| Papers [1-5] of 5 | Search results on "PHOTOVOLTAICS": |
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Photovoltaics, 2002.
A thorough overview of the technology of photovoltaics, also known as solar panels.
3,840 words (approx. 15.4 pages), 16 sources, MLA, $ 105.95
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Abstract
This is an essay on solar panels that explains the history of their development. It examines how they work, different types and their practical application, losses, home systems, positioning, economics, and the future of photovoltaics.
From the Paper
"Presently millions of people use solar electricity every day, anyone reading this essay will more than likely have used it unknowingly many times before. A simple calculator usually posses a small solar panel, some watches have solar panel faces, and the screen on a laptop that?s just a solar panel working in reverse. Yet major generation of solar electricity has remained relatively miniscule. Now we are in the year 2003, and there are many signs it is gathering strength fast. Solar is poised to become a vital contributor to world energy production. It?s almost surreal to think that solar provides clean energy, less smog, less air pollution and diminishes our dependence on fossil fuels. If our modern society wishes to proceed with ever advancing standards of living, we need to move into the future where solar and others can provide us with the environmentally friendly energy our society is destined for. This destiny is becoming more and more a reality as electricity prices skyrocket, power disruptions abound, and blackouts become more frequent. The opportunity for personal generation is predicted to reach 26% of total world generation by 2040 (Photovoltaics Bulletin 2002). In the near future solar energy generation will produce significant amounts of electricity with its advanced technology, leading economics and residential systems."
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Photovoltaic Cells and Solar Thermal Power Plants, 2005.
A comparison of photovoltaic cells and solar thermal power plants.
2,700 words (approx. 10.8 pages), 4 sources, $ 106.95
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Abstract
This paper compares two technologies, photovoltaic cells and solar thermal power plants, both providing energy from solar radiation, but by different means and in different degrees. It looks at how the photovoltaic cell is used in limited situations for powering small appliances and how solar thermal power plants are able to produce much more energy for use on a widespread basis by consumers, industry and entire countries. The relative costs are noted, along with economies that will be realized once these systems are more widely used.
From the Paper
"This report summarizes two related technologies, the photovoltaic cell and the solar thermal power plant, both methods of producing energy from solar radiation. The photovoltaic cell is used in limited situations for powering small appliances, and solar thermal power plants are able to produce much more energy for use on a widespread basis by consumers, industry, and entire countries. The relative costs are noted, along with economies that will be realized once these systems are more widely used. Introduction One of the great unknowns in American energy policy remains the extent to which solar energy in its various forms will contribute to the nation's energy supply in the future. After the oil, embargo in 1973, considerable interest was expressed in solar energy as a potential way of producing energy and of reducing dependence on foreign oil. "
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Solar Renewable Energy, 2007.
A brief overview of solar energy technology and how to maximize the efficiency of a system using government incentives.
908 words (approx. 3.6 pages), 3 sources, MLA, $ 32.95
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Abstract
This paper discusses how the use of solar power could free us from hazardous gases emitted by fossil fuel combustion. It looks at how photovoltaic technology takes the energy of the sun and directly converts it into electricity and how PV's are found in navigational buoys, calculators, yard lights, watches, electric fencing, streetlights, and irrigation pumps. The paper contends that because energy from the sun is free and readily available unlike fossil fuels, we can set up an affordable system that will provide free electricity for our basic needs at an initial cost comparable to alternative forms of energy.
From the Paper
"A solar-thermal system collects the sun's energy and uses it to heat liquids. The heated liquid can be used to generate steam, which can then be used to turn turbines for electrical power. The steam can also be used for heat. In California, approximately 350 megawatts of power are produced by solar-thermal plants in the Mojave Desert. A well designed solar-thermal system in a home can reduce the cost of energy by as much as 85 percent and pay for itself in approximtely five years. Solar-thermal power releases no pollution and creates no waste, however in order for this system to operate, a lot of sunlight is required. "
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Alternative Power, 2001.
An outline of the responsibilities and research of the renewable energy source ESEP group. In addition to describing the roles and each member of the group, the proposal explains the urgency and significance of perfecting non fossil fuel energy sources.
5,415 words (approx. 21.7 pages), 23 sources, $ 133.95
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Abstract
This research discusses the world?s current energy crisis. Fossil energy comprises the majority of the world?s energy source; however, these fuels pose threats to the environment and do not provide a renewable source of energy. Analysts predict that the world will run out of fossil fuels in forty to fifty years. Due to this impending crisis, experts research and attempt to determine renewable energy sources that meet the world?s growing energy needs while considering the technical, environmental, financial, and social impact of these alternatives. This report summarizes four of the most developed renewable energy options that could feasibly replace fossil fuels as a source of energy, including fuel cells, solar power, wind power, and hydroelectric power. Fuel cells use substances such as methanol and oxygen to react and provide energy; however, obtaining a clean, reliable hydrogen source and lowering the cost must precede implementation. Solar power harnesses the sun?s thermal with photovoltaic cells to produce electricity; the paper focuses on concentrating solar technologies and the addition research required to employ this alternative fuel source. Wind power uses turbines situated in a field to capture the kinetic energy of the wind; as one of the most frequently used renewable energy resources, this solution may become feasible as prices decrease. Hydropower uses flowing water through a system of turbines and generators to produce vast amounts of clean energy, but its environmental impacts are serious and widespread. All of these renewable energy sources have advantages and disadvantages when it comes to producing energy on a large scale. Some of these factors include cost, efficiency, environmental factors, and political and social factors. The report recommends an increase in research for each of these fields, and concludes that these renewable energy sources will only develop if society as a whole accepts the financial burden that accompanies them. Overall, the financial burden of renewable resources does not compare to the devastating effects that continued fossil energy usage will leave on the environment.
From the Paper
"As the global energy crisis worsens, scientists and researchers internationally race to refine and implement renewable energy resources to provide societies basic power needs that do not depend upon the consumption of natural resources. Within the next century, if energy consumers continue to rely on resources such as coal, petroleum, and other fossil fuels at the current rate, society will deplete its fuel reserves, specifically petroleum, to the extent that alternate power sources become necessary to maintain current standards of living based on power sources. Environmentalists, scientists, and the general public target fossil fuel usage as the primary cause for the environment?s poor condition; renewable resources will offer an opportunity to prevent and possibly improve damage caused by pollution from power procurement. Globally, consumers are ill-prepared for our inevitable reliance upon renewable energy resources; moreover, developing countries in the process of electrifying their citizens will not have the means to progress in the same energy-technology development cycle and cannot base their tenuous energy dependence on a rapidly waning fuel source. In the absence of fossil fuels, people must rely on new forms of transportation and energy to power our increasingly
technology-based society. Renewable resources, such as fuel cells, solar power, wind power, and hydro power offers an environmentally-savvy alternative to fossil fuels, yet many of these technologies require further research, refinement, and optimization before we can rely upon them as a substitute for fossil fuels in basic power needs (SolarPACES 1). The problem involves ensuring global preparedness when low energy reserves mandate the use of renewable energy resources through proper allocation of renewable energy technology, ethical support from the public and the government, financial flexibility, and environmental sustainability."
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Energy Reliance in the U.S.A., 2002.
This paper attempts to propose a solution to the problem of the emerging energy crisis in America.
1,510 words (approx. 6.0 pages), 11 sources, MLA, $ 49.95
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Abstract
The paper begins by looking at the fossil fuel problem ? the depletion of these fuels and the pollution associated with these fuels. It also looks at the problem with foreign suppliers of oil - the instability and pressures that are continually placed on political and militarily considerations in those areas. The paper then moves on to valid alternatives for fossil fuel, namely; photovoltaic technology, fuel cell technologies, use of the windmill and hydrogen power. The paper concludes by proposing solutions to the problem of fossil fuel reliance.
From the Paper
"America currently relies heavily on oil, natural gas, coal, and other types of non-renewable fuels in order to maintain the energy needed to run America. The American leadership utilizes relationships with many oil-producing countries in order to keep their position of buying and selling the energy needed to suffice the American appetite. A solution to the reliance on fossil fuels must be uncovered in order for America to not be caught in an energy shortage."
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