Niels-Erik Clausen is associate professor at DTU Wind Energy. He has worked with wind energy research, teaching and consultancy since 2000. His research area is planning and development of wind farms including assessment of environmental impact of wind energy. He has worked as principal investigator, work package leader and latest project manager in a series of Nordic projects related to climate change, renewable energy and the Nordic energy system. In addition Clausen has been work package leader in two European projects, South Baltic Offer and Ecowinds. The research area has recently been expanded with social acceptability of wind energy and public involvement through a series of four Danish funded research projects (WP leader).