The diagram illustrates the process of generating electricity from geothermal energy.
Overall, the process is cyclical in which cooled water is heated underground, turned into steam and reused to produse electricity.
In the first stage of the process, cooled water is pumped down through an injection well to a depth of around 4.5 kilometres, where it becomes gradually heated by the hot rocks located within the geothermal zone. Once this occurs, the resulting hot water is then pumped back up through the production well, where it is converted into steam, ready for the next steps of producing electricity.
At the next stage, the steam produced is directed into a turbine, causing it to spin. The rotation of the turbine then powers a generator, which in turn produces electricity for distribution. After that, the steam that has generated electricity is cooled in a condenser and turned back into water, allowing the entire cycle to continue efficiently and without interruption.
