Alternative Energy Sources - Essay

Good Essays
What does a car, heater, and stove have in common? They are all powered by fuel sources. The most popular being fossil fuels. Fossil fuels are dead plant and animal matter that has been compressed and heated over millions of years. They are burned to create heat, which in turn creates energy. However, with heavy industrialization (agricultural and manufacturing), transportation, and personal energy use, our world’s fossil fuel supplies are rapidly depleting. Even more, fossil fuels pollute our environment. Scientists are on the search for alternative energy sources so the world can be weaned of its fossil fuel supply. Out of the many alternative fuel sources, I will be focusing on solar and wind power. Solar power is simply the conversion of energy from the sun into usable energy. Solar energy can be harvested in two ways: indirectly by using the heat of the sun and directly by utilizing its energy to turn it into electricity. What makes solar power so popular is the fact that it can be used anywhere that has sunlight. Solar power can be collected in 3 different ways: solar heat collectors, solar thermal concentrating systems, and photovoltaics. Solar heat collectors are collectors that are designed to absorb the heat from the sun. The most common ones are flat plate collectors that have a dark absorber plate that is covered with a transparent plate (usually glass). In between the two plates are pipes that are filled with heat-transferring liquid like antifreeze. When sunlight strikes the absorber plate in the collector, the heat is absorbed into the liquid, which is then passed through pipes to the water heater. When the liquid is finished being used, it flows back up to the plate where it is heated again and repeats the process. Solar thermal concentrating systems use mirrors and lenses to concentrate the energy of the sun into a small area to produce energy. The energy heats up molten salt in pipes that run along the concentrating system which is the power

You May Also Find These Documents Helpful

  • Better Essays

    ESSAY ON ALTERNATIVE SOURCES OF ENERGY The law of conservation says that energy is neither created nor destroyed. When we use energy, it doesn’t disappear. We change it from one form of energy into another. A car engine burns gasoline, converting the chemical energy in gasoline into mechanical energy. Solar cells change radiant energy into electrical energy. Energy changes form, but the total amount of energy in the universe stays the same. Scientists at the Department of Energy think they have…

    • 1932 Words
    • 8 Pages
    Better Essays
  • Good Essays

    In present day people all around the world have used many energy sources. For instance, cars have to use much fossil fuel energy. Coal and natural gas also have been used too much to heat homes and businesses even during the winter (Adapted from Rosenthal, E. , 2010, December 11). As this information, ‘finding alternative energy sources is one of the major projects of this century in all countries because the world is running out of the natural resources’ (Edited extracts from authentic student…

    • 712 Words
    • 3 Pages
    Good Essays
  • Good Essays

    “Alternative sources of Energy" In the not-too-distant future -- with regard to history's time-line -- there will come a point when oil that is fossil fuels will have been depleted. However, waiting until supplies are exhausted would place a major hardship upon future energy demands. Even the existence of other conventional sources such as hydropower, wind energy and biomass will not suffice keeping in mind the rapid advancement. It is therefore imperative to look for alternative sources of energy…

    • 731 Words
    • 3 Pages
    Good Essays
  • Best Essays

    Alternative Energy Sources

    • 1761 Words
    • 8 Pages

    Alternative Energy Sources Fossil fuels will not last forever. If the human race wishes to continue to live the way we do, then we have to look at alternative energy sources such as: geothermal, nuclear, solar, wind, and hydroelectric energy. Alternative energy sources are not without faults, but along with faults, there are benefits and solutions to the issues. Geothermal energy is a well-proven energy resource that can be used to provide both heat and electricity. Geothermal energy is very…

    • 1761 Words
    • 8 Pages
    Best Essays
  • Good Essays

    AN ALTERNATIVE ENERGY SOURCE Technology in this day become more advanced. The advancement of technology has improved the quality of our life. The invantion of electricity made people found new era. Electricity is a source of energy. There are various function of electricity such as lightening, to light up the world, connecting us from distance, spreading out news, entertaining, and for medical purpose. Electricity is produced by a battery or a wires or by dinamo machine. But there are some alternative…

    • 288 Words
    • 2 Pages
    Good Essays
  • Good Essays

    2012 Alternative Energy Sources In the world today, alternative energy sources are becoming more and more of a necessity. Right now, the world’s energy demand is greatly increasing mostly because of population growth. Even though the rate of population growth is very diverse in different countries, the world’s population doubles about every thirty years. The world energy use is doubling every fourteen years (Hodgson). Still, the main energy source is oil. The other primary source of energy is coal…

    • 1325 Words
    • 6 Pages
    Good Essays
  • Good Essays

    Alternative Energy Sources [pic] Alternative energy is no longer a secret. Most of the world’s energy needs are fulfilled by fossil fuels including gasoline and coal. It cannot be denied, however, that their supply is no longer in a stable state, their prices have gone up and they have been found to cause damage to the environment. The negative effects of the use of fossil fuels are taking its toll on Mother Earth and mankind. Pollution mainly from the burning of fuels has long been pointed…

    • 659 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Alternative Energy: The Source of the Future Danielle Hansen ENG 122 English Composition II Instructor: Jessica Ruddick October 4, 2010 This topic of this research paper is to discuss why we need to switch to alternative energy sources. Alternative energy sources are readily available, environmentally friendly, and cost effective. Unlike fossil fuels, there is an unlimited amount of resources, and a lot less pollution. Energy demands of our population are steadily rising…

    • 1770 Words
    • 8 Pages
    Powerful Essays
  • Satisfactory Essays

    7.4 ch 19 VOCAB: Renewable alternative energies sources- such as solar water and biomass that are more or less continuously made available in a tim from work useful to people nonrenewable alternative energies- energy sources including nuclear and geothermal that are dependent on fuels or a resource that may be used up much faster than it is replenished by natural processes bio fuel- an energy recovered from biomass- organic matter such as plant material - animal waste digestion- poop (waste…

    • 482 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    early, for years now. And the fact that we're still dealing with lead-acid batteries is sort of a baffling thing to wrap one's mind around. But all of that just might be changing. We won't get our hopes too high until fuel cells become the viable alternative that we have been told that they are, but we strangely have more faith in a vegetable than a science lab to revolutionize the battery. A vegetable? Yes, indeed. Yissum Research Development Company Ltd., the technology transfer arm of the Hebrew…

    • 1129 Words
    • 5 Pages
    Good Essays