Enormous power of blocks in PP "Kosova B" requiers knowledge of the physicochemical properties of the combustibles that are used in the combustion process inside the steam generator. The usage of this statistical model for the analysis of lignite that is used for combustion in PP "Kosova B" contributes to solving of the problems that have to do with the combustion of the lignite. The model that is used is designed to show the arrangement of the data of the consumed lignite, ash, moisture, energetic value, and the power for 24 hours. Methodology of this research is based on laboratory research and the designing of the model using Microsoft Excel. Based on the results from out observations during the analysis for the amount of lignite, ash, moisture, energetic value, and power, distribution based on normal and lognormal curve is suggested.