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Traditionelle Sonnenkollektoren
These rigid solar panels are polycrystalline, monocrystalline or amorphous, they are usually placed on roofs.
Amorphous panels have a much smaller area efficiency but produce more on a cloudy day. Polycrystalline photovoltaic panels have a minor area efficiency but have an incomparable ratio power/price. Monocrystalline photovoltaic panels have black cells which give them an aesthetic advantage besides having the highest efficiency.
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