The aim of the master thesis "Defining the biomass potential of the Hungarian municipality Csólyospálos" is to analyse, whether there is enough available biomass in order to heat the central utilities of the municipality. In a first step, the ecological and historical basic information about Csólyospálos gets presented. The specific characteristics of the soil as well as the connected historical events during the period of communism contribute to the problem. Next, based on the given information, the characterization and relevance of the typical above-ground water gets analyzed. The tests on the property of the Hungarian Ecosocial Forum are connected to this above-ground water, and give relevant information about it. The results make clear why the biomass potential can be better than it will be defined in this master thesis. The next chapter introduces the potential biomass, which could be used for heating purposes. It shows possible harvests as well as the characterizations and needs of the crops. The following chapter explains the influence of the changed ecological conditions and the modernized way of farming on the crops. Partially, this influence can also be quantified. After that, systems for the transformation of the biomass into heat get introduced. This also includes the possible energy outputs in kilowatt hours of the introduced biomass. The focus here lies on the production of heat, not of electricity. Next, the advantages and disadvantages of a decentralized utilization of the biomass get analyzed, because it seems that decentralization might be more suitable for a municipality like Csólyospálos. Finally, the results get analyzed and summarized. The recommendation to Csólyospálos follows. The master thesis ends with a prospect to continuative questions.