3. Wave Power
Waves are a powerful source
of energy and there are
several methods of getting
it from them.
4. How does it work?
At a wave power station, the
waves arriving cause the
water in the chamber to rise
and fall, which means that
air is forced in and out of
the hole in the top of the
chamber and turns the
turbine.
Turbine then turns a
generator, which produces
electricity.
5. How does it work?
Each Pelamis has three power modules joined by tubular sections. Waves cause the
modules and tubes to move in relation to each other.
This motion is resisted by hydraulic rams in each of the joints.
The hydraulic rams pump high-pressure oil through hydraulic motors. The hydraulic
motors drive electrical generators to produce electricity.
6. Advantages
1.Low operational and maintenance
costs.
2. No CO2 emission.
3. It is renewable, so we won’t run out
of it.
4. There are many ways to harvest it.
5. No damage to land.
6. It is easily predictable, because it is
consistent .
Disadvantages
1.The wave energy plants are usually far
from areas of energy consumption.
2. Some designs can be very noisy, but
waves make a lot of noise themselves so
it’s not a big problem.
3.Only certain areas are suitable for wave
power plants.
4.It can be dangerous to some sea
creatures near it.
5. It can disturb commercial and private
vessels.
6. Visual pollution.
