Archive for the ‘Green Energy’ Category
Alternative Energy is meant to replace the existing sources
Tuesday, February 2nd, 2010Alternative energy refers to any kind of usable energy which can ultimately replace the existing fuel sources and that will not have any undesirable effects on the planet. Alternative energy totally excludes nuclear energy and the use of fossil fuels which emit carbon dioxide that has a negative impact with regards to global warming. The meaning of alternative energy over the years has changed considerably as nowadays there is a variety of energy substitutes. There have been many controversies with regards to the different forms of alternative energy and there are only three alternatives such as solar power, wind power, and hybrid electricity and each of these alternatives involve separate technologies and investments. For instance photovoltaic solar power revolves around semiconductor processing which will ultimately afford huge reductions to the people who understand the micro processing technology. Researchers are now stating that PV solar energy maybe the only alternative energy technology that could be viably cost effective over the next five to ten years. Industrial costs could be halved by using the advanced thin film solar cells in the future. Although the other viable alternative energy is wind power and at present is a stable alternative.
The alternative wind energy resource is determined by how strong the winds are as well as the grid and steel investment needs. PV electricity is dependent on the price and demand of silicon although there are companies that sell a complete solar cell such as Q cells which is creating a barrier for other companies that want to produce a complete solar module and due to this irrational pricing could result. At present there is a dispute with regards to ecologically friendly alternative energy for instance Holland was using palm oil as a substitute for bio fuel and researchers have now stated that palm oil could be more harmful than using fossil fuels which has resulted in Holland no longer using palm oil as an alternative. Another commercially viable resource of alternative energy is cellulosic ethanol. Relatively new concepts for alternative energy are offshore and floating wind farms as these are able to harness the winds blowing off the ocean without any obstructions and can also reach much higher speeds as opposed to coastal areas. Alternative energy fuel vehicles such as hybrid and battery operated vehicles are now starting to become popular and the industry is gaining acceptance worldwide.
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