The diagram below shows how electricity is generated in a hydroelectric power station.
Summarize the information by selecting and reporting the main features and make comparisons where relevant.
Write at least 150 words.
A high level reservoir behind a dam fed by a river
An intake under the dam open in day and closed at night
Flow of water downwards during the day to generate electricity
Flow of water upwards during the night pumped backwards
Water channeled to a power station
Reversible turbines spin the generator during the day producing electricity directed to power lines and then national gird
The water to produce electricity during the day directed to a low-level reservoir
The reversible turbines pumping water at night from the low-level reservoir to the high-level reservoir
The diagram presents an overview of the process by which electricity is generated in a hydroelectric power station. The system operates through a series of steps, ranging from water intake to power generation and storage, enabling the efficient utilization of water resources for sustainable energy production.
The process begins with a high-level reservoir situated behind a dam, designed to store water. The reservoir is fed by a river, which acts as the primary source of water flow for electricity generation. During the day, an intake located beneath the dam remains open, allowing water to flow downwards. As the water passes through turbines within the power station, its kinetic energy is converted into mechanical energy, driving the turbines and generating electricity. Once electricity is generated, it is directed to power lines and the national grid for distribution to consumers and industries.
Conversely, during the night the process is reversed to optimize efficiency. The intake under the dam is closed, halting the flow of water through the turbines. Instead, the stored water in a low-level reservoir is pumped upwards by the reversible turbines.