You should spend about 20 minutes on this task.

The diagram below shows the process of using water to produce electricity.

Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

Write at least 150 words.

The diagram shows the process through which water is used to produce electrical power. Overall, hydroelectric power is generated using water from the sea through a relatively sophisticated procedure which comprises over ten stages.

The process begins when seawater is heated by the sun and evaporates to form small clouds in the sky. Next, they merge into a storm cloud, which then rains over the mountain. This rainwater is gathered in the reservoir behind a dam. The following steps involve a pipe which connects the reservoir to a turbine as well as a pump, and is controlled using a valve. Once this valve is opened, water flows into the turbine and rotates it to produce electrical current, following which it is pumped back into the reservoir. After this, the electricity produced by the turbine is transferred to the transformer station through high voltage cables. The last stage is when the electrical power is delivered to domestic and industrial consumers, as well as educational and medical facilities.

(169 words)