Use of Renewable Energies II


Apr. 29, 2009

Geothermal Power

Geothermal power stations use the warmth of the earth either to boil water or to produce electricity. Geothermal power stations at edges of tectonic plates are more efficient than geothermal power stations established somewhere else. This source of energy neither dependents on the sun nor on the wind, thus it is independent of the weather.

Apr. 29, 2009

Geothermal Power

Fig. 7: Geothermal power plant, Nesjavellir, Iceland.
By Anosmia.
Apr. 29, 2009

Comparison of Sources of Energy

  • Source of energy

    CO2 result (g/kWh) * share of world’s energy usage

  • Oil

    890 * 37%

  • Coal

    790 – 1.230 * 25%

  • Gas

    640 * 23%

  • Nuclear energy

    16 - 23 * 6%

  • Hydroelectricity

    4 - 13 * 3%

  • Wind power

    8 - 16 * 0.3%

  • Photovoltaic energy

    80 - 160 * 0.04%

  • Geothermal power

    n/a * 0.2%

Apr. 30, 2009

Picture Sources for Use of Renewable Energies

  • Fig. 1:

    Photo “nuclear power thriving in England” by courtesy of redjar and Creative common Attribution-Share Alike 2.0 Generic Licence. Link: http://www.flickr.com/photos/redjar/202004826/, accessed 2009-04-27.

  • Fig. 2:

    Photo “Coal Power Plant” by courtesy of davipt and Creative common Attribution-Noncommercial-Share Alike 2.0 Generic Licence. Link: http://www.flickr.com/photos/davipt/164341428/, accessed 2009-04-27.

  • Fig. 3:

    Photo “Power generation at Lake Ohakuri“ courtesy by of EssjayNZ is gonna visit UK! and Creative common Attribution-Noncommercial-Share Alike 2.0 Generic Licence. Link: http://www.flickr.com/photos/essjay/237545321/, accessed 2009-04-27.

  • Fig. 4:

    Photo “Wind turbine near Pattensen, Lower Saxony, Germany.” by courtesy of Moritz Wemheuer.

  • Fig. 5:

    Photo “Photovoltaic Cell“ by courtesy of choctruffle and Creative common Attribution-Noncommercial-Share Alike 2.0 Generic Licence. Link: http://www.flickr.com/photos/choctruffle/2420194545/, accessed 2009-04-27.

  • Fig. 6:

    Photo “Photovoltaic“ by courtesy of Schwarzerkater and Attribution 2.0 Generic Licence. Link: http://www.flickr.com/photos/asterix/151969001/, accessed 2009-04-29.

  • Fig. 7:

    Photo “Nesjavellir“ by courtesy of Anosmia and Creative common Attribution 2.0 Generic Licence. Link: http://www.flickr.com/photos/jenniferboyer/403647198/, accessed 2009-04-27.

Apr. 29, 2009

References for Use of Renewable Energies

  • CO2-Bilanzen verschiedener Energieträger im Vergleich

    Dr. Lübbert, Daniel: CO2-Bilanzen verschiedener Energieträger im Vergleich. Link: http://www.bundestag.de/wissen/analysen/2007/CO2-Bilanzen_verschiedener_Energietraeger_im_Vergleich.pdf, accessed 2009-04-27.

  • Renewables – Global Status Report – 2006 Update

    Martinot, Eric et al.: Renewables – Global Status Report – 2006 Update. Link: http://www.ren21.net/globalstatusreport/download/RE_GSR_2006_Update.pdf, accessed 2009-04-28.

  • Sources of Electricity

    Hurst, Randolph W. et al.: Sources of Electricity. http://www.electricityforum.com/source-electricity.html, accessed 2009-04-29.

  • Hydro Electricity Explained

    Hurst, Randolph W. et al.: Hydro Electricity Explained. Link: http://www.electricityforum.com/hydroelectricity.html, accessed 2009-04-29.

  • Electricity Windmill Explained

    Hurst, Randolph W. et al.: Electricity Windmill Explained. Link: http://www.electricityforum.com/electricity-windmill.html, accessed 2009-04-29.

  • Solar Electricity Explained

    Hurst, Randolph W. et al.: Solar Electricity Explained. Link: http://www.electricityforum.com/solar-electricity.html, accessed 2009-04-29.

  • World energy resources and consumption

    World energy resources and consumption. Wikipedia, The Free Encyclopedia. 20 Apr 2009, 19:01 UTC. http://en.wikipedia.org/wiki/World_energy_resources_and_consumption, accessed 2009-04-27.

  • Hydroelectricity

    Hydroelectricity. Wikipedia, The Free Encyclopedia. 26 Apr 2009, 18:02 UTC. http://en.wikipedia.org/wiki/Hydroelectricity, accessed 2009-04-27.

  • Wind power

    Wind power. Wikipedia, The Free Encyclopedia. 27 April 2009 14:54 UTC http://en.wikipedia.org/wiki/Wind_power, accessed 2009-04-27.

  • Photovoltaics

    Photovoltaics. Wikipedia, The Free Encyclopedia. 26 Apr 2009, 10:42 UTC. http://en.wikipedia.org/wiki/Photovoltaics, accessed 2009-04-27.

  • Solar power

    Solar power. Wikipedia, The Free Encyclopedia. 27 April 2009 14:27 UTC. http://en.wikipedia.org/wiki/Solar_power, accessed 2009-04-27.

  • Geothermal power

    Geothermal power. Wikipedia, The Free Encyclopedia. 18 Apr 2009, 01:52 UTC. http://en.wikipedia.org/wiki/Geothermal_power, accessed 2009-04-27.

Apr. 29, 2009

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