Pellworm (Danish: Pelvorm; North Frisian Pälweerm) is one of the North Frisian Islands on the North Sea coast of Germany. It is part of the Nordfriesland district in the federal state of Schleswig-Holstein. Its area is 37 km², and its population is roughly 1,200.
In medieval times Pellworm was a part of the larger island of Strand which was torn into pieces in a disastrous storm tide in 1634. Other remnants of Strand are Nordstrand and the Halligen. All these belonged to the historical region of Uthlande.
Pellworm is accessible by a ferry departing from the neighbouring peninsula of Nordstrand (which is in turn connected with the mainland by a road causeway).
One of the largest hybrid renewable energy plants in Europe is to be found on Pellworm. It combines photovoltaic and wind energy to provide over 700 MWh/year of electricity.
Together with several smaller islands, Pellworm forms the Amt Pellworm.
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