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Wind Power Integration and Exchange in the Trans-European Power Markets (TRADEWIND)

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TradeWind was a European wind power integration study addressing issues relevant for TSOs, regulators, power exchange market parties and main industry actors (wind farm developers and manufacturers). Its long-term objective was to facilitate the dismantling of barriers to the large-scale integration of wind energy into European power systems on transnational and European levels. It formulated recommendations for policy development, market rules and interconnector allocation methods in order to remove unjustifiable barriers to wind power integration. The scoped area was the EU-27 and included the transmission networks in the synchronous zones of UCTE, Nordel, GB and Ireland. Interaction of foreseen developments in wind power capacity, power system upgrades and international power market rules were analysed in detail, and recommendations for policies, market rules and interconnector allocation methods to support wind power integration were formulated for wind power capacity scenarios up to the year 2030. The analysis was built on the calculation of continental power flows using adequate models of wind, electrical network and market parameters, within well defined scenarios.


  • Wind power scenarios: Country- and region-specific Low, Medium and High wind power capacity scenarios have been collected for the TradeWind target years up to 2030.
  • Methodologies and tools for simulating the impact of wind power on the trans-European power system, including modelling cross-border flows. It was found that the impact is not uniform: more installed wind power capacity does not always result in more congestion. Wind power prediction errors have an impact on the hourly cross-border power flow; the deviations between the actual and predicted power flow fall within some 20 % of line capacity.
  • Assessment of European transmission infrastructure upgrade for increased wind power: For the scenarios for 2015-2020 the savings in system operation costs are relatively small compared to the likely costs of the transmission upgrades. However, for 2020-2030 the benefits of transmission upgrades become significantly greater, justifying significant investments in transmission infrastructure, in the order of an average of 0.5 billion euros for each of the 42 TRADEWIND-proposed transmission lines.
  • Recommendations which include technical and economic justifications for the inclusion of wind power in existing networks;
  • Survey of power exchange market rules and constraints (mainland and on islands), including analysis of the economic consequences of gate closure time and insufficiencies in the allocation of interconnector capacity.

Lessons learned

  • TradeWind expertise, approach, data and models have given this first analysis of the European transmission and market system in view of the integration of large amounts of wind power. Due to the time restrictions, it was not possible to make optimal use and analysis of all the produced simulation outputs. Therefore it is recommended that similar studies are made, based on the data sets produced by TradeWind.
  • For the future, alternative means of obtaining Europe-wide consistent wind speed data sets of several years duration and time resolution should be considered. Such data should have shorter resolution times than the six hour intervals used by TradeWind. Such data will be useful for studying generation adequacy, balancing costs, and so on.

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European Wind Energy Association
Contact point: 
Dorina Iuga
0032 2 546 19 88
Mrs. Dorina Iuga
+32 2 230 18 09
Gloria Rodrigues
0032 2 546.19.40
Dorina Iuga
32 2 546 19 88


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In brief

01/11/2006 to 28/02/2009
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