The potential of geothermal energy in the Upper-Rhine-Valley and the question how it is possible to use the enormous energy reservoir beneath the earth's surface in a sustainable and an economical way for power generation and heat production are the core objectives of this thesis. The purpose of this thesis is to give the reader an insight into the field of geothermics. Beside general aspects of geothermics and geological conditions in other regions the thesis concentrates especially on the conditions in the Upper- Rhine-Valley. The aim is to follow the diverse considerations and steps of development which are necessary if you want to set-up a geothermal power station. The thesis includes information's about the fundamentals of technique, various steps for the development of the location and about a project development process. Because of the different uncertainties concerning geothermal projects the thesis introduces into the field of risk management. The calculation for a geothermal power station (4 years construction phase and 20 years of operation) shows that because of the guaranteed feed into the grid tariff it should be possible to set-up a geothermal power station under economical conditions. Especially the duration of 20 years for the feed into the grid tariff of 20EUR cent and the additional bonus for power plants which start operation before January 1st, 2016 of 4 EURcent are responsible for the positive calculation. Of course it is clear that the realisation of a geothermal project in the Upper-Rhine-Valley poses a large amount of entrepreneurial risks. It seams that because of the overall conditions the next steps in progress can be achieved within the next years.