In energy systems where the process of harvesting energy in an energetic material is required as a physically separate step from the Processing Unit, transport of the energetic material containing the energy is required 'energy. In the case of biomass-based energy systems, this phase includes all the infrastructure associated with the logistics of supplying the biomass to the treatment unit: machines, roads, pipelines, etc. Although the energy flowing through this stage is linked to the energy quantity of raw material required by the processing plant, its cost structure can vary freely, based on the type of transportation technology adopted (for example: pipelines, trucks , railways), distances, daily demand of the processing unit, operating time and physical characteristics of the raw material (such as density).(4.15)Where:[%] Losses, “as logistics capacities decrease along the chains, due to dry matter losses, drying or conversion” (C Hamelinck, Suurs, & A Faaij, 2005 , p. 116); In terms of resources, two components are key to measuring the level of resource use involved in transportation. As regards costs, two elements must be considered: variable distance costs (DVC), the component that directly depends on the distance travelled, and fixed distance costs (DFC), which are independent of the distance travelled. The DVC depends on the mode of transportation and the specific location. The DFC depends on the type of biomass transported and the equipment. Therefore, the DFC will vary depending on the specific form of the biomass to a greater extent than the DVC. “The impact of the fixed cost of distance on the overall cost of transportation decreases as distance increases” (Searcy et al., 2007).3.4.4 Phase 04 – Storage In storage, the energy density concerns the mass of a energy reserve......paper medium...and transportation distance. All potential routes connecting each biomass production site with the power plant are identified using the road network. The transportation distance is then identified as the length of the shortest route from the center of each region to the power plant site. Furthermore, the effect of the main logistical variables, such as specific vehicle transportation costs, vehicle capacity, specific costs of purchased biomass and distribution density, was examined as a function of the size of the plants. To evaluate the profitability of bioenergy plants and the impact of logistical variables, it is first necessary to establish an overall cost estimation procedure with reference to the energy production processes considered, followed by an overall economic evaluation model analysis capable of capturing the effects of variable parameter values ​​on variable plant cost parameters.