Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The flowchart illustrates the system of hydroelectric generation which is well-known as an environmentally friendly electric generation system over the world. As a whole, there are four stages in the process namely

water

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through a sluice gate, turning a

turbine

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,

power

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generation, and

power

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transmission. Looking at the diagram in detail, the process starts with

water

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flowing from a slice gate in a storage reservoir to a

turbine

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.

This

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is followed by the

turbine

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whirl because of

water

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pressure from a dam. During the

second

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stage,

water

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, which flowed from the dam, flow to the downstream outlet. When it comes to the

third

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stage,

power

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is generated by spinning the

turbine

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in a powerhouse. The reason it can generate

power

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is so that a shaft is connected between the

turbine

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and the electricity generator. Eventually, in the fourth phase, the generated

power

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is supplied by

power

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transmission cables.

In addition

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, in the

last

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phase, the voltage of generated

power

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is transformed into the appropriate supply voltage by a transmitter.