IELTS Task 1 – Hydroelectric Power Station
IELTS Task 1 – Hydroelectric Power Station
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.
Three Introductions
- The illustration shows the process of how electricity is produced by means of the hydroelectric power station. Overall, the first half of the cycle happens during the day when water will flow from one container to the other.
- The picture describes the step-by-step procedure of how hydroelectric power generation creates electrical energy. Overall, during the day, the water will flow from one reservoir creating force to move the generator.
- The process illustrates the process of how water could produce electricity using a hydroelectric power station. Overall, the flow from water placements from one container to another creates electrical energy.
Version 1
The illustration shows the process of how electricity is produced by means of the hydroelectric power station. Overall, the first half of the cycle happens during the day when water will flow from one container to the other.
During the day, the dam releases water, which is from the high-level reservoir originating from the river, and will flow through a pipeline downward. The force created by the flowing water will move the turbines which create kinetic energy and will soon be converted to electrical by means of the generator. The electrical power will be transferred to the national grid lines while the water will be placed on a low-level reservoir.
At night, this water will go back to the turbine, but this time the water will be pumped upwards. Since the intake is closed during the night, the water will be going back to the high-level reservoir and repeat the cycle again in the morning.
Version 2
The picture describes the step-by-step procedure of how hydroelectric power generation creates electrical energy. Overall, during the day, the water will flow from one reservoir creating force to move the generator.
A dam is created in order for a large volume of water that comes from the river to be stored in a high-level reservoir. During the day the intake located on the bottom part of the dam will be opened releasing water, and it will go through to a pipe. The reversible turbines that are located on the end of the pipeline will spin due to the gushing force from the water and this will create kinetic energy to be converted into electrical power using a generator. The produced electricity will now be transferred to the national grid using power lines.
The water that was used will be placed into the low-level reservoir and at night, the turbine will act as a pump, pushing the water upward and the water is placed in the high-level reservoir and the water will not go back to the pipe as the intake is closed during nighttime.
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