Wind subsupplier means to clean up industry's dirty secret
![Within this majestic machine are many hundreds of liters of oil. Hydratech intends to keep the substance clean. | Photo: WindEurope](https://photos.watchmedier.dk/watchmedier/resize:fill:3840:0:0/plain/https://photos.watchmedier.dk/Images/article12923169.ece/ALTERNATES/schema-16_9/doc7fguzw0jvqwynv9wimx.jpg)
That wind turbines often contain many hundreds of liters of oil isn't a fact that many talk about. In part because this aspect doesn't exactly emanate green signal value, though it plays a quite modest role in practice. And partly because it's just boring; not least of all when the oil, used to lubricate hydraulic components and transmission, becomes so dirty that it needs changing, with everything that entails of work hours and downtime.
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