The mission of the Wind Energy Systems isto stimulate co-operation on wind energy research and development and to provide high quality information and analysis to member governments and commercial sector leaders: addressing technology development and deployment and its benefits, markets and policy instruments. The Wind Energy Systems Implementing Agreement vision and mission aim to directly contribute to those of the IEA Committee on Energy Research and Technology (CERT), by enabling deployment through reducing costs and overcoming barriers to encourage a diverse, secure and sustainable energy supply. The Agreement has a purpose to produce objective information and analysis that will inform government policy rather than directly generating policy advice. The Wind Energy Systems Implementing Agreement is expanding both internal and external information exchange.It publishes newsletters presenting results from task work, joint actions, recommended practices, analysis of implementation progress and policies are published and described in some public conferences and forums. The Wind Energy Implementing Agreement enables highly informed exchanges on national government supported programmes and findings, and is ideally placed to establish effective collaboration on basic research. As well as government sponsored R&D, considerable effort and resources are spent within the commercial sector through manufacturing industry, developers, consultancy services and in providing the physical infrastructure.The activities of the implementing agreement provides a means for international co-operation that can only accelerate cost reduction and enable more rapid deployment.

11. Base Technology Information Exchange
To further the development of wind energy conversion systems through co-operative action and information exchange.

19. Wind Energy in Cold Climates
To gather and share information on wind turbines operating in cold climates.

20. HAWT Aerodynamics and Models from Wind Tunnels Tests and measurements
To compare theoretical aerodynamics model predictions of wind turbine blade and structural performance and load with actual measurements.

21. Dynamic models of Wind Farms Power System studies
To address effects on power systems of interconnecting and operating large number of wind turbines.

23. Offshore Wind Energy Technology Deployment
To sponsor focused workshops and develop research tasks to advance development of wind energy systems offshore.

24. Integration of Wind and Hydropower Systems
To conduct cooperative research and provide information exchange on the generation, transmission, and economics of integrating wind and hydropower systems.

25. Design and Operation of Power Systems with Large Amounts of Wind Power
To facilitate wind energy penetration within electricity power systems by analyzing and further developing the methodology to assess the impact of wind power on power systems.

26. Cost of Wind Energy, Analysis of the Cost of Energy from Wind Systems
Objectives: 1) To agree upon and develop an understanding on the cost components of onshore and offshore wind electricity generation, specifically quantifying and documenting expenses such as operational, maintenance and replacement costs, turbine cost trajectories, and assessing the impacts of specific performance parameters on overall plant production. 2) To develop and propose an internationally accepted method for calculating the cost of energy for wind systems and the resulting cost of energy from wind energy projects that can be used by the International Energy Agency, internally and externally, and other organizations. 3) To derive, if possible, the learning curve for wind energy, which allows Governments and the research community anticipate the future trends of wind generation costs. 4) To design a methodology that helps identify the major cost drivers of wind energy. The analysis of such drivers is also useful for selecting which are the areas in which RD&D activities can have a larger impact on cost reduction. 5) In a later stage, the outcomes will be used to compare the cost of wind energy with those of other electricity generation technologies, making sure that the underlying assumptions used are compatible and not biased against a particular source. 6) The cost of wind energy will also be used to calculate the value of wind energy. A tentative list of factors could include: contribution of wind generated electricity to reduce greenhouse gas emissions, impact of wind in decreasing electricity prices, and contribution of wind in decreasing the overall risk of the energy system. The last two objectives described will be carried out following the accomplishment of the initial four, and are foreseen for the third year of implementation of this task. Means to achieve objectives: Identification and assessment of existing methodologies for estimating the cost of wind energy Development of a draft methodology for IEA Wind use Identification of learning curves for the cost of wind energy Comparison between the cost of wind energy and that of other electricity generating technologies Development of a draft methodology to assess the value of wind energy Communication, outreach, and informational exchange Expected results: An understanding of the wind energy cost system A methodology that can be applied by the IEA and other international and national organizations to assess the cost of wind energy A more appropriate comparative analysis of the cost of wind energy in comparison with those of other technologies A first approach to the social value of wind energy.

28. Social Acceptance of Wind Energy Projects

29. MEXNEX(T): Analysis of Wind Tunnel measurements and Improvement of Aerodynamic Models