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 Photo Gallery: Renewable Energies are Beautiful
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Parabolic trough collectors concentrate the sun light on an absorber tube.
Temperatures of 400°C are reached there.
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Two-axis tracked parabolic trough collectors concentrate the sun light for chemical processes.
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Parabolic trough collectors are optimal for regions with high sunshine hours.
In Spain, North Africa and the USA many new systems are under construction.
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Solar cells can be combined to any desired size. This 5 MW system generates electricity for more than thousand households.
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Good solar radiation conditions exist in the South of Germany.
Big unshaded roofs of farm houses are perfect for the installation of photovoltaic systems.
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Wind power plants fit perfectly in many landscapes.
During sunset wind power plants can give picturesque views.
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Solar thermal systems could not only provide good services in the sunny South. This shows one example of Denmark.
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The sunflower is a symbol for green energy.
It could also be used for the production of biofules.
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When rape fields blossom they are a feast for the eyes. Rape is the raw material for biodiesel.
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Wood Pellets are the optimal biofuel for automatic heating systems. Pellets consist of pressed sawdust.
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All photos © by Volker Quaschning.
Please consider the terms of use.
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