The Energy research Centre of the Netherlands is the largest research centre in the Netherlands in the field of energy. At this moment ECN employs about 900 people. ECN is situated in the dunes near Petten, a village in the northern part of Holland. The research centre carries out research in the field of energy. With this work the researchers move between fundamental research at universities and appliance of knowledge and technologies in practice. This work has a huge impact on daily life. For example, solar systems are placed on roofs of houses and modern wind mills are spinning in the field by means of technology developed by ECN. With this the institute exerts an important function for the society of today and tomorrow.