In 2009 I analysed wind power and spot markets for electricity for the Renewable Energy Foundation. My work included the years 2006 to 2008. The analysis was extended by one of the four German transmissions system operators when an unexpected close relationship between spot prices in Denmark and Germany was detected.

The analysis was based on a statistical survey for each of the three years 2006 to 2008. Similar surveys have been made for the years 2009 to 2011.

It is still being discussed if the wind power profile is smoother when larger geographical areas than Denmark are considered.

Therefore the survey for 2011 includes 5 countries: Denmark, Germany, Ireland, Great Britain and France.