This thesis aims to design an energetically, economically and environmentally sustainable strategy for GSE, a company involved in the field of road transport, organic waste treatments, waste collection & management. the company is mainly composed of two branches: the first one’s in charge of managing the organic treatment plant, and public wastewater treatment plants, the second one manages Logistics of Waste collection & Transport. In the next future, the company intends to innovate the way this services are exploited, especially in order to find new competitive and appealing solution for its customers. The main idea on which this thesis is involved is trying to finalize the best energy cycle as possible using available resources, transforming it in order to reduce consumption and increase revenue.