In Switzerland, as in some other industrialized countries, plastic wastes are eliminated together with municipal wastes by incineration with thermal energy recovery (“ITER”) for power production and district heating. However, although this is thought as one of the best methods to dispose of the wastes, the trend is for increased sorting, separate collection, and material recycling as it is already the case for PET bottles. In this context, an ambitious project is carried out by a group of industrial and R&D partners to find an innovative and complementary alternative with a strong ecological, economic, and societal impact. The first phase, now completed, aimed at the comparison of best available pyrolysis technologies for distributed energy conversion plants which should be 10 times smaller or less than ITER plants. The objective is to implement on a pilot scale a pyrolysis unit which should allow better energy recovery and thus contribute to the energy transition. Several typical wastes already collected separately were considered for a 1500 t/year pilot plant : The considered alternatives were technologies that produce liquid and/or gaseous fuels such as pyrolysis or gasification. The objective of the feasibility study was to evaluate the different options in terms of ecological, economic, and social impact for the recovery of plastic waste by comparing them to the existing solution, namely incineration with thermal energy recovery (“ITER”). Only high-temperature pyrolysis or pyrogasification technologies were found to meet the technical requirements, types of waste and quantities to be treated and the environmental criteria of this project with half the GHG emissions and fossil fuel utilization compared to incinerators. This project can serve as a model for the valorization of plastics in the future. It is important to stress that the deployment of these new technologies is complementary (and not in competition) to ITER, with a view to a transition of the latter towards a circular economy in the coming decades.