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This sunset image was taken on the north bank of the Western Scheldt river (Zeeland, The Netherlands) where it flows into the North Sea.
On the right side of the image, one can see a navigation light. The electric power is provided with a battery, charged with two somewhat angled solar panels. On top of the solar panels a kind of metal brush is attached to prevent that the seagulls can't 'produce' their droppings there. Without these provisions the solar panels would be ineffective within a short period of time.
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