The National Energy Strategy (NES) was approved by the Ministerial Decree on the 8th of March 2013. It directs the country efforts towards a substantial improvement of both the competitiveness of the energy system and the environmental sustainability. For Italy, the actions proposed for the national energy strategy are part of the process of decarbonisation in 2050 in accordance with the Roadmap 2050. Moreover, the European Commission has defined ‘the energy package’ which sets out the european energy policy, endorsed by the European Eunion heads of states and governments which launched the "20-20-20" by 2020. This strategy has three ambitious objectives to be achieved by 2020: 20% GHGs reduction; 20% reduction of energy consumption, meet the 20% of european energy requirements via renewable energy. Within the Paris COP 21, the reached agreement highlights the importance of renewable energy for the Planet and the consequent requirement to accelerate the energy transition towards alternative forms of energy supplies. The objectives of this Agreement is to achive the “carbon neutrality” by 2050.