Humidity causes issues in wind turbines

Keeping relative humidity under 60% in wind turbines

Cotes helps companies like Vestas, GE, SGRE, ScottishPower, Ørsted, RWE, Deutsche Windtechnik, Shanghai Electric, Equinor and many more keep the RH inside their wind turbines under 60%.

  • Deutsche Windtechnik improves the operation and pre-heating process of onshore and offshore wind turbines that have been off-grid for more than 48hrs by using a Cotes adsorption dehumidifier.
  • Extending the Nysted Offshore Wind Farm operational lifespan to over 30 years using Cotes dehumidifiers.
  • A recent independent study by Fraunhofer confirms what Cotes' engineers have known for a long time, that there is a direct correlation between humidity and the technical faults that occur in wind turbines.
  • A conversation with Stiesdal COO, Peder Nickelsen, on the issues facing the wind industry today and the benefits of a sustainable dry-air strategy for operating and maintaining wind turbines - onshore, nearshore, and offshore.
  • A report on humidity conditions in offshore wind farms with a specific look at the Akita and Noshiro wind farms which are part of an offshore wind farm project off the coast of Japan currently in development.


NOTE: If you are a developer you should have a clause in your RfP and owners requirements stating a mandatory 60%RH limit inside the wind turbine.

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Let's help you keep your humidity under control...

...tell us about the issue you see in your wind turbines and we will make a recommendation on how you can stabilise you RH under 60% 🤓