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Home » Solar Energy (87 Papers)

Benefits of Solar Energy Industry in the U.S.A.
Solar technology refers to the technology of using the sun's rays of energy in order to provide heat, light, heated water, and even electricity, which can be used in homes, business establishments, and in schools, and so on. Solar energy can also be utilized for cooling purposes, and there are in fact several different types of solar energy. Some of them are: 'photovoltaic' or solar cell systems, passive solar heating systems, and day lighting, and also space heat or cooling systems. (National R ... Solar energy can also be utilized for cooling purposes, and there are in fact several different types of solar energy. ... (National Renewable Energy Laboratory: Solar Research) As more and more people everywhere are learning the benefits of solar energy and the ways and means in which this versatile energy may be used, industries based on solar energy systems have been reaping the benefits. ... (Fast Solar Energy Facts, Global Performance) It must be remembered that solar energy apparently is the best solution to today's energy problems, if only because of the fact that it seems to b... Wordcount: 1350 Pages: 5 Bibliography
Solar Energy Electrical Source
A livable society in which all essential sources of man-made energy, which is virtually pollution-free and affordable, seems impossible. Although such a concept seems like science fiction today, real efforts are underway to assure that by the late 21st century, what once seemed like a dream, will be reality. This dream is slowly being achieved through improved conservation methods and what will become decades long restructuring of our energy economy. "During this time, innovative energy tech ... Japan now pays half the cost of rooftop solar energy plates. ... Solar panels are an ideal source of electricity, which is the most versatile form of energy. ... As for automobiles, using solar energy will allow for less carbon dioxide emissions and a cleaner environment. I chose the topic of solar energy because I am supportive of having a more energy conscious environment. Although the solar energy panels are expensive, I feel that in the long run they will save money.... Wordcount: 588 Pages: 2
Advantages of Using Solar Energy in Our Daily Lives
Solar Energy Solar energy is a very useful resource. Today 80% of the energy we use comes from fossil fuels and about 1% comes from solar energy. Fossil fuels are nonrenewable, that means that they are used up faster than they could be replaced. Also fossil fuels limited and cause pollution. They are the primary cause for air pollution that causes acid rain and global warming. The good thing about solar energy is that it is renewable because it is always replaced. Also solar energy does not pol ... Solar Energy Solar energy is a very useful resource. Today 80% of the energy we use comes from fossil fuels and about 1% comes from solar energy. ... Also solar energy does not pollute the enviornment. ... There are many uses of solar energy. ... Solar-powered cars are electric cars that use solar energy through solar cells. ... Wordcount: 1752 Pages: 7
Solar Power Cell Technology
For many years scientists have been searching for new and improved ways to power their instruments. Many solutions have come to them along the way. They have discovered ways to make it by burning fossil fuels or by the force of water currents spinning turbines. But lets face it, their won"t always be fossil fuels to burn forever and there isn"t always a current to create electricity were you need it. That is exactly were solar power would come in. Solar power can reach places were other typ ... Solar power can reach places were other types of energy would never be capable to reach. ... "Solar Energy Converting Apparatus," patent #2,780,765, was issued to Chapin, Fuller, and Pearson, AT&T. 1958: Hoffman Electronics achieved 9% efficient PV cells. ... JPL instituted the Block I procurement by the U.S. government. 1977: The Solar Energy Research Institute (SERI), later to become the National Renewable Energy Laboratory (NREL), opened in Golden, Colorado. ... David Carlson and Christopher Wronski at the 17th Photovoltaic Specialists Conference, "for crucial contributions to the us... Wordcount: 1340 Pages: 5
Simple Applications of Solar Energy
THE SOLAR RESOURCE SIMPLE APPLICATIONS OF SOLAR ENERGY The Sun's rays have long been used as the heat source for evaporating and distilling water. Solar evaporation has always been an important salt-production process. Salt water is pumped into shallow ponds that are open to the Sun. As the water evaporates, its salts form crystals that settle at the bottom and are eventually collected. Producing drinkable water from brine is accomplished in a solar still, where salty water is evaporate ... THE SOLAR RESOURCE SIMPLE APPLICATIONS OF SOLAR ENERGY The Sun's rays have long been used as the heat source for evaporating and distilling water. ... SOLAR ENERGY USE IN BUILDINGS Both water and space heating are among the most successful small-scale applications of solar energy. ... Solar Collectors Solar collectors are devices that absorb solar energy and produce heat. ... Solar energy is a good match for this heating task because it is able to produce heat at temperatures close to those needed for heating buildings. ... SOLAR ENERGY IN INDUSTRY Temperatures sufficiently hi... Wordcount: 1981 Pages: 8
The Utilization of Natural Energy Power Sources
A major transition in the modern energy age began in the 1970s, when the big nation"s industry started to grow up rapidly. The use of oil was very important and overnight, oil prices shot through the roof, and the trend of ever-cheaper, ever-more-plentiful energy sources were in need. Another player on the modern energy stage is nuclear power. An industry that didn't exist 40 years ago is now at a huge amount of production, producing 20 percent of the nation's electricity. Ironically, the in ... Another player on the modern energy stage is nuclear power. ... However Nuclear Energy is the most dangerous one, as we can see what happened in Chernobyl in 1986, and it is dangerous if the nations use Nuclear Energy to kill people like at the end of the world war. It is not a dream to think of solar power that is cheap enough for universal use a world full of zero-polluting electric cars. ... " (Solar) Also, there is continued interest and research into fusion power. ... The most green energy resource is solar energy right now and it is very cheap to get heat from the sunlight.... Wordcount: 422 Pages: 2
The Crystalline Silicon Solar Cell
Solar Cells Solar cells today are mostly made of silicon, one of the most common elements on Earth. The crystalline silicon solar cell was one of the first types to be developed and it is still the most common type in use today. They do not pollute the atmosphere and they leave behind no harmful waste products. Photovoltaic cells work effectively even in cloudy weather and unlike solar heaters, are more efficient at low temperatures. They do their job silently and there are no moving parts to ... Solar Cells Solar cells today are mostly made of silicon, one of the most common elements on Earth. ... In semiconductors, the materials from which solar sells are made, the energy gap Eg is fairly small. ... When light falls on the front surface, photons with energy in excess of the energy gap (1.1 eV in crystalline silicon) interact with valence electrons and lift them to the conduction band. ... Photon energy is inversely proportional to wavelength. ... New York, Academic Press, 1990. pg 334-339 3) Newham, Michael, "Photovoltaics, The Sunrise Industry", Solar Energy, October 1, 198... Wordcount: 1183 Pages: 5
Three Basic Stage of Solar Flare
Solar Storms, Another Obstacle Entering the New Millenium? Storms in space could have a devastating effect on our society. Solar storms are a result of solar flares and are electromagnetic in nature. They are capable of causing power outages and halting all types of communication, including; electronic pagers; radio and television broadcasts; credit card transactions; military communications; etc. Solar flares are cyclical, usually over a period of eleven years. There are three basic stages to a ... Solar storms are a result of solar flares and are electromagnetic in nature. ... There are three basic stages to a solar flare. The first stage is the precursor stage, where the release of magnetic energy is triggered. ... Solar flares are explosions that are believed to be caused by the sudden release of energy that is stored in the solar atmosphere. ... Energy released in this fashion excites atoms of nitrogen and oxygen, which in turn emit pulses of colored light. ... Wordcount: 805 Pages: 3
Alternative Sources of Fossil Fuels
Debate Topic: Fossil Fuels and Alternative Sources Most people in this world but especially in the U.S. think that fossil fuels are never ending. However, they are wrong and completely take them for granted. Therefore, if they do not try to use and find other sources for energy soon then fossil fuels will become extent. So I have taken it upon myself to look into other sources of energy and give my viewpoint about them. I looked into a couple alternative sources. First, technology and manu ... So I have taken it upon myself to look into other sources of energy and give my viewpoint about them. ... First, technology and manufacturing advances have brought the cost of renewable energy use, such as solar and wind, down significantly. ... In the near term, there are niche applications, such as remote photovoltaics and solar swimming pool heating where renewables have a definite cost advantage. ... Over 3,500 MW of wind energy generating capacity have been installed worldwide. ... Life cycle costing comparisons between renewable energy systems and conventional power generation should inc... Wordcount: 314 Pages: 1
The Availability of Geothermal and Renewable Source of Energy
I. Overview of Geothermal Energy Geothermal energy (from the Greek words geo [earth] and therme [heat], thus 'earth heat' energy) is a domestic energy resource with cost, reliability, and environmental advantages over conventional energy sources. Energy from this source comes from the renewable source of heat from deep in the Earth (diagram: A). Heat is brought up to near the surface by thermal conduction (diagram: B) and magma. This heat heats ground water to form hydrothermal resources ( ... Overview of Geothermal Energy Geothermal energy (from the Greek words geo [earth] and therme [heat], thus 'earth heat' energy) is a domestic energy resource with cost, reliability, and environmental advantages over conventional energy sources. ... Utilizing geothermal energy not only contributes to our energy supply, but also reduces energy demand (through the use of geothermal pumps to heat and cool buildings, reducing the need for natural gas and other nonrenewable resources). ... In fact, according to the US Department of Energy, "the resource base for renewable energies- geo... Wordcount: 840 Pages: 3
The Production of Greenhouse Gases Results To Global Warming
The Resolution Because the U.S. leads the world in the production of greenhouse gases (in particular, CO2) that are released into the atmosphere and contribute to the present climate change known as global warming, a plan of action is needed. The continuing sharp rise in the temperature of the air and of the oceans is a phenomenon that is presently causing serious problems world wide. This warming trend may, according to empirical research, lead to catastrophic, unprecedented destruction. S ... So, the way to resolve this most challenging of all global environmental issues, is through the implementation of a very comprehensible and pragmatic four-fold plan of attack: a) begin a massive phase-in of an energy conservation program (insulating houses, teaching people to use less energy); b) launch a major federally-mandated private/public partnership push towards the installation of solar-powered technologies in homes and businesses; c) as new and renewable energy sources come online, and energy conservation reduced the need for additional energy sources, begin the inevitable phase out o... Wordcount: 2600 Pages: 10 Bibliography
Environmental Concerns in Building Nuclear Power Plant
New form of Energy for Capetown Capetown is considered to be the largest city in South Africa, having a population of over 2,727,000 inhabits. The energy form used in Capetown at the moment, is Gas Turbine, wich provides most of the city´s electricity. The use of electricity in Capetown is very low compared to western countries, for example there is only one TV for almost ten people, the energy consumption per inhabit a year is about 4000 kWh, wich is 2550 kWh less than the energy consump ... The energy form used in Capetown at the moment, is Gas Turbine, wich provides most of the city´s electricity. ... If we built other forms of plants we would need: 3 Coal power plants or 12 Hydro power plants or 7 Gas turbine power plants or 173 Solar power plants or 4792 Wind power plants. ... Solar power pant is also a good solution because it does not really pollute the air, but the problem with it is the space that it requires to produce the amount of energy that we need, for example a solar plant wit capacity of 10 MW needs a space of 53x a soccer play ground, and huge amou... Wordcount: 765 Pages: 3
Environmentally Friendly Architecture in 1975
"Home! Home! Sweet, sweet home! There's no place like home," the quote written by Payne shows how dear a home is to a person. Whereas a house is referred to as a place of dwelling, a home is more than that. A home is what a person makes of it; a home is given life by the dweller, making the home part of him or her. A home is more than just shelter or a place to eat and relax, it offers security and comfort to the dweller, it allows the dweller to personalize it, to customize, making it his or he ... Other than that, a few horizontal houses were built to allow more area for solar energy panels. ... A single solar panel is also used to heat water for the house. ... (April 111) This was also the year the Decade 80 Solar House was constructed. ... Everything in the house including the security system is powered by energy collected by the solar panels. ... The ideals were pretty well followed back then, but as the years have gone by, and the energy crisis forgotten, people now have grown away from alternative energy. ... Wordcount: 1164 Pages: 5
Nuclear Power Plant Controversies
Nuclear Plants The question of whether the U.S. should have nuclear power plants is very controversial. There are two sides that one can take; however, both sides have their own share of problems. If you chose to not have nuclear plants, then eventually all natural resources will run out. The oil supply will run out relatively soon, and all other sources will run out too. The natural resources that we have now are still harmful to the earth however. The gas which we use for our cars pollutes ... As we saw in the Chernobyl video, there is great danger when using nuclear energy. ... For example, if the U.S. developed solar power more and made it less costly, as well are more convenient for the average person, then there would be no more problems. In the past century many advances have been made in terms of energy. Power plants became the main source of energy, and towards the end of the century, new advances have been made such as solar power. ... Wordcount: 427 Pages: 2
The World Conservation Strategy
INTRODUCTION A major challenge for mankind is an informed respose to unprecedented urban growth and the intelligent mangement of urban settlements. The 20th century began with perhaps a dozen cities of 1 million resisdents; it will end with several hundred cities of that size, including about 30 urban areas with population exceeding an arbitrary threshold of 8 million. Most of today's cities provide neither equilibrium with the enviornment nor stability for its citizens. Ever since the the c ... Solar energy which has been around for decades is now being seriously considered as possible energy source. ... China, for exmaple has built 12 solar photovoltaic (PV) factories with a capacity totalling 4.5 megawatts. Other renewable sources of energy are wind, tides, and the internal heat of the earth (called geothermal energy). ... ew techonogly and new effeicent systems, the idea of wind energy is resufrcing. ... The benifts of these alternative forms of energy sources are enromous. ... Wordcount: 2051 Pages: 8
Chernobyl The Greatest Nuclear Disaster in 20th Century
Chernobyl Chernobyl was the greatest nuclear disaster of the 20th century. On April 26th, 1986, one of four nuclear reactors located in the Soviet Union melted down and contaminated a vast area of Eastern Europe. The meltdown, a result of human error, lapsed safety precautions, and lack of a containment vessel, was barely contained by dropping sand and releasing huge amounts of deadly radioactive isotopes into the atmosphere. The resulting contamination killed or injured hundreds of thousand ... Once considered a relatively safe form for generating energy, nuclear power has caused more problems than it has solved. ... Everyone wants the energy generated by power plants, but no one wants to take responsibility for the waste. ... Nuclear power plants should be dismantled and replaced with safer energy generating sources. Solar power, wind power, wave power, water power, and conservation should be utilized to replace nuclear power plants and return the world to a society not threatened by radioactive disasters. Governments around the world need to acknowledge that there is no safe source... Wordcount: 447 Pages: 2
The Start of the Contamination in Man's Environment
Environmentalism In The Sixties In the late 1960s to 1970s, Americans realized that industry was doing serious damage to air, water, and the earth itself, the most essential natural resources. The whole awareness of the damage being done to the environment stemmed out from the energy crisis of the 1970s. The energy crisis was a 'slap-in-the-face' for America. They needed to realize the harm that was being done to the natural resources and their decreasing availability as a result. With t ... The whole awareness of the damage being done to the environment stemmed out from the energy crisis of the 1970s. The energy crisis was a 'slap-in-the-face' for America. ... With the decreasing availability and increasing prices of oil, new energy sources had to be discovered. ... Alternative energy sources were possible, and what appeared to be the most effective were tidal energy and solar energy. ... The environmentalists also tried to advocate the conservation of energy, so that the cleaner but less effective ways could be manipulated to produce more energy. ... Wordcount: 578 Pages: 2
The Use of Nuclear Power
Over the past few years, the increase in the use of energy all over the world has increased by incredibly huge amounts. This means, that as the population continues to grow, the increase in energy usage will also continue to grow. So scientist all over the world, are continuously searching for ways to produce the huge amount of energy required by the world. Up until now, a large portion of the energy produced has been from fossil fuel such as oil and gas, that are nonreplaceable and are running ... Nuclear energy actually refers to the energy consumed or produced in changing the composition of the atomic nucleus. ... It is seen by many as the source of inexpensive, clean power; but, because of the hazardous radiation emitted in producing that power and the radioactivity of the materials used, others feel that it may not be a viable energy alternative to the use of fossil fuels or solar energy. ... An important fusion reaction is: 1 H(2) + 1 H(3) = 2 He(4) + 1 neutron + energy where the energy release of the reaction is 18 million eV. Nuclear power plants harness the enormous energ... Wordcount: 1347 Pages: 5
The Different Forms & Layers of the Sun
There are many facts about the sun. The total volume is around 1,300,000 times the earth. The temperature is 10,000 F on the surface and 27,000,000 F in the center. The sun is approximately 4,600,000 years old. The diameter is 865,000 miles about 109 times the diameter of the earth. The rotation period is about every one month. The sun is made up of various types of gases. It is held together by its own gravity. The light that is produced by the sun is due to nuclear burning in its c ... The whole sun itself is located in the center of the Solar System. ... It gives off the suns energy in the form of heat and light. ... The sun has it's own energy. ... The energy thus is transported most of the way to the solar surface by radiation. ... The sun will continue to be a source of energy for another 5 billion years. ... Wordcount: 683 Pages: 3
Nuclear Power Energy Source
Across the world, the demand for electricity is rising, requiring a method be found to satisfy it. Energy conservation techniques will not be sufficient to keep demand down. Another method, building new power plants, will soon need to be implemented. Some of these needed power plants will create pollution which can damage the environment; the only way to minimize the pollution is to choose the right power plant. Conventional power sources, such as coal, are known for the pollution they create. N ... Energy conservation techniques will not be sufficient to keep demand down. ... Newly available sources, like solar power, are currently not feasible to completely supply the new demand. ... The electric mills also use 70% less total energy than coal mills to perform the same task. ... Though there have been almost no accidents and many affirm that "nuclear energy is the cleanest, safest form of energy we have ever had" (Rombough), a lot of people feel that nuclear power plants are unreliable and even dangerous. ... Another result of nuclear energy operation is cesium 137. ... Wordcount: 1123 Pages: 4
Natural Atmospheric Phenomenon of Aurora Borealis
INTRODUCTION One of nature=s most spectacular phenomenons to date is the once mysterious aurora. This dazzling show of lights has been working its magic for people around the world for several years. But, few know the cause of this amazing light display. It is the purpose of this report to reveal this mysteryC a mystery that scientists aspired to solve for nearly 300 years. WHAT IS AN AURORA? An aurora is a luminous atmospheric phenomenon that can be seen most frequently above 60° North ... It was not until the late 1950's that scientists finally discovered the true cause of the aurorasC Solar Wind. Solar Wind Approximately every eleven years, explosions erupt from sun spots creating what are called Solar Flares. ... They also propel Solar Wind, which is a stream of radiation and plasmaC a spray of charged particles. ... When the electrons of a gas molecule are excited, they begin to jump energy levels, releasing energy in the form of light. ... As the aurora comes closer and closer to earth, the air becomes thicker and the excited gas molecules begin to lose their en... Wordcount: 968 Pages: 4
Benefits on Using Wind Mill Electric Source
In 1987, Renner and Renner wrote, "One year after the dramatic collapse of world oil prices, any initial enthusiasm about it has yielded to a more sober assessment of the inter- national energy market. The predicted benefits of the oil price drop have turned out to be grossly overstated: cheap, abundant oil is clearly not the solution to the world economy's deep structural problems. Moreover, oil does not seem likely to remain cheap and abundant. Last year's turmoil is part of a larger boom-bust ... Just as Renner and Renner saw in the 80's, once again we are reminded, every time we fill our gas tanks, that over-reliance on oil for energy is a poor energy plan. ... Its use is expanding faster than any other alternate source for energy. ... Wind energy is what is called a "renewable" energy source, a description not quite accurate. ... Like all energy sources, wind power has some drawbacks. ... Today we have a variety of innovative technologies for producing electricity, including such things as solar energy as well as wind power. ... Wordcount: 972 Pages: 4 Bibliography
Mans discovery of fossil fuels could be his downfall. Discuss
Throughout the entire history of mankind, the technological advancements that civilisations have made have always been tied in with the development of energy sources. The first human energy technology was fire, along with human labour as the major energy source. This has bee supplemented by animals for agriculture and transportation since at least the dawn of agriculture some 10,000 years ago. Wind and waterpower for milling grain have also been used nearly as long. The development of the steam ... The first human energy technology was fire, along with human labour as the major energy source. ... This led to a switch to coal as the major source for fuel and energy. ... Due to the length of time it takes to change from one energy technology to another, it was not until the late 1940"s that oil surpassed coal as the worlds major energy source. ... The consumption of energy in developing countries is rising rapidly, and by the end of the next century will dominate energy markets worldwide. ... This has already started today, with developments in alternative energy sources such as nuclear po... Wordcount: 1634 Pages: 7
Ontario's Nuclear Plants
Ontario"s nuclear power planets are damaging our environment and economic structure; nuclear power should be shut down and replaced with safer methods of power making. Ontario"s nuclear power is not the safe and clean way to produce power, Ontario"s nuclear plants are becoming outdated, nuclear waste is building up, and contamination is becoming more of a threat. Ontario thought that nuclear was clean, safe, and cheap way to produce power. During the 1950s, Ontario Hydro was looking for ... In the 1950s the average person did not have a lot of knowledge about nuclear energy, and nuclear studies were being held. ... The videos would talk about how great nuclear power and how abundant nuclear energy was. ... The real truths about nuclear energy was not as widely known, and the majority of the people thought that nuclear energy was a positive step in the right direction. ... We could invest solar, wind or tide power sources, all of which are safe. ... It is now faced with a situation wherein the demand for energy must be met through the means of an increasingly limited resour... Wordcount: 1159 Pages: 5
Space Transportation Improvements
Technology for dramatic improvements in space launch and orbital transfer safety through improvements in reliability, operability and responsiveness The program is designed to develop advanced technology concepts and methodologies for application by industry, provide the foundation for focused programs to address national needs, respond quickly to critical safety and other issues, and provide facilities and expert consultation for industry during their product development. Space T ... Space Transportation Research Basic fundamental research and proofs-of-concept that lead to revolutionary advances for access to space or enable new interplanetary or interstellar space missions by reducing travel times by two orders of magnitude The primary technical challenges for dramatic improvement in propulsion performance, including advanced propulsion, new on-board energy sources, and off-board resources, are addressed in the Advanced Propulsion Research project. The objective is rapid-transfer interplanetary transportation beyond Mars, and technologies to enable missions beyond ou... Wordcount: 219 Pages: 1