Last writing task 1 The mechanism of producing electricity by geothermal energy is shown in a picture. There are 4 steps to produce electricity. It needs cold water, the geothermal zone (which provide the heat), the condenser, the turbine and the generator. First of all, cold water is pumped down in order to reach the geothermal zone which is located under the ground about 4.5 km. The temperature of cold water in the pipe start to rise by the heat from the geothermal zone where is full of hot rocks. After the cold water became hot water, it is pumped up and collected by condenser and than transform into steam. Steam will cause the turbine rotates in order to activate generator to produce electricity. This method will not produce any waste or cause any pollution. However, the limitation is the lack of geothermal zone, because it appears only in certain areas.