Efficiency and Effectiveness of Wind Power Generation

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Efficiency and Effectiveness of Wind Power Generation
With the reckless energy demand in the 21st century and the growing of global warming, which made by environmental pollution, energy supply has become the constraint and an obstacle to the economic development of many countries. To solve these kinds of puzzles, which can respond to the climate and energy challenges., people now pay more attention to all kinds of new type of renewable energy, which is good ecologically. Wind power is one of the optimal energy, which has great prospects. Wind is the movement of air across the surface of the earth, from areas of high pressure to areas of low pressure (Anon, 2010). Wind goes through the turbine motor then drive the machine to produce electricity, which is wind power generation. It is currently already used widely in many jurisdictions because of the attractiveness, significant negative externalities, and the performance which human society civilization progresses. Wind energy as an inexhaustible, clean, and also environmentally friendly energy, which is gradually paid more attention by people around the world. However, it also has some problems. Wind power generation needs to pay a lot to achieve operation, which made various countries to have a cautious consideration about that. But as wind turbine technology improves, costs may come down, become cheaper as turbines continue to grow in size and manufacturers drive down costs. So in this essay will make a sketchy overview of wind power generation. The wind used by people early mainly by windmills to pump water, flour, and now, people interested in is how to use the wind to generate electricity. If the power of wind can be utilized effectively, the non renewable energy will be replaced by wind power. Also, the reserve of the wind power is extremely huge. The global wind energy is about 2.74*109 MW and the available amount is 2*107 MW, which is ten times larger than the overall water energy that is available for use on the Earth (Libanciel 2011). As the result of the huge reserve of wind power, it is a viable and worthy of scale widely progress of renewable energy to reduce global energy crisis, which is a particularly good news for the economic development of the countries all over the world. Human can really make a full use of wind power thanks to the huge reserve, however, wind power generation field selection affects the results of the wind power generation directly. Wind energy supply is affected by a number of factors, especially the weather, topography and surface effects. Wind power in the air distribution is scattered and unstable. So before choosing the location, the advantage terrain, analysis, and judgment of building wind field locations is very necessary to be considered. Besides traffic, residents, economy and other factors of society should be calculated, and then the best wind farms address will be determined. All above the problems show that it is difficult to choose the best location of the wind farm. Wind farms are only effective when placed in proper locations. Therefore, selecting the best location of wind farms is critical in order to harness as much wind as possible and to generate large amount of electricity needed to be used in agriculture, residential, and commercial purposes (Wind Turbines LLC, 2011). Wind energy is a clean energy source. Comparing with coal fired plants, wind power generation will not produce any waste gas, waste water, waste heat or any other pollutions, which is the truly environmentally friendly energy that can be utilized in many areas. The former power station that fired coal had an efficiency of around 1%, and need 12.3 kg of coal for the generation of 1 kWh. This meant 37kg CO2 emissions per kWh(Hans dieter, 2005). Through this data we can distinctly analysis the quiet efficiency of coal fired generation and not ecologically friendly comparing with the wind power generation. As the consequence of using wind power...
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