ENEA is the Italian National Agency for New Technologies, Energy and Sustainable Economic Development. The Agency’s main areas of research are: Energy Efficiency, Renewable Energy Sources, Nuclear Energy, Climate and the Environment, Safety and Health, New Technologies and Electric System Research. The actual staff is about 3000 people, with about 40% scientists, distributed in nine ENEA Research Centers and five Research Laboratories, located all over Italy. ENEA mission includes also training and dissemination activities aimed at increasing the public knowledge and the technology transfer. The R&D activities in ENEA are carried out by using high quality experimental facilities, laboratories and nuclear research reactors. ENEA collaborates with the major national and international institutions, universities and research bodies and participates in the main EU research programmes and European technology platforms.