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Wind Farms

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Jagjit Dhillon Physics 10L

Wind Farms

As the world becomes more and more polluted we are trying to come up with new ideas for using energy, we already do have some methods of collecting and using energy without polluting the environment, the first one is HEP (hydro electric power), this method of collecting energy is done by river dams from water. Another is solar energy; this way of collecting energy is done by a solar panel board collecting UV rays from the sun. The method which I will be investigating today is Wind Turbines. Wind turbines are often used on farms, energy is collected by the turbines, the wind makes the turbines move, and therefore energy is stored.

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Although there are so many advantages of having wind turbines there are also a lot of disadvantages. For example, the strength of the wind is not constant and it varies from zero to storm force. This means that wind turbines do not produce the same amount of electricity all the time. There will be times when they produce no electricity at all. Also many people feel that the countryside should be left untouched, without these large structures being built.

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Offshore wind development zones are generally considered to be ten kilometers or more from land. Offshore wind turbines are less obtrusive than turbines on land, as their apparent size and noise is mitigated by distance. Because water has less surface roughness than land (especially deeper water), the average wind speed is usually considerably higher over open water. Capacity factors (utilisation rates) are considerably higher than for onshore and nearshore locations.

In stormy areas with extended shallow continental shelves, turbines are practical to install.

Offshore installation is more expensive than onshore but this depends on the attributes of the site. Offshore towers are generally taller than onshore towers once the submerged height is included.

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