(in lingua inglese)
Based on the conducted research and analysis of the results, it may be concluded that energy efficiency of bioethanol production depends on selected parameters of the process and their values. Parameters were grouped into two clusters, according to their values. Efficiency of the process is different for data that belong to each cluster, with the higher values for cluster 1. The sensitivity analysis indicates that the most important process parameters that affect on energy efficiency of bioethanol production there are: coefficient of heating performance of the steam boiler (eta), starch content (zs), unit steam consumption in the steamer (D) and the efficiency of reaction (wr).