From Klima Nachrichten

 By Klima Nachrichten Editor

When a Fraunhofer scientist says that, and one who is very much in favor of wind power, it gets tricky.

The German North Sea is heavily built up with wind turbines and there are still more to come.

However, they are now taking the wind away from each other.

It came out when an auction of a wind farm field had no bidders.

Welt (paid item)

Lukas Vollmer chooses his words carefully. He knows it could be tricky in view of what he will say in the next moment. Vollmer, with a dark beard and a calm voice, is a physicist at the Fraunhofer Institute for Wind Energy Systems in Bremen. For twelve years, he has been calculating how much energy individual wind turbines on the North Sea supply, and how much large accumulations of it. Vollmer is certainly not an opponent of wind turbines, he believes in the power of the colossi.

But he admits something that other experts in his industry now also realize: “There will be many wind turbines on the German North Sea that will take energy away from each other.” The turbines stand in each other’s way. And increasingly often. Germany, as he can be understood, is overdoing it with wind power.

Professor Ganteför had pointed out very early on that wind is not an infinite resource. He was massively attacked for his video.
The long wind trails behind wind farms with satellites can be seen.

The topic is by no means new, and it also affects other riparian states of the North Sea, as we reported in June 2025.

The facts: The Dutch accuse the Belgians of taking the wind away from them with their offshore wind farms near the Dutch coast. The company’s own turbines therefore have less wind for optimal performance. Why this is important: Wind turbines take energy from the atmosphere. This is why the wind speed behind such turbines is often reduced over many kilometers. Because a large number of wind turbines are planned in the North Sea in particular, slipstream effects between individual wind farms will probably still give rise to a lot of talk in the future.

Sweden, one would think, has plenty of coastline off which wind turbines can be erected. In addition, Sweden’s landmass is large and there are only 10 million inhabitants there.
The country is 1.26 times the size of Germany.

In Sweden, there is only 1/10 of the population per square kilometer as in Germany. So, there is plenty of space.

Nevertheless, wind turbines have economic problems there, although they are probably much easier to erect than in Germany.

MSN:

In Sweden, the economic situation for wind power companies has deteriorated dramatically. A growing number of projects are insolvent – driven by low electricity exchange prices, technical problems and new market mechanisms that significantly increase operational risks.

Several insolvencies in the summer point to structural weaknesses in the business model of the wind energy industry.