In this paper is provided a systematic, in-depth, behavioral analysis of renewable energy sources cooperatives' members. The analysis proved that in, on hand, there was a noticeable difference in the portion of affection of each proposed intervention on the actual energy consumption, which may be to even ten times more in some cases, and on the other hand, the difference in energy consumption between the analyzed groups was noticeable as well. So, implementing energy efficiency interventions of various types, such as technical support, special tariffs, energy generation schemes, and smart meters, seems to lead to substantial energy reductions to even more than 10%, cumulatively, and reduces the environmental footprint. Additionally, the majority of energy efficiency interventions applied by the renewable energy sources cooperatives are proved to be effective in achieving their primary goal, sensitizing members, and leading them to a more efficient energy consumption behavior ("greener"). The results of the analysis showed that each proposed intervention had played a different but nonetheless significant role in the diminishing of the energy consumption of the members and that there was a noticeable difference in energy consumption between the analyzed groups. The results of the analysis demonstrated more than 22 GWh totally in green consumption, and almost 4500 tons of CO 2 saved.Energies 2020, 13, 1136 2 of 22 REScoops started to form in the European Union several years ago, offering to their members the opportunity to purchase green energy, such as renewably generated electricity, at reasonable prices. Besides, they were able to become autonomous and independent concerning energy availability. Last, but not least, their members could interact democratically with other members and co-decide the cooperative's future [7,8].Furthermore, REScoops offer to discrete populations and companies the opportunity to become renewable power producers and to actively participate in cooperative energy consumption [9,10]. Additionally, REScoops suggest the established framework in order to implicate citizens with social, political, and nevertheless, financial features of RES distribution [11,12]. Last, but not least, there are several cases where REScoops enhance the effort of other systems relevant to RES systems, such as intelligent transportation one [13].As observed, the members of the contributing REScoops altered their behavior, reducing their final energy consumption, and invested money in order to produce green energy through RES [14,15]. Within the frame of the H2020 REScoop Plus Project, a better understanding is considered, and REScoops fostered this behavioral change employing the actions mentioned above. Energy consumers' dynamic contribution to conservation activities, and in self-production processes as well, seems to be the primary way to meet the European Commission's targets for near-zero carbon footprint, 100% green energy consumption, and energy democracy. As the transition to RES is primarily enforced politi...