On Saturday 6 June the JRC’s Institute for Energy (IE), together with the Dutch Energy Research Centre (ECN) held an Open Day at the Petten Research Park in North Holland for more than 2000 enthusiastic visitors. The theme of the day was “Energy Research Today for Tomorrow's Energy”. The public enjoyed numerous demonstrations, games, quizzes and visits to the unique research facilities. A particular focus of the day was on practical experiments for children and energy - related games. Children could make their own solar panels, or take photos of insects with a magnification of 100,000 using an electron microscope.