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Wind Energy and Its Harvesting Methods

 Wind Energy :

Moving air is called wind. Energy recovered from the force of the wind is called wind energy. The energy possessed by wind is because of its high speed. The wind energy is harnessed by making use of wind mills. 



1. Wind Mills :

The strike of blowing wind on the blades of the wind mill make it rotating continuously. The rotational motion of  the blade drives a number of machines like water pump, flour mills and electric generators. 



2.Wind farms :

When a large number of wind mills are installed and joined together in a definite pattern it forms a wind farm. The wind farms, produce a large amount of electricity .

Condition :

 The minimum speed required for satisfactory working of a wind generator is 15km/hr. 

Advantages :

i) It does not cause any air pollution.

ii) It is very cheap. 

Significance of Wind Energy :

1. The generation period of wind energy is low and power generation starts from commissioning.

2. It is recommended to broaden the nation's energy options for new energy sources.

3. It is made available easily in many off-shore, on-shore and remote areas. 

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