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GFS GFS ENGLISCHENGLISCH
Luisa Johnen G1-104.05.10
RenewableRenewable EnergyEnergy
Generally informationDevelopmentSolar collectorPhotovoltaicHydropowerAdvantages and disadvantagesPotential
StructureStructure
What is 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
Generally information
Development
Change of solar radiation to heat1.500.000 solar energy plants in
Germany Idea originates from a hosepipe
Solar collector
Solar radiation
Glass
Cold water
Warm waterTube
Isolation
Absorber
Heat radiation
Tube
GlassVacuum
Absorber
Isolation
Drinking water
Cold water
Collector
Solar radiation
Cistern
Cooling water
Solar collector
Differences Photovoltaic and Solar collectors
Photovoltaic Solar collector- electric energy- efficiency: 14-18%- life span: 30 years
- heath- efficiency: 75- 85% - life span: 40 years
600.000 households in Germany
produces electrical energy
Photovoltaic
Photovoltaic
Photovoltaic cell
inverter
Public network
• 8000 hydropower plants in Germany• biggest plant of Germany in Thüringen• biggest plant of the world is the Three Gorges
Dam in China
Hydropower
Dam
Generator
Turbine
Water
Hydropower
- simple and fast construction- indefinitely and worldwide available-produces no greenhouse gases during operation
- high costs- solar radiation sticks to weather, time of the day and season no constant energy supply possible
Solar energy
Advantages and disadvantages
- no greenhouse gases- simple construction - hydropower plants durable- high efficiency
- loss of important living space in the water - impairment of nature and landscape - fish die because of the turbines
Advantages and disadvantages
Hydropower
Potential
http://en.wikipedia.org/wiki/Renewable_energy http://www.soolux.com/uploads/tx_sftextbox/Erneuerbare-Energie
n-am-Gesamtverbrauch-98-07.JPG http://www.waermewechsel.de/fileadmin/content/Wissen-Daten/E
rneuerbar_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/
Sources
Thank you for
listening!!
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