The diagrams below show the design for a wave-energy machine and its location. Summarise the information by selecting and reporting the main features and make comparisons where relevant.

The diagrams

illustrates

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illustrate

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the structure of a

system

which produces electricity from

waves

and the locations it can be set up. As can be seen from the first diagram, the wave-energy machine is constituted of two main chambers linked with each other via two air passages. The

turbine

is placed in the upper

chamber

while

the lower

chamber

is partly submerged in the sea

wate

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water

. As regards its operation, first, the sea wave enters the lower

chamber

and raises the water level there to push the air up to rotate the

turbine

before finding its way out at the top of the

system

. After

that

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,that

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the sea wave withdraws from the lower

chamber

, which creates a drop in pressure to suck the air back in from the opening in the top

chamber

to revolve the

turbine

and come down to the lower compartment of the

system

. The cycle is

then

repeated and creates

continuous

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a continuous

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force on the wings of the

turbine

to make it rotate and generate electricity. As is shown in the

second

diagram, the

energy generating

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energy-generating

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system

can be established close to the shore with smaller

waves

and lower installation

cost

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costs

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accompanied by more modest electricity output.

Howerver

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However

, when it is erected far offshore where the

waves

are more powerful, the cost of construction is higher and proportional to the electric yield.

Overall

, the diagram presents the working mechanism of a

power generating

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power-generating

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system

operating by

waves

and its possible locations which reveals the positive correlation between the energy output and the installation cost.