It gives the possibility to place all energy loads on the site, subject of ED, and associate them to the energy carriers of relevance; in particular, there are two sections called AUXILIARY SERVICES and GENERAL. For each of them the user can define the loads and the relative energy consumption. Once the inventory for each energy carrier is built, even partially, it will be possible to access to the reports that in intuitive way provide the user with information on the progress of the activities, in terms of coverage percentage of the inserted loads in the inventory comparable to the overall energy needs. At the end of this activity, our DE 102, through smart logic, will verify the adequacy of the inventory built and the Energy Requirement previously calculated, reporting any correction to be made.