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 illustration demonstrates the process by which electricity is generated by means of geothermal energy.

Overall

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, what stands out from the process is that it consists of six key steps, half of which occur underground and half of which take place overground. Beginning with the first half, after cold

water

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is pumped down 4.5km beneath the earth's surface it reaches an injection well. The injection well transmits the

water

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through the geothermal zone, which is composed of hot rocks, before it arrives at a production well. The newly heated

water

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pumped

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is pumped

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back up via

this

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well to the surface. Overground, a

condonser

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condenser

is set up to collect the hot

water

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and send its steam through a narrow pipe toward a turbine. The steam powers the rotation of

turbine

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the turbine

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which in turn powers a generator to which it is connected.

This

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generator

finally

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produces electricity which can

subsequently

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be transmitted to electrical towers.