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The image illustrates hydroelectric power generation, depicting key features: a river feeding a high-level reservoir behind a dam with intake open during the day and closed at night; water flows during the day through pipes to reversible turbines and the power station where it generates electricity, subsequently directed via power lines to the national grid; used water is redirected to a low-level reservoir; at night, reversible turbines pump water back to the high-level reservoir.
Given the complexity of the image, the above description may not be entirely accurate.
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The diagram illustrates the way in which electricity is produced by hydroelectric power.
Overall, hydroelectric power is cyclical which consists of four main parts: flow of river water, turbine movement, power production and finally pumping water to the river.
To begin with, river water is collected behind a dam where there is a reservoir. Afterwards, water from a reservoir goes through a pipe. Once water has been reached to the turbine, turbine starts spinning which results in activating generator and water itself flows to another reservoir. Next, generator produces electricity and send through power lines to national grid. Finally, at night water returns back upward to the river.
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