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The image presents a diagram illustrating the process of electricity generation in a hydroelectric power station. The system includes a high-level reservoir, a dam with sluice gates, a water intake with day/night operation, reversible turbines, a power station with a generator, and power lines connecting to the national grid. During the day, water from the high-level reservoir passes through an open gate and intake, activating turbines that rotate and operate the generator to produce electricity. At night, the intake is closed, turbines are reversed to pump water from a low-level reservoir back into the high-level reservoir, conserving water for future electricity generation. There are no numerical data points or percentages provided in the diagram.
Given the complexity of the image, the above description may not be entirely accurate.
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The diagram depicts the procedures a hydroelectric power station undergoes to produce electricity. It is clear from the diagram that in order to generate electricity, the hydroelectric power station keeps on working in a reverse direction at night.
According to what is shown, there are two phases that contribute in producing electricity. As for the first phase which takes place during the day, when the dam collects enough amount of water, the water flow into a reversible turbine. The turbine passes some of the water into a low-level reservoir, while the other part is used by the generator in the power station to generate electricity as power lines used by the national grid.
Moreover, at night, the water in the low-level reservoir passes through the power station, where the turbines pump the water into the high-level reservoir.
To sum up, we could say that the reversible turbines in the power station, operate as a generator during the day, while at night it serves as a pumper.
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