Wind+power

  =__//**Wind Energy**//__=

 Wind is air in motion, which means - energy. The source of wind energy is solar energy. The sun heats up different areas on the Earth. The temperature differences cause a certain place to have colder air than elsewhere. The cold air flows towards the hot air and wind is created. Today, wind energy is the most developing source of alternative energy.  Wind energy can produce electricity and special facilities, called wind turbines. These are Return elaborate, that when their wings go round they running a generator that produce power. Benefits: 1. The wind is a source of renewable energy, which means we can use wind energy again and again and this will not affect the amount of energy remaining.  2. The wind does not cost us money!  3. Wind energy production is environmentally friendly: it is not emitting pollutants into the air and does not create waste.   4. <span style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: white none repeat scroll 0% 0%;">In the winter the wind is stronger so we can produce more electricity. <span style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: white none repeat scroll 0% 0%; font-family: Arial,Helvetica,sans-serif; font-size: 11pt;"> <span style="font-family: Arial,Helvetica,sans-serif; font-size: 110%;"> <span style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: white none repeat scroll 0% 0%; font-family: Arial; font-size: 10pt;">Weaknesses: <span style="font-family: Arial,Helvetica,sans-serif; font-size: 110%;">1. Although wind is free, the turbines aren't! Establishment of wind farms and buying wind turbines are very expensive. <span style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: white none repeat scroll 0% 0%; font-family: Arial;"> <span style="font-family: Arial,Helvetica,sans-serif; font-size: 110%;"> <span style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: white none repeat scroll 0% 0%; font-family: Arial; font-size: 10pt;">2. To produce enough electricity, there is a need for many wind turbines, spreads over a large area. This has implications for the landscape and the open spaces. <span style="font-family: Arial,Helvetica,sans-serif; font-size: 110%;">3. When the wind is strong, it can produce more energy and it will be cheaper. The problem is that wind strength is never constant. <span style="font-family: Arial,Helvetica,sans-serif; font-size: 110%;">It changes from place to place. <span style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: white none repeat scroll 0% 0%;"><span style="font-family: Arial,Helvetica,sans-serif; font-size: 110%;">Wind farms can be placed in specific places, exposed to strong and stable wind.

Wind power is the convartion of wind energy into a form of energy we can use in our daily lives. People have used wind power for over 5,500 years for sailboats and sailing ships. Windmills (machines that convert the energy of wind to rotational motion) have been used for water pumping and for milling grain since the 7th century AD.

Wind power is a source of energy. In wind power we exploit the wind energy into a useful form of energy. For example we use wind turbines to create electricity and wind mills for mechanical power. All those machines work and contribute us just because we know to exploit the wind energy properly. Wind power is clean and renewable. Something important to understand is that there are a lot of sources of energy that are renewable such as nuclear power, and that there are other sources that are clean too. But wind power is clean and renewable, this make it a better use of energy. Wind power generation is very clean, it doesn't cause water or soil pollution or air pollution. In addition wind power is a long term of use energy because wind power generation uses natural and virtually inexhaustible source of power, so we can always create\produce electricity.