News
17/12/2025

Iberdrola Group using innovative solutions manufactured in Seville to protect its German offshore wind farm Windanker

  • The company uses Seville-based RTS coatings to ensure the resilience of the farm's 21 transition pieces under the harsh conditions in the Baltic Sea
  • These transition pieces, produced in Avilés by another Spanish company, Windar, connect the foundations to the wind turbine towers 
  • Windanker, which will have a capacity of 315 MW, is expected to come into operation at the end of 2026
  • Iberdrola Group is present in RTS through its international PERSEO programme, dedicated to open innovation and supporting entrepreneurial projects with high potential for impact and growth
Panoramic view of the ocean with several wind turbines in the background. In the foreground, a person (partially seen from the back) wearing a yellow life jacket is looking towards the sea and turbines. In the center, there is a floating structure with a boat near it.

Windanker, Iberdrola Group's offshore wind farm in Germany

Iberdrola Group, of which Iberdrola España is a part, has chosen the innovative solution from the Seville-based company Revestimientos Técnicos Sostenibles (RTS) to protect the 21 transition pieces at its Windanker offshore wind farm, currently under construction in German waters in the Baltic Sea. 


These structures, which are placed between the foundation and the wind turbine tower, have already been coated with a compound made from natural cork and designed specifically to withstand the demanding conditions of the marine environment. The transition pieces were manufactured in Avilés by another Spanish company, Windar.


Iberdrola Group has a stake in RTS through its international open innovation programme PERSEO, which seeks to find entrepreneurial solutions related to the energy transition. Based in Utrera, Seville, with the company, RTS has developed products for the energy refurbishment of buildings and offers solutions to protect wind structures in marine environments, including both wind turbines and substations.


Read out more about the innovative solutions manufactured by the Seville-based company on Iberdrola Group's global corporate website.

You may also be interested in offshore wind energy:

Panoramic view of the ocean with several wind turbines in the background. In the foreground, a person (partially seen from the back) wearing a yellow life jacket is looking towards the sea and turbines. In the center, there is a floating structure with a boat near it.
Image of an offshore wind farm with turbines generating energy at sea
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