Wind farms are expanding around the world. This is good for climate change. Wind turbines are being installed on the high seas with nacelle heights of more than 100 meters and rotor diameters of nearly 170 meters. This increases both the electricity yield and economic efficiency. Freudenberg is aiding wind power’s conquest with high performance components and materials.
For German speakers, the name may have a military overtone, but it is in fact a designation for a reef in the Baltic Sea lying beneath the ocean’s surface. Here, in the middle of the ocean between Germany, Denmark and Sweden, “Kriegers Flak” wind farm is rising from the sea to an area of over 132 square kilometers. At dizzying heights of more than 100 meters, massive towers are being erected bearing nacelles and 80-meter blades, giving the wind turbines a total height of almost 200 meters. By comparison, Cologne Cathedral is only 157 meters high. The latest generation of 72 turbines being built at Kriegers Flak are among the most powerful in the world; each individual turbine can generate up to eight megawatts of electricity. And with good reason. The more powerful turbines require smaller foundations, fewer towers and fewer cables relative to the energy yield – and can thus be run more efficiently. More and more turbines can now operate without government support. Wind power is thus being established as an independent, climate friendly energy form.