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

The diagram illustrates information about a linear

process

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of generating electricity in a hydroelectric energy plant.

Overall

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, it can be seen that the

process

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commences with the flow of

water

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from the river to a reservoir and finishes with the transmission of electricity to the national grid.

Also

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, the whole

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can be categorized into day-time activities and night-time ones. Regarding the day-time

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, the

water

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which is from the river fills the high-level reservoir which has a dam. The dam is open during the day to let

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go to the station in order to generate electricity or be kept in the low-level reservoir to will be used at night.

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, there are two turbines in the power station which day-time one activates the generator to generate the power line for the national grid. Alongside the daily

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, there is another route at night.

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in the power station has two different purposes; the night-time aim is that another turbine pumps

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from the low-level storage into the high-level one to fill the amount of

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behind the dam to accelerate the aforementioned

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.