The European Union Sustainable Energy Week (EUSEW) is a week of events which take place all over Europe and Brussels. Events are organised to show, promote, discuss and celebrate renewable energy and energy efficiency.

Energy days can be any event that promotes renewable energy or energy efficiency - from exhibitions, conferences, online events, and performances to guided tours, open door days, workshops, media campaigns, concerts and much more.

During EUSEW 2012 in Brussels, European Institutions, associates of the Sustainable Energy Europe Campaign, and other important players in the field organised a series of events. These included a three-day policy conference organised by the European Commission from 18-22 June 2012.