This master thesis deals with the generation of realistic load profiles of user-defined process landscapes for the energy categories electricity, direct fuel and steam. With the help of a logistic model, a time-controlled process flow of material and energy flows through any process landscape is ensured in order to be able to output cumulative load profiles for the defined balance groups gross energy demand and total energy demand. This is made possible by “discrete-event simulation”, which depicts all sub-processes with specific properties, consumption data and functions. The framework also guarantees a logistically controlled product flow that regulates the sequence of all aggregate activities. The user related input and output generations take place via an already existing interface in which process chains are formed by interconnecting units using connection vectors that serve as the basis of the sequence control. This load profile generator is to be used for industrial sectors with low product variety and constant process structures, such as the iron/steel industry as well as the pulp/paper and cement industry. The model that has been developed is checked for its functionality on the basis of the iron and steel industry. For this purpose, the two main production routes for steel, the blast furnace and the electric arc furnace route, are considered and the results of these investigations are presented. The reference product steel runs through the entire process route, which consists of continuous and discontinuous (batch) working processes. The comparison with measurement data proves the functionality of this program algorithm in order to generate realistic load profiles of fictitious industrial companies on the basis of sub-processes and their connections. This enables the mapping of the entirety of any process landscape for the defined balance groups throughout a bottom-up approach.