Nowadays, most issues are associated with the growth of population and an increase in energy needs is no exception. Therefore, one of the ways to solve this problem is use of technologies based on renewable energy sources. In this thesis, the effectiveness of the ground water-source heat pump (GWHP) is being analyzed in Famagusta conditions. Famagusta has been chosen because it has potential for renewable energy sources such as groundwater with a practically constant temperature throughout the year and solar energy, which can be used to generate electricity by photovoltaic panels for the needs of the heat pump. N Y software is used to simulate the process. he temperature of ground water was fixed at C. In order to gather information a out ground water-source heat pump benefits, a comparison with an air-source heat pump was conducted. The results show that the GWHP had a better COP both in summer and winter by 63% and 214% respectively. In winter the COP of GWHP reaches a value of 5.6, however in Summer this value is approximately 3. In addition, cost-benefits evaluation indicated that GWHP has profitable benefits and that the system is economically feasible. Keywords: Heat pump, GWHP, ASHP, TRNSYS, Famagusta