This hot water is passed through a vaporizer (heat exchanger) which transfers the heat to a low boiling point fluid to give a heat exchanger outlet pressure of 74 psia at a temperature of . This pressurized working fluid is than used to drive the turbine which is connected to the electrical generator. On discharge from the turbine,the working fluid is passed through a cooling condenser,the cooled working fluid is than being returned to the vaporizer.The cooling water for the condenser is obtained from a nearby stream which has a seasonal temperature variation of 15 C to 30 C and sufficient flow capacity to provide the maximum cooling water flow requirement of 94 litres per second.