The DanTysk OAP boasts most of the amenities you’d expect from a brand new hotel. Its 50 rooms are equipped with flat-screen televisions, desks and en-suite showers. There’s a gym, games room and library, free Wi-Fi and a restaurant serving freshly cooked meals three times a day.

The thing that really sets it apart, though? “The view,” says Robert Neumann, one of the first to stay here. The hotel stands in the middle of the North Sea.

The nearest land, the German island of Sylt, is more than 40 miles away. Look East, and there’s an uninterrupted expanse of water as far as the eye can see. To the North, South and West stand the 80 wind turbines of Vattenfall’s DanTysk offshore wind farm – the reason the Swedish state-owned energy giant has just spent €100m (£86m) building this, its first offshore accommodation platform.