Cotes Wind
/ CRBW

Cotes Wind dehumidifiers are specially configured for installation inside the nacelles and towers of wind turbines – mostly those installed in offshore wind farms, where there are problems with salt-laden moisture.

These units are compact and light in weight, so they are easy to install. They are also remarkably reliable, providing operators with full control of humidity conditions in order to maximise uptime and revenue.


Ideal for use in

  • Onshore wind turbines
  • Offshore wind turbines
  • Wind turbines nacelles and towers during storage
  • Wind turbines nacelles and towers during transport

Scalable and effective

Cotes Wind dehumidifiers are specially designed and configured for effective control of the humidity inside modern wind turbines.

The CR80B model is in widespread use throughout the world, and has sufficient capacity for dehumidification duties in wind turbines of most normal sizes.

The CR240BW and CR400BW models are designed for use in locations with particularly high levels of humidity, and for the new generations of significantly larger wind turbines.

The dehumidifier is automatically turned on and off in order to maintain any designated relative humidity set point, as required to meet the desired conditions.

Optional equipment
Humidity controller and sensors Mounting brackets

More on dehumidification in Wind Turbines

Filtering out the salt

The special design of these units prevents the air filters from becoming blocked by the wet, salt-laden air prevalent in offshore installations.

The filter cassette, which has a particularly large filter area, has an exceptionally long service life, configured to match the service intervals for the wind turbines themselves. The general design is based on the fact that any salt present in air will crystallise if the relative humidity is low enough, and that salt in the form of crystals can then be captured in appropriate types of filter.

This significantly reduces the negative impact of the salt on the dehumidifier itself as well as on the wind turbine tower and nacelle.

Advantages and benefits

Special filters to remove salt crystals from the air    
Less corrosion inside towers and nacelles

Exceptional build quality and reliability    
Long service life and low maintenance/repair costs

High-efficiency washable rotor
Service intervals configured to match existing wind turbine service intervals

Lower service and maintenance costs
Greater uptime

Large filter area  
Long service life and low maintenance/replacement costs

Who to talk to

Thomas Rønnow

CEO

Thomas Rønnow

CEO

T: +45 2294 3318
E: tro(at)cotes.com

Nailing the dehumidification set-up best suited for your company’s exact set-up usually takes more than a simple off-the-shelf purchase.

Talk to one of the Cotes dehumidification experts about how you can get the best possible results from a Cotes Wind dehumidifier.

Nailing the dehumidification set-up best suited for your company’s exact set-up usually takes more than a simple off-the-shelf purchase.

Talk to one of the Cotes dehumidification experts about how you can get the best possible results from a Cotes Wind dehumidifier.