The diagram below shows how geothermal energy is used to produce electricity. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The graphic shows how electricity is produced in a power plant using geothermal energy.

Overall

,

this

process consists of five main stages, which occur both above and below ground, and utilise natural features

as well as

engineering equipment. In the first stage of

this

process, cold water is collected and stored in a vat above ground and is

then

pumped to a depth of 4.5km by the injection well into an area called the 'geothermal zone', which is basically hot rocks below the earth's surface. After passing through

this

zone, the water, which is now heated, is

then

pumped back up to the surface via the production well into an enclosed structure known as a condenser where it is transformed into a steam.

This

steam

then

passes into another enclosed area where it drives a rotating turbine, which

subsequently

provides power to a generator. In the final stage, electricity is produced by

this

generator and is

then

dispersed via electricity pylons for consumer use.