The three year coordinating action THINK will improve the knowledge support to policy making by the European Commission in the context of the Strategic Energy Technology Plan. THINK is organized around a multidisciplinary group of 24 experts covering five dimensions of energy policy: science and technology, market and network economics, regulation, law, and policy implementation. The Think Tank will respond to the European Commission’s evolving needs on a semester basis and produce 12 dossiers and a book.Each semester, two projects will go through the quality process of the Think Tank, including an expert hearing to test the robustness of the work, a discussion meeting inside the Think Tank, and a public consultation to test the public acceptance of different policy options by involving the broader community. Each Think Tank dossier will therefore include four chapters: 1) the Think Tank assessment of the energy policy options with clear recommendations for policy makers from the drafting team under guidance of the Project Leader, 2) a report including the comments from two Think Tank Advisors, 3) the expert hearing summary, and 4) the public consultation conclusions.The coordinating action THINK will reduce the costs related to the implementation of the ambitious EU energy policy targets by assessing the impacts of policy options using an innovative organisational and analytical frame. With a core group of about 15 nationalities, this coordinating action will also help counter the fragmentation of research in Europe and bridge the gap between Member States and the European Commission by creating a common knowledge base for decision making in energy policy.