renewable energy alternatives.txt

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renewable energy alternatives.txt
2012-04-13 17:37:24
Renewable energy alternatives

renewable energy alternatives
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  1. alternative energy resources
    renewable energy resources
  2. biomass
    material that makes up living organisms or comes from organisms
  3. biomass energy
    energy that is produced from material that makes up living organisms or comes from organisms
  4. biofuels
    liquid fuels from biomass sources
  5. ethanol
    produced by the fermentation of starches or sugars; used in gasoline engines
  6. biodiesel
    produced from vegetable oil, such as soybean oil
  7. biopower
    electricity that is generated by the combustion of biomass
  8. geothermal energy
    • heat produced by high pressure combined with the breakdown of radioactive elements; deep beneath the surface of Earth
    • heats rocks below Earth's surface
  9. ground source heat pump
    a system that takes advantage of the fact that the temperature of soil a few feet underground stays about the same all year, even though the air temperature changes
  10. hydropower
    hydroelectric power; the use of the kinetic energy of moving water to turn turbines and generate electricity
  11. tidal energy
    refers to using the movement of tidal water to generate electricity
  12. ocean thermal energy conversion (OTEC)
    process that converts the thermal energy in ocean water to electrical energy that people can use
  13. passive solar heating
    involves designing a building to collect, store, and distribute the sun's energy naturally
  14. active solar heating
    uses technology to collect, move, and store heat derived from the sun
  15. flat-plate solar collector
    consists of a black, heat-absorbing metal plate in a flat box w/ a glass cover
  16. photovoltaic (PV) cell
    solar energy is converted directly into electricity
  17. concentrating solar power (CSP)
    technology that uses mirrors to focus sunlight in order to generate electricity
  18. wind turbine
    a device that converts the wind's kinetic energy, or energy of mition, into electrical energy
  19. wind farms
    wind turbines built in groups
  20. electrolysis
    process in which water molecules are boken down into oxygen gas and hydrogen gas by an electric current that runs through the water
  21. fuel cells
    used to generate electricity by using hydrogen gas