The two diagrams provide an overview of a man-made construction by the sea. It shows how the structure creates electricity thanks to the force of the waves.
The artificial construction is based on a cliff or a sea wall. It consists of a chamber, in which the wave gets in and in a long column, where a turbine is located.
Firstly
a wave fills a large chamber and, thanks to its power, the air is pushed up to the column. Linking Words
Secondly
, the air pressure activates a turbine, which rotates clockwise, and electricity is generated. Linking Words
Nevertheless
, the process is not over yet, because the structure is able to use the power as the sea flows away too.
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In particular
, the second diagram illustrates that, once the wave has pulled out, the air goes down, so that the turbine is activated again. Linking Words
Due to
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this
movement, which is in the same direction as before, more electricity is produced.Linking Words
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