Task Directory


IEA Wind TCP Research 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.

Participation in a research Task is open to any organization located in Member Countries or Sponsor Members of the IEA Wind TCP. Cooperative research is carried out as research, development, and deployment projects of the IEA Wind TCP. Technical reports, fact sheets, and recommended practices are released publicly to benefit the wind energy community.

Learn more about IEA Wind TCP

Technology Development

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Task 11 Base Technology Exchange promotes and disseminates knowledge on emerging wind energy topics through Topical Expert Meetings (TEMs), where invited experts exchange information on R&D topics of common interest to the IEA Wind TCP members. The Task also develops IEA Wind TCP Recommended Practices which have served as basis for both international and national standards.
Task 11 website
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Task 19 Wind Energy in Cold Climates gathers and provides information about wind energy in cold climates, including project development, operation and maintenance (O&M), health, safety and environment (HSE), operational experiences, and recent research.
Task 19 website
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Task 29 Mexnext III: Analysis of Wind Tunnel Measurements and Improvements of Aerodynamic Models works on forming a complete understanding of wind turbine aerodynamics, to improve aerodynamic models used for wind turbine design.
Task 29 website
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Task 30 Offshore Code Comparison Collaboration, Continued, with Correlation (OC5) identifies limitations of offshore wind design tools to accurately representing real-world behavior, makes needed improvements to industry design tools, and determines future research and development needs.
Task 30 website
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Task 35 Full Size Ground Testing for Wind Turbines and their Components formulates recommendations for full-size ground test procedures for rotor blades and nacelles and standardizes them across the test facilities around the world.
Task 35 website
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Task 39 Quiet Wind Turbine Technology exchanges learning and identifies and reports best practices in the measurement and assessment of noise to accelerate the development and deployment of quiet wind turbine technology.
Task 39 website

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Task 40 Downwind Turbines coordinates international research and investigate the benefits of downwind turbine technology toward the reduction of levelized cost of energy (LCOE) and proliferation of onshore and offshore wind plants.
Task 40 website

Inactive Tasks

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Task 33 Reliability Data: Standardizing Wind Turbines Data Collection addressed the data collection and failure statistics in the wind energy sector with the objective of using reliability data to improve reliability and optimizing O&M procedures of wind turbines.
Task 33 Summary
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Task 24 Integration of Wind and Hydropower Systems conducted cooperative research concerning the generation, transmission, and economics of integrating wind and hydropower systems, and to provide a forum for information exchange.
Task 24 Summary 
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Task 23 Offshore Wind Technology and Deployment held workshops and developed research projects to increase understanding of issues and technologies to advance the development of wind energy systems offshore
Task 23 Summary
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Task 22 Wind Energy Market Acceleration is aimed at conducting programs to assist in development of new markets for wind power, especially in non-OECD countries.
Task 22 Summary
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Task 21 Dynamic Models of Wind Farms for Power System Studies facilitated a coordinated effort to develop wind farm models suitable for use in combination with software packages for simulation and analysis of power system stability.
Task 21 Summary
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Task 20 HAWT Aerodynamics and Models from Wind Tunnel Measurements was structured to transition aerodynamics data to accurate, robust wind turbine aerodynamics models for machine design and analysis.
Task 20 Summary
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Task 18 Enhanced Field Rotor Aerodynamics Database (EFRAD) maintained the Task 14 database and extended the database with new aerodynamic measurements.
Task 18 Summary
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Task 17 Data Base on Wind Characteristics provided wind energy planners, designers, and researchers with a source of actual wind field data observed in a wide range of different wind climates and terrain types.
Task 17 Summary
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Task 16 Wind Turbine Round Robin Test Program validated wind turbine testing procedures, analyzed and resolved sources of discrepancies, and improved testing methods and procedures.
Task 16 Summary
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Task 15 Annual Review of Progress in the Implementation of Wind Energy by the Member Countries of the IEA produced an annual overview of the progress in the commercial development of wind turbine systems in the IEA member countries.
Task 15 Summary
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Task 14 Field Rotor Aerodynamics coordinated full-scale aerodynamic test programs on wind turbines to acquire the maximum experimental data at minimum cost.
Task 14 Summary
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Task 13 Cooperation in the Development of Large-Scale Wind Systems furthered large wind turbine system (LWTS) development through cooperative action and exchange of information on national LWTS research, development, and demonstration programs.
Task 13 Summary
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Task 12 Universal Wind Turbine for Experiments (UNIWEX) was a computer-controlled, two-bladed experimental wind turbine that studied aerodynamics, operational behavior, load spectra and control strategies for different hub concepts.
Task 12 Summary
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Task 9 Intensified Study of Wind Turbine Wake Effects improved the knowledge of aerodynamic interaction between wind turbines operating in a windfarm.
Task 9 Summary
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Task 8 Study of Decentralized Applications for Wind Energy defined cost-effective models and techniques suitable for obtaining wind and load data necessary for decentralized wind energy conversion installations.
Task 8 Summary
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Task 7 Study of Offshore WECS defined design criteria for an offshore wBcs prototype and outlined a plan for the design, construction, and operation of a possible joint prototype.
Task 7 Summary
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Task 6 Study of Local Flow at Potential WECS Hill Sites measured the spatial characteristics of mean wind and turbulence over a typical WECS hill site and assessed the accuracy with which wind flow could be modeled physically and mathematically.
Task 6 Summary
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Task 5 Study of Wake Effects Behind Single Turbines and in Wind Turbine Parks conducted theoretical and experimental modeling of turbine cluster performance by combining information on individual wakes with knowledge of machine performance in wake-type flows.
Task 5 Summary
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Task 4 Investigation of Rotor Stressing and Smoothness of Operation of large-Scale Wind Energy Conversion Systems aimed to develop and test of LS WECS for rotor stressing while also assessing the technical, economic and institutional requirements for their widespread use.
Task 4 Summary
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Task 3 Integration of Wind Power into National Electricity Supply Systems developed a computer model for determining the economic value of wind energy to a large electric utility.
Task 3 Summary
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Task 2 Evaluation of Wind Models for Wind Energy Siting verified selected atmospheric boundary layer numerical models by comparison with each other and with observed data, and evaluated the usefulness of such models for wind turbine siting.
Task 2 Summary
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Task 1 Environmental and Meteorological Aspects of Wind Energy Conversion Systems studied the environmental impact and operational safely of large-scale WECS, investigated the uncertainty in wind forecasting appropriate for day-to-day operation of WECS, and recommended design methods for selected load cases.
Task 1 Summary

Wind Characteristics

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Task 31 WAKEBENCH: Benchmarking Wind Farm Flow Models develops verification, validation and uncertainty quantification (VV&UQ) frameworks to support a sustained improvement of wind farm models.
Task 31 website
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Task 32 LIDAR: Wind Lidar Systems for Wind Energy Deployment works to identify and mitigate barriers to the use of lidar for following applications: site assessment, power performance, loads and control, and complex flow.
Task 32 website
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Task 36 Forecasting for Wind Energy focuses on improving the value of wind energy forecasts to the wind industry. These challenges are represented in the Task’s three Work Packages.
Task 36 website

Wind Integration

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Task 25 Design and Operation of Power Systems with Large Amounts of Wind Power formulates best practice recommendations for system impact and integration studies that facilitate economically feasible wind energy penetration in electricity power systems.
Task 25 website
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Task 27 Small Wind Turbines in High Turbulence Sites aims to understand how turbulence impacts small wind turbine production and whether turbulence is appropriately characterized in the International Electrotechnical Commission (IEC) standard 61400-2 for small wind turbines.
Task 27 website
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Task 37 Wind Energy Systems Engineering aims to apply a holistic systems engineering approach across the wind energy system, addressing changing expectations on performance, reliability, and cost.
Task 37 website

Social, Educational & Environmental Issues

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Task 26 Cost of Wind Energy seeks to provide information on the cost of wind energy to understand past and present trends, and to anticipate future trends using consistent, transparent methodologies.
Task 26 website
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Task 28 Social Acceptance of Wind Energy Projects serves as an international forum and working group involving Denmark, Germany, Ireland, Japan, Switzerland, and the United States.
Task 28 website
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Task 34 Working Together to Resolve the Environmental Effects of Wind Energy (WREN) is the leading international forum for facilitating deployment of wind energy technology around the globe through a better understanding of environmental issues and demonstrated solutions for wildlife challenges.
Task 34 website