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German Presentation About Energy
German Presentation About Energy
German Presentation About Energy
German Presentation About Energy
German Presentation About Energy
German Presentation About Energy
German Presentation About Energy
German Presentation About Energy
German Presentation About Energy
German Presentation About Energy
German Presentation About Energy
German Presentation About Energy
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German Presentation About Energy

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  • 1. Possibilities for alternative Energy in Germany Edgar Ullrich Tuma, Julia-Marie Krüger, Riko Korzetz, Laura Malik, Christian Eichmann
  • 2. Content: <ul><li>Solar energy and Photovoltaic </li></ul><ul><li>Hydropower </li></ul><ul><li>Wind power </li></ul><ul><li>Biomass </li></ul><ul><li>Geothermal Power </li></ul>
  • 3. Solar Energy and Photovoltaik <ul><li>Solar collectors = alternative for solar cells </li></ul><ul><li>Good in Germany: electricity is cheap </li></ul><ul><li>Advantages: </li></ul><ul><li>can be used to heat water -> efficience factor 70% </li></ul><ul><li>„ long lifes“; about 40 years </li></ul><ul><li>pays off (energy, money) </li></ul><ul><li>in winter -> nearly all heating by collectors </li></ul>Solar Collectors
  • 4. <ul><li>Photovoltaic = direct transformation of solar energy to electricity </li></ul><ul><li>Photovoltaic = part of solar engineering </li></ul><ul><li>Name: Photos + Volta (Alessandro Volta) </li></ul><ul><li>Based on photoelectric effect (by Alexandre Edmond Becquerel ) </li></ul><ul><li>Photovoltaic = not really effective in Germany (to less insolation, no sun at night) </li></ul>Photovoltaic
  • 5. Hydropower <ul><li>Kinetic energy of water transformed to electric energy </li></ul><ul><li>In former times –> water wheels and mills </li></ul><ul><li>Supplies 19% of world energy </li></ul><ul><li>Ocean current power stations; tidal power stations; wave power stations </li></ul>General informations
  • 6. <ul><li>Pro: </li></ul><ul><li>No emmisions </li></ul><ul><li>Limited ressources aren´t needed </li></ul><ul><li>Effective </li></ul><ul><li>Possibilities of saving energy for some time </li></ul><ul><li>Cons: </li></ul><ul><li>Requires flooding </li></ul><ul><li>Expensive </li></ul><ul><li>Fishing close to the station is difficult </li></ul><ul><li>Dam failures! </li></ul>Hydropower in Germany
  • 7. Wind Power <ul><li>Former times: wind used by windmills, sailing ships </li></ul><ul><li>Now: wind power stations </li></ul><ul><li>Feeds 6.4 % of energy demand in Germany (2007) </li></ul><ul><li>Especially used in: </li></ul><ul><li>-> USA (25,170 MW) </li></ul><ul><li>-> Germany (23,903 MW) </li></ul><ul><li>-> Spain (16,754 MW) </li></ul><ul><li>Growing Utilisation (look right) </li></ul><ul><li>A lot of research is done </li></ul>General informations
  • 8. <ul><li>= Expensive -> promotion by state </li></ul><ul><li>Mainly in the north (less mountains, less citys) </li></ul><ul><li>Mecklenburg Prepommerania: </li></ul><ul><li>A lot of wind power </li></ul><ul><li>Less people (-> not disturbed) </li></ul><ul><li>„ Offshore“ installations in the baltic sea are build </li></ul>Wind Power in Germany
  • 9. Biomass <ul><li>Biomass =renewable energy source </li></ul><ul><li>Living organisms (wood, waste, and alcohol fuels ) </li></ul><ul><li>Use miscanthus, switchgrass, hemp, corn, poplar, willow, sorghum, sugarcane </li></ul><ul><li>CO2-neutral </li></ul><ul><li>Usefull, because leftover food can be used </li></ul>General informations
  • 10. <ul><li>Pro: </li></ul><ul><li>You can use every kind of biological things, e.g. leftover food, wood, corn,… </li></ul><ul><li>Biomass is not limited </li></ul><ul><li>Cons: </li></ul><ul><li>Fewer food (and etc.) </li></ul><ul><li>Food -> more expensive </li></ul><ul><li>Burning -> emissions </li></ul>
  • 11. Geothermal Power <ul><li>power extracted from heat stored in the earth </li></ul><ul><li>was used for heating baths and rooms in ancient Roman times </li></ul><ul><li>can now be used for generating electricity </li></ul><ul><li>generate now 0,3 % of global electrictiy demand </li></ul>General Informations
  • 12. <ul><li>Pro: </li></ul><ul><li>pumps = long life </li></ul><ul><li>no emissions </li></ul><ul><li>little space needed </li></ul><ul><li>less costs for electricity and gas </li></ul><ul><li>Against: </li></ul><ul><li>investment costs = about 10,000 € </li></ul><ul><li>complex installing </li></ul><ul><li>just effective for insulated houses </li></ul><ul><li>big garden is needed </li></ul>Geothermal Power in Germany

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