With the 2015 Paris Climate Agreement, the European Union pledged to achieve greenhouse gas (GHG) emission reductions of at least 40% by 2030. In the Clean Energy for All Europeans package legislation, the European Union committed to support this pledge with other ambitious sustainability targets for 2030: a 32% share of renewables in final energy consumption, with a sub-target of 14% for the transport sector, set in Directive (EU) 2018/2001 (REDII); and 32.5%3 energy efficiency improvements with respect to the 2007 baseline scenario. As part of the European Green Deal, the European Commission has proposed raising the level of ambition of EU environmental policies and reaching carbon neutrality by 2050. In order to achieve this goal, the GHG emission reduction target for 2030 will be increased to 55%. The renewable energy penetration objective is likely to be consequently increased to 38-40%. The achievement of these ambitious environmental targets requires a change of pace in many sectors of the economy. The energy sector is called on to contribute with a massive increase in generation from renewable energy sources, both in the electricity and the gas sectors. As previously, the electricity sector will be called on to provide a more than proportional contribution to the achievement of the renewable penetration target. Indeed, it is likely that, by 2030, two-thirds or more of final electricity consumption will have to be met by renewable generation.