Riffgat (also known as Borkum Riffgat and OWP Riffgat) is an offshore wind farm 15 kilometres (9.3 mi) to the north-west of the German island of Borkum and north of the eponymous shipping channel in the southern North Sea.

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The wind turbines are built across an area of 6 square kilometres (2.3 sq mi). It consists of 30 turbines with a total capacity of 113 megawatt (MW), and is expected to generate enough electricity for 112,000 households.