Energy Sources Essay - 2056 Words

Introduction Electricity is generated by the use of energy. Before going further, it will be necessary to talk briefly on what energy is all about. In this modern day, the standard scientific definition of energy is the capacity to do work, which means ability to move an object against a resisting force (Boyle 2003). According to (Beggs 2009) a physicist or an engineer will best describe energy in a form of an illustration. I.e. consider a mass of 1kg which is raised 1m above a surface on which it was originally resting. Therefore, in order for the weight to have been lifted above the surface, a machine or someone must have performed work. Simply, what this means is that, to have raised the mass from a low level to a higher level, work†¦show more content†¦Examples of these fuels are coal, oil and natural gas. Because these fuels took millions of years to form, there are growing concerns that once used up; it will not be possible to replace them. Which means attentions will have to be shifted to the renewable energies in order to address the problem in the future because these fossil fuels currently supplies nearly 80% of the world’s current energy consumptions (Boyle 2003). Looking at the three types of fossil fuels, Oil as a liquid fossil fuel and natural gas as a gaseous fossil fuel are both formed from the remains of marine microorganisms. Oil and natural gas have been called the noble fuels, by comparison with noble metals such as gold and silver. These two are amongst the most concentrated natural stores of energy, and being fluids, made them fairly easy to transport from one place to another and very convenient to use. On the other hand, coal is a solid fossil fuel which is formed over millions of years by decay of land vegetation. They can be referred to as ignoble fuel because they are particularly unattractive energy source. In comparison to oil and natural gas, coal is less convenient to transport, store or use. It produces up to twi ce the amount of carbon dioxide for the same useful heat, and this is by no means its only undesirable environmental effect. But even with is environmental effect, coal is still widelyShow MoreRelatedEnergy Sources Of Energy Source Essay1464 Words   |  6 PagesEnergy is a big part of our lives. We are heating our homes with natural gas or electricity and driving to and from work and any other outdoors activities. Our main source of the energy people use is fossil fuels and in the future, the availability of those sources has an end date. As studies show there are renewable resources of fuel and other equipment used for energy like wind, nuclear power plants and solar hydroelectric. There are many pros and cons to all forms of energy source, and theyRead MoreSources Of Energy1062 Words   |  5 Pagesrenewable sources in our existing infrastructure, major challenges are arising, as their supply is generally unstable and unpredictable. 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