Estimating the impacts of wind power on power systems: Summary of IEA wind collaboration

Hannele Holttinen

Research output: Contribution to journalArticleScientificpeer-review

50 Citations (Scopus)


Adding wind power to power systems will have beneficial impacts by reducing the emissions of electricity production and reducing the operational costs of the power system as less fuel is consumed in conventional power plants. Wind power will also have a capacity value to a power system. However, possible negative impacts will have to be assessed to make sure that they will only offset a small part of the benefits and also to ensure the security of the power system operation. An international forum for the exchange of knowledge of power system impacts of wind power has been formed under the IEA Implementing Agreement on Wind Energy. The Task 'Design and Operation of Power Systems with Large Amounts of Wind Power' is analyzing existing case studies from different power systems. There are a multitude of studies completed and ongoing related to the cost of wind integration. However, the results are not easy to compare. This paper describes the general issues of wind power impacts on power systems and presents a comparison of results from ten case studies on increased balancing needs due to wind power.
Original languageEnglish
Number of pages6
JournalEnvironmental Research Letters
Issue number2
Publication statusPublished - 2008
MoE publication typeA1 Journal article-refereed


  • wind power
  • wind integration
  • integration cost
  • reserve requirement
  • balancing cost
  • grid cost


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