Answer Checking

IELTS Task 1 Correction: Geothermal Energy Used to Produce Electricity.

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.

geothermal energy ielts


The given figure illustrates the use of geothermal energy in order to generate electricity.

Overall, it is an artificial method (all methods are artificial, I guess.) of generating electricity which comprises five main stages. The main components of the process are water, hot rocks, condenser, turbine and generator. The main (word repetition: main) idea is to heat and condense water to generate steam and then this steam is applied used to produce electricity through turbine and generator.

Firstly, cold water is pumped down from surface via a 4.5 kilometre deep pipe into the injection well, from where it is passed through geothermal zone – which are underground hot rocks- , which consists of hot rocks, to heat it and is stored (I can’t read storage in the production well) in the production well. In the following stage, this hot water is pumped up to the surface into condenser to produce steam.

In the fourth stage, the produced steam is passed from condenser to next chamber to run turbine. In the fifth and final stage, the running turbine generates mechanical energy (no reference of mechanical energy. Please do not mention your own idea/ knowledge) to turn on generators which ultimately produce electricity.

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