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GFS Englisch. Luisa Johnen G1-1 04.05.10. Renewable Energy. Structure. Generally information Development Solar collector Photovoltaic Hydropower Advantages and disadvantages Potential. Generally information. What is it ? - alternative to fossil fuels
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GFS Englisch Luisa Johnen G1-1 04.05.10
Structure • Generally information • Development • Solar collector • Photovoltaic • Hydropower • Advantages and disadvantages • Potential
Generally information Whatis it? - alternative to fossil fuels - rebuild themselves or are indefinitely available Why? - protect the environment - reduces the production of greenhouse gases - do something against the climate change - fossil fuels are limited other source of energy How? - solar energy, geothermal energy, wind power or hydropower
Solar collector • Change of solar radiation to heat • 1.500.000 solar energyplants in Germany • Idea originates from a hosepipe
Tube Glass Vacuum Absorber Isolation Solar radiation Glass Heat radiation Isolation Cold water Absorber Tube Warm water
Solar collector Solar radiation Collector Cooling water Drinking water Cistern Cold water
Photovoltaic • 600.000 households in Germany • produces electrical energy
Photovoltaic Photovoltaic cell Public network inverter
Hydropower • 8000 hydropower plants in Germany • biggest plant of Germany in Thüringen • biggest plant of the world is the Three Gorges Dam in China
Hydropower Water Dam Generator Turbine
Advantages and disadvantages Solar energy
Advantages and disadvantages Hydropower
Potential • half an hour: more energy than the world need in one year • survey of 2008: 30% in 2020 50% in 2030
Sources • http://en.wikipedia.org/wiki/Renewable_energy • http://www.soolux.com/uploads/tx_sftextbox/Erneuerbare-Energien-am-Gesamtverbrauch-98-07.JPG • http://www.waermewechsel.de/fileadmin/content/Wissen-Daten/Erneuerbar_Heizen/Anteile_Waermeverbrauch_2008.jpg • http://de.wikipedia.org/wiki/Sonnenenergie • http://de.wikipedia.org/wiki/Wasserkraft • http://de.wikipedia.org/wiki/Sonnenkollektor • http://www.solarbusiness.de/fakten/sonnenenergie-die-populaere/alle-setzen-auf-die-sonne/ • http://www.erneuerbare-energien.de/inhalt/42386/5466/