For this work, in January 2008, the European Commission proposed the Energy and Climate package with “20-20-20 by 2020” goals: reduction in greenhouse gas emissions to 20% below 1990 level, 30% in the context of a global agreement on climate; a 20% share of renewables in the final energy consumption; a reduction in primary energy use to 20% below the baseline projection for 2020 [46].