The diagram below shows how electricity is genarated in a hydroelectric power station. Summarize the information by selecting and reporting the main features and make comparisons where relevant.

The given diagram illustrates how the hydroelectric power station generates

electricity

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.

Overall

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, the process runs around the clock — both day and

night

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.

To begin

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with, the

water

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from the river flows into the high-level reservoir

which

Punctuation problem

, which

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is blocked by the dam during the

night

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.

However

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, during the day, the dam will open to let the

water

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flow to generate

electricity

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by turning the reversible turbines

which

Punctuation problem

, which

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are installed with the generator at the power station. At

this

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stage, the generated

electricity

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is transferred across the power lines to the national grid,

while

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the

water

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that flowed through the turbines is stored in the low-level reservoir. At

night

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, the

water

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from the low-level reservoir is pumped back onto the same path, turning, once again, the turbines to generate more

electricity

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. The dam is closed at

night

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.

All the

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The

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process repeats

accordingly

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.