The Diagram Shows How Electricity Is Generated In A Hydroelectric Power Station

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

Sample report

The diagram shows how a hydroelectric power station produces electricity. In order to generate electricity from water, a huge dam is built across a river to collect water. There is a power station adjacent to the dam. The water collected in the high level reservoir is pumped into the power station during the day through an opening at the bottom of the dam. In the power station, there is a generator connected to a reversible turbine and power lines. The water causes a reversible turbine to rotate and this rotation enables the generator connected to the turbine to generate electricity. Power lines are connected to the generator and through these power lines this electricity is sent to the national grid from where it gets distributed to homes and industries. At night, water from the low level reservoir is pumped back into the high level reservoir with the help of the reversible turbine.

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