Resumen
Slovakia belongs to countries rich in geothermal energy resources with high productiveness. The use of geothermal energy (GE) is diverse, e.g. as source for centralized heating networks. The use of this alternative Energy Sources requires optimized exploitation of the energy potential. When using GE it is vital to design systems with cascade utilization of GE to increase the efficiency and have minimal impact on environment. When using GE we have not only take in account physical and chemical properties of geothermal water (GTW) reservoirs, but standards and regulations, as well as limitations given by the delivery points, which apply no matter what type of energy source we use ? conventional or alternative.