Wednesday, July 24, 2019
Wind Energy (Is wind energy really that cheap Is it effective Is it Research Paper
Wind Energy (Is wind energy really that cheap Is it effective Is it practical) - Research Paper Example Wind is also a form of solar energy, because winds are mainly produced because of the temperature irregularities in the atmosphere caused by the sun, the unevenness of the earthââ¬â¢s surface and its rotation. Then this energy is used to turn the turbines and produce electrical energy. Basically the wind turbines are used to convert this wind energy into mechanical energy, which is later on used to transform it into electrical energy via generators or alternators. If we go through a brief history of electricity generation from wind turbines, Denmark was the first one to do it, who was able to produce 5 to 25 kW by 1910. Then in around 1925, wind-electric plants ranging from around 200 W to 3 kW were commercially available in the American market, and then in that era, the largest wind turbine was made in 1941 by Palmer C. Putnam with a capacity of 1250 kW. It was a hybrid hydro-electric capacity, in which, wind was the main source of energy, but in the absence of wind, water could also be used to turn the turbines. ... y unlike conventional power plants, which usually use furnace oil, diesel and coal, emitting a lot of pollution, thus badly affecting the environment. In 1990, according to the US Energy Department, the production of electricity using wind energy reduces the production of about 2.4 billion pounds of carbon dioxide and around 14.9 billion pounds of other pollutants. The cost of wind energy is reduced up to much of the extent in last 10 years, but still, it requires higher initial investment as compared to fuel generators. But the main cost is the machinery cost, which is around the 80% of the total cost. Whereas the running cost is almost free as compared to other sources of generating energy. So if we examine the total overall initial and total cost of the wind systems with other fossil fuel systems, then the cost of wind systems is quite competitive with other systems because on one hand where it saves the running cost or reduces it to the minimal, it also saves the fossil fuels, wh ich are reducing in the earthââ¬â¢s crust day by day. Thus the energy produced from the wind also provides a soft edge against the increase in electric power prices as the prices of fossil fuels are increasing gradually. Another major issue, that we have to face while using wind as a power source is that wind is an intermittent source, for it is sometimes available at the required rate and sometimes it is not available. So it may or may not work, whenever electricity is needed, or at places where electricity is needed at every time. Though electrical energy produced by the wind mills can be stored in batteries, but wind itself cannot be stored anywhere to be available at the timing of electricity demands. And usually wind blows at faster rate in remote locations, which are usually far away
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