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Essay about advantages of renewable energy
Renewable energy pros and cons
Renewable energy pros and cons
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“Is Renewable energy an economically viable option for South Africa?” “Renewable Energy is a source of energy that is not exhausted when used.” “Economical means giving good value in relation to the resources used or money spent.” “Viable means capable of working successfully; feasible.” (Soanes, Hawker & Elliot et al., 2005) So in other words, is renewable energy an affordable and successful option for South Africa. Per year South Africa uses 1.3 % of the world’s total energy. South Africa’s main energy comes from coal, but one quarter of the coal we mine is exported to other countries. In 2009 71.1% of the total energy sources in South Africa were coal and hydroelectric energy had 0,1%. The one major reason hydroelectric energy in South Africa is so low is because this country is a water scarce one, which means that the hydroelectric power stations don’t have enough water to produce electricity efficiently. Eskom produces 95% of the electricity in South Africa and about half the electricity in Africa. Most of the electricity that is produced is from coal, but not all of it, other sources include gas, wind, hydroelectric and nuclear energy. Renewable energy in South Africa would have effects on our economy because coal demand is shrinking so soon coal mines will close down, new technology may have to be bought or built if the wind and sun energy sources will start to be used, wind farms and solar panel fields will be small whereas coal power stations take up a lot of space. Wind and solar power are small contributing factors to South Africa’s energy supply, but over the next few years they may become big major energy contributors because we have vast open areas of solar panels and the coastal areas can get really w... ... middle of paper ... ...ica. Verster, R. pp. 119-122 Dilley, L.; Earle, J.; Keats, G.; Nxele, A.A. & Ravenscroft, G. (2012) Conventional energy sources and their impact on the environment. Focus Geography Grade 11. 4th edition. Cape Town, South Africa. Maskew Miller Longman. p. 263 Dilley, L.; Earle, J.; Keats, G.; Nxele, A.A. & Ravenscroft, G. (2012) Non-conventional energy sources. Focus Geography Grade 11. 4th edition. Cape Town, South Africa. Maskew Miller Longman. pp. 274-277, p. 280 Banks, D. & Schaffler, J. (2006) The potential contribution of renewable energy in South Africa. 2nd edition. [e-book] RAPS Consulting & Nano Energy,prepared for SECCP, Earthlife Africa Johannesburg. Available from: http://projects.gibb.co.za/Portals/3/projects/201002%20Nuclear%201/Appendix%20D%20Public%20Participation/App%20D8/potential%20of%20RE%20in%20SA%20Feb06.pdf [Accessed 7 April 2014]
The Web. 4 July 2011. Sims, Ralph E. H. et al. “Chapter 4: Energy Supply.” Contribution of Working Group III to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, 2007.
Palmieri, Nancy. “Off the Grid or on, Solar and Wind Power Gain.” USA Today 12 April 2006. Print.
Many people support the idea of alternative energy, yet there is no move to implement it as a viable alternative to fossil fuels. It is the burning process that makes fossil fuels so bad for the environment. An alternative source that does not require combustion is necessary to avert the process of global warming. Wind power and hydroelectric power both turn t...
Aboriginal communities, much like many other communities around the world, have relied on natural gas and fossil fuels. These fuels, while effective for producing energy, are detrimental for the environment and are limited in amount. People, including some aboriginal communities, have been turning to alternative energy sources to generate electricity. The use of these alternative energy sources has some potential issues.
There has been advancements on many fronts to make economical and financial viability assessment for Renewable Energy Projects possible, including (but not limited to) production costs (e.g.McAloon, F. Taylor, Yee, Ibsen, & Wooley, 2000); transportation costs (Batidzirai, 2005; Overend, 1982; Searcy et al., 2007); capital costs (Bridgwater & Double, 1991; Gallagher, Schamel, Shapouri, & Brubaker, 2006); resources availability (Graf & Koehler, 2002); environmental performance (Von Blottnitz & Curran, 2007; Taheripour, Hertel, Tyner, Beckman, & Birur, 2008; Pimentel & Patzek, 2007); regional socio-economic development (Swenson & Eathington, 2006), and organizational costs (Altman & Johnson, 2008).
Energy is the basic necessity of daily life. Nowadays, dependence on fossil fuels for energy needs becoming lower in numerous countries due to the potential of renewable energy to supply sustainable energy to the huge populations in many developing countries who are short of clean and continues energy. Generally, renewable energy can be defined as energy that is derived from natural resources which are constantly replenished and theoretically inexhaustible. Fossil fuels on the other hand can be described as energy that cannot be renewed and will eventually diminish. Thus, in many developing countries renewable energy is the alternative energy to replace non-renewable energy or commonly known as fossil fuels. In addition, according to Sorensen (2004), there is a greater demand for renewable energy sources nowadays due to the uncertainty of fuel price rise in living expenses. Commonly, there are many types of renewable energy available in our world such as wind power, biomass energy, solar energy, hydroelectric power and geothermal energy. However, the main three example of renewable energy are hydroelectric power, solar and biomass energy (Refer to Figure 1 in Appendix 1).
At the time of South Africa’s current energy crises, our government is concentrating on sustainable means with which to produce power, such as wind farm projects, as a cheaper, greener alternative to coal power stations.
In addition to the fact that solar, wind, and hydro power are local resources, they are also emission free resources. Emissions and pollution are a key concern with traditional power sources. The coal-fired plants that dominate U.S. energy production also produce more emissions than any other energy source. “Em...
I believe any negative economic effects that the transition from traditional to renewable energy may have on our economy would be counteracted by the plethora of positive effects that would come about as a result. According to ucusa.org, renewable energy already supports thousands of jobs in the United States alone. For example, in 2011, the wind energy industry directly employed 75,000 full-time-equivalent employees in a variety of capacities, including manufacturing, project development, construction and turbine installation, operations and maintenance, transportation and logistics, and financial, legal, and consulting services. Other renewable energy technologies, such as the solar industry, employ even more workers. According to the National Solar Job Census taken in 2011, over 100,000 people were employed both part-time and full-time within the industry. That data alone is a promising figure considering renewable energy is still in it’s
Nelson, V. (2008). The 'Standard'. Introduction to Renewable Energy. Chicago: Springer University Press, Inc.
Wind power is one of the most sustainable ways of generating electricity as no toxic emissions are produced; it does not add to global warming and is one of the most available sources of renewable energy and theoretically it is an infinite source of energy. On sufficiently windy areas, wind turbines are one of the most economical methods of generating electricity, which makes it appealing to many individuals, governments and organizations. Due to this it is the fastest growing source of electricity in the world (Union of Concerned Scientists, 2014) with a 10% increase in yearly additions installed in 2012 compared with 2011 (Global Wind Energy Council, 2012). However the proportion of energy that can be harnessed through wind power is restricted by the cost of the infrastructure needed, construction, the amount of wind that occurs and that there are only a narrow number of sites within the UK that are windy enough for the wind turbines to be worth installing.
In the search for alternatives to fossil fuels, scientists and policy makers have focused on three options: nuclear power, energy from biomass; and a combination of wind, water, and solar power. Nuclear power, however, is much more costly and runs the risk of having it fall into the wrong hands where it could be turned into a weapon of mass destruction. The third option entails wind turbines, photovoltaic power plants and rooftop systems, concentrated solar thermal power plants,...
The world that we live into today affords us the expectation that the flip a switch will turn the lights on. As populations increase and developing nations undergo dramatic economic growth, this energy demand will only continue to grow. The International Energy Agency (IEA) believes that “the world’s energy needs could be 50% higher in 2030 than they are today” (ElBaradei). Given this projected growth, it is necessary for world leaders must take action to secure the energy supply. Meaning that world leaders need to start seriously considering an alternative to non-renewable energy sources. “In 2012, the United States generated about 4,054 billion kilowatt-hours of electricity. About 68% of the electricity generated was from fossil fuel (coal, natural gas, and petroleum), with 37% attributed from coal” (U.S. Energy Information Administration). The fossil fuels that are used to supply over half of our country’s energy are in finite supply and are increasing in price to astronomical heights.
Deal, W. (n.d.). Wind power: An emerging energy resource.Technology & Engineering Teacher, 70(1), 9-15. Retrieved from http://web.b.ebscohost.com/ehost/detail?sid=a747d6c4-9f9f-4066-be3e-d7d26a427ef2@sessionmgr115&vid=1&hid=114&bdata=JkF1dGhUeXBlPWNvb2tpZSxpcCxjcGlkJmN1c3RpZD1zc2Mmc2l0ZT1laG9zdC1saXZlJnNjb3BlPXNpdGU=
Environmental science refers to the study of the effects that occur through natural and unnatural processes. The study involves the interactions of the Earth’s physical components that take place on the environment. Notably, the natural environment consists of all existing and non-existing things that exist on the planet. Full ecological systems that operate as natural practices without requiring the intervention of human beings are also included in the environment. Furthermore, physical units such as animals, vegetation, rocks, microorganisms, natural phenomena, and atmosphere usually occur within the boundaries of the environment (Altman and Wohlwill 113). Although the environment embraces natural resources and physical phenomena that need clear limits, it is worth noting that renewable and non-renewable energy resource is an environmental science topic that should receive top priority next year due to various reasons.