The challenge facing fuel cells and hydrogen technologies is of great complexity, requiring substantial investments and a high level of scientific, technological and industrial expertise. At the same time, their potential contribution to Community policies - in particular energy, environment, transport and industrial competitiveness - is very important. The European Strategic Energy Technology (SET) Plan has identified fuel cells and hydrogen among the technologies needed for Europe to achieve the targets for 2020 as well as to achieve the long-term vision for 2050 towards decarbonization.