any questions

Raul Prieto

Task 46 Operating Agent, VTT Technical Research Centre of Finland

    Charlotte Bay Hasager

    Task 46 Operating Agent, Technical University of Denmark (DTU)
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      Task 46 Results

      Find more information about our publications and results here


      Task 46 Roadmap


      Kick-off meeting

      First Deliverable D2.1


      First outreach webinar (Q2)

      Deliverables D2.2, D2.3, D2.4, D4.2, D5.1.1, D5.2.1


      Outreach webinar (Q2)

      Deliverables D2.5, D2.6, D3.3, D4.3, D4.4


      Outreach webinar (Q2)

      Deliverables D2.7, D4.6, D5.1.1, D5.1.2


      Final outreach webinar & dissemination event (Q1)

      Deliverables D2.8, D3.5, D4.7, D4.8 D5.3

      Operating Agent Raúl Prieto

      Senior Scientist, Department of Wind Power

      VTT Technical Research Centre of Finland Ltd.

      Tekniikantie 21,
      02150 Espoo,

      Operating Agent Charlotte Bay Hasager

      Professor, Department of Wind Energy. Meteorology and Remote Sensing

      DTU Wind Energy

      DTU Risø Campus
      Frederiksborgvej 399
      4000 Roskilde