solar energy. energy sources of the earth pros about solar energy we use that kind of energy...
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Solar Energy
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Energy Sources Of The Earth
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Pros about solar energy
We use that kind of energy because it will never end
It‘s environmental friendly 1 kWh of solar energy saves 500 grams of
CO2 emission Independent from fossil and atomic energy
sources The solar cell industry creates a lot of jobs
and is therefore good for the economy It saves money for the gas and fuel import.
That‘s nearly 400 Million € in the EU-Countries 2010/11
Pros about solar energy
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Cons about solar energy
The intensity of sun radiation depends on the changing seasons, weather etc.
Sometimes you don’t need the energy when the sun shines
The solar cells can‘t save the surplus energy
You need much energies and raw materials to produce solar panels
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The efficiency of solar energy
If there would be an area in the Sahara of 700 x 700 km filled with solar panels at an efficiency level of only 10%, we could cover the current total world energy demand.
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The efficiency of solar energy in Europe
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Concentration of alternative energies
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Private solar panels on roofs
Many private houses in Germany have solar energy panels on the roof.The federal state subsidises the solar panels financially.The base funding for a solar water heating system is 60 € per square meter of collector area, at least 410 € for the facility.
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Solar energy worldwideWorld market photovoltaic 2008
new installed power in MWh
2511
1500
342
274
258
230385
Spain
Germany
USA
South Korea
Italy
Japan
Rest
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38%
16%16%
30%
0%
Windenergie
Photovoltaic
Waterpower
Biomass
Geothermie
Structure of renewable energies in Germany 2011
Total production 129,1 TWh, which is 20% of the consumption in Germany
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Solar thermal energy produced in Germany in GWh
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„Solarbunker“ in Gelsenkirchen
In the past the Solarbunker was a coal storage.Today it produces 355 KWh energy.
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