As the opportunities and abilities of using renewable energy sources vary from region to region, it is very important to choose the right approaches on the way to regional independence and energy autarky, depending on the available resources and conditions of the region. In this diploma thesis, I am going to analyse the potential of the renewable energy sources, such as biomass and solar heat, in the Murau region. This region was chosen for the analysis as the parade region. due to little population, much forest cover and great sea level Furthermore these renewable sources will be opposed to the heat demand of the households in the region, so it can be proved, if the thermal energy produced by these regional renewable resources is enough to satisfy the heat demand of the Murau region. All other renewable and fossil energy sources that could be used for the generation of energy are neglected in my model. The calculation, analysis and comparison is done in the ?Geographical Information System?, where different output data such as ?forest cover?, ?sea level?, ?fall of ground? or ?global radiation on a plane surface? are linked in different ways, so that the final energy potential of the considered energy sources can be determined. Therefore different approvals that were needed for the modelling and a meaningful calculation had to be defined. This calculated energy potential of solar heat and the energy demand are shown in kWh/cell (62 500m). After the potential of the solar heat is subtracted from the heat demand of the region, the accumulated energy demand is calculated. Finally this energy demand is opposed to the accumulated potential of the sustainable used forestal biomass. As expected, the calculated potential of solar heat and warmth of biomass exceeds the calculated heat demand of the buildings in this region. Due to better readability, the persons and titles are quoted in the male gender only, of course, women are also included.