News
17/12/2025

Iberdrola Group applies innovative solutions manufactured in Seville to protect Its german offshore wind farm Windanker

  • The company uses coatings from Seville-based RTS to ensure the durability of the 21 transition pieces of the wind farm against the harsh Baltic conditions
  • These transition pieces, produced in Avilés by another Spanish company, Windar, connect the foundations with the towers of the wind turbines
  • Windanker, with a capacity of 315 MW, is expected to start operation by the end of 2026
  • Iberdrola Group is involved with RTS through its international program PERSEO, 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

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

 

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

 

RTS is a company in which Iberdrola Group holds a stake through its international open innovation program, PERSEO, which seeks to promote entrepreneurial solutions related to the energy transition. Based in Utrera (Seville), RTS has evolved alongside the company, moving from products for energy rehabilitation in buildings to offering solutions to protect wind structures in marine environments, including wind turbines and substations.

 

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

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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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