wind power

Wind power is one of the power plant,it is friendly with environmental.Wind is kind of power that could convert to new type of energy.This conversion is useful.Wind power can use in wind turbines to make electricity,wind mills for mechanical power,wind pumps for pumping water or drainage,or sails to propel ships.

Human have been using wind power for simple usage as propel sailboats and sailing ship.Windmills have been used for milling grain, in fact wind power slue the windmill,so water could pump so machine worked and grid. The new style of usage of wind power began in 1979 with the serial production of wind turbines by Danish manufactures Kuraint, Vestas, Nordtank, and Bonus.These turbines were smaller than today.And they just had 20-30 kW capacities.But today their capacity increase and deliver up to 7 MW.

Now a days, many country could produce these turbines.

There are now many thousands of wind turbines operating, with a total nameplate capacity of 157,899 MW of which wind power in Europe accounts for 48% (2009). World wind generation capacity more than quadrupled between 2000 and 2006, doubling about every three years. 81% of wind power installations are in the US and Europe. The share of the top five countries in terms of new installations fell from 71% in 2004 to 62% in 2006, but climbed to 73% by 2008 as those countries — the United States, Germany, Spain, China, and India — have seen substantial capacity growth in the past two years.

I saw in my class that Malaysia has these turbines on water,because in Malaysia the speed of wind on ground is not suitable for produce other energy,but in ocean or sea the government could use from wind for production electricity power.

In my country(Iran),we have many windy area,one of them is Manjil (windy city),the city is famous because of the wind,and has lot of wind turbines.In those area electricity power supply with wind,more over that if the wind flaw is powerful,it could transfer power to other city.These are some photos from Manjil's turbines.

Although wind turbines supply electricity power in Manjl,but there is a dam which protect from electricity power in there,because as u know these kind of sources couldn't be trusted.

Compared to the environmental effects of traditional energy sources, the environmental effects of wind power are relatively minor. Wind power consumes no fuel, and emits no air pollution, unlike fossil fuel power sources.So big companies could use from this sources for production electricity power by build their buildings near the windy area and make wind farm.

Although this power is friendly with environment but scientist are worried about birds that

fly near this farm,because turbines movement could kill them.

Overall, I hope human utilize more from these kinds of power which are friendly with environment and are more less or without harmful.