The diagram below shows how electricity is generated in a hydroelectric power station.

The diagram describes the way that electricity is produced by a hydroelectric power plant.

This

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writing will indicate the main features of the production of energy and compare them when necessary.

Overall

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, there are two stages of producing energy, the first one is the outside part of the generator and the second one is the mechanism inside the plant. To start with, water is supplied from the nearest river, stored in a dam, and

then

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flown below the structure to the bottom inlet of the power station.

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, there is a valve installed at the bottom of the dam

that is

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capable of opening

in

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during

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the day and closing at night as the water from the lower reservoir is pumped back into the river. Once inside the building, water flows through reversible turbines to rotate the generator,

hence

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generating electricity which is

then

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transferred using power lines to the national grid.

Moreover

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, similar to the intake system in the high-level reservoir, the turbines’ function is able to be altered to pump the fluid from the lower ground to its initial position.