IEA Wind Task 26

Using a multi-national case-study approach, this work seeks to understand the sources of wind energy cost differences among seven countries under International Energy Agency (IEA) Wind Task 26 - Cost of Wind Energy. The participating countries in this study include Denmark, Germany, the Netherlands, Spain, Sweden, Switzerland, and the United States. Due to data availability, onshore wind energy is the primary focus of this study, though a small sample of reported offshore cost data is also included. This report consists of two principal components. First, an overview and cross-country comparative analysis of the cost of wind energy is presented. The report then proceeds with a series of country-specific case studies that describe the unique cost elements of a typical wind energy facility in each of the represented countries.