Coolers: a solution to extend the useful life of wind turbine transformers

FuturENERGY April-May 2020

According to statistical data from BWE, the German Wind Energy Association, 29,456 wind turbines were in operation on German soil as at the end of 2019, representing an installed onshore wind power capacity of 53,912 MW. From a theoretical standpoint, this would be the approximate equivalent of more than 41 pressurised water reactors. In fact, Germany’s wind power industry has become a key economic sector which in 2017, according to the latest figures from BWE, and solely taking into account onshore wind, employed a total of 133,000 people throughout the entire value chain of the wind turbine, way beyond its construction and commissioning.

However all this wind power progress in Germany would not have been possible without widespread acceptance, and in case of Germany, this acceptance has gone far beyond with community wind power projects, which have played a key role in its implementation. Community energy has been a cornerstone of Germany’s energy transition, according to data from the WWEA, the World Wind Energy Association. In 2019, 42% of all German renewables were owned by residents and farmers.

By Eberhard Maier, Técnico ingeniero de ventas, KTR Systems