WindGuard and Wind Energy

In just a few years, the wind energy of a grassroots movement of individual inventors and idealists has become a global industry, whose contribution to global energy demand continues to grow. WindGuard has helped shape this process from the start.

The way to secure energy supplies exclusively from renewable sources raises many technical, operational, and policy issues. WindGuard will continue to provide answers to these questions with their extensive expertise.

Wind is – besides the sun – the only energy source for which one can predict today, what the price will be for the next few years, decades, centuries: it costs nothing.

This superiority will justify all the effort to use it safer and more cost effectively. Now, and into the future.

Dr. Knud Rehfeldt, Director German Deutsche WindGuard


The share of wind energy in the German electricity supply is approximately 10 percent (renewables together: around 25 percent). Germany has some 25,000 wind turbines, which together provide about 50 TWh.


The third Renewable Energies Act amendment includes a revision in tariffs.


After the nuclear disaster in Fukushima, the German government decides to allow accelerated connection to the grid for offshore wind turbines.


With the "Energy Concept” the program "Offshore Wind Energy" is also adopted. It provides, among other things, credit support for offshore wind farm operators by the Kreditanstalt für Wiederaufbau (KfW). "Alpha Ventus" becomes the first German offshore wind farm in operation.

Founding of Deutsche WindGuard Offshore GmbH.


Second Renewable Energies Act amendment: Among other things, addition to the law for the promotion of renewable energies in the heating sector.


Wind Guard opens the Acoustically Optimised Large Wind Tunnel in Bremerhaven.


First Renewable Energies Act amendment clarifies the expansion targets for renewable energy.


WindGuard brings the Wind Tunnel Centre into operation.


The federal government published a strategy paper on the use of wind energy at sea. This paper provides planning security for further research into the technical and economic issues.

For the first time, the cumulative installed capacity of wind turbines in Germany exceeds 10,000 MW annually. By 2006, there are already over 20,000 MW.


The Renewable Energies Act (EEG), advised by experts of Deutsche WindGuard, strengthened the development of wind turbines in Germany. At end of 2003, about two-thirds of all wind turbines in Europe are located in Germany. The EEG is a model for similar schemes in over 65 countries.

The number of wind turbines installed in Germany exceeds the 10,000 mark.

Founding of Deutsche WindGuard.


An amendment to the Building Code gave wind turbines privileged status in the so-called “non-urban areas”, thus more locations for wind turbines became available.


The German Electricity Feed Act leads to a recovery of wind energy in Germany. Three men who were later to become CEOs at WindGuard, Axel Albers, Gerhard Gerdes, and Knud Rehfeldt – previously involved in the science of wind energy – developed the initial concepts for the technical operation of wind turbines. 


The first German wind farm is established, the Wind Farm West Coast (Windenergiepark Westküste), at that time the largest wind farm in Europe. 1991: Connection to the power grid.


The trial turbine "Growian" is built (large-scale wind turbine).


After the oil crisis, the number of wind turbines installed for power generation increased. In the United States, particularly in California, wind turbines were encouraged with tax credits. In the Federal Republic of Germany, 86 percent of electricity was generated by fossil fuels (especially petroleum, coal, lignite).