- The company uses coatings from Seville-based RTS to ensure the resistance of the farm's 21 transition pieces against the harsh conditions of 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 is present in RTS through its international PERSEO programme, dedicated to open innovation and supporting entrepreneurial projects with high potential for impact and growth
Iberdrola has selected 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 tower of the wind turbines, 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 have been produced in Avilés by another Spanish company, Windar.
RTS is a company in which Iberdrola has a stake through its international open innovation programme PERSEO, which seeks to promote entrepreneurial solutions related to the energy transition. Based in Utrera (Seville), RTS has evolved alongside Iberdrola from products for the energy refurbishment of buildings to now offering solutions to protect wind structures in marine environments, including both wind turbines and substations.
The Windanker offshore wind farm will have a capacity of 315 MW and is expected to come on stream at the end of 2026, becoming the company's third in the German Baltic Sea, after Wikinger (Germany) and Baltic Eagle (Germany). Since December 2024, the Japanese company Kansai has participated in the project with a 49% investment, while Iberdrola retains the majority stake in this alliance with 51%.
Iberdrola also has offshore wind farms in operation in the United Kingdom (West of Duddon Sands and East Anglia One) and France (Saint-Brieuc) and is developing East Anglia Two and Three in the United Kingdom and Vineyard Wind One in the United States. Iberdrola's total investment in offshore wind power amounts to €25 billion, of which around €10 billion corresponds to facilities in operation and €15 billion to projects under construction.
PERSEO, driving energy innovation
The investment in RTS is in line with the strategy implemented by Iberdrola through PERSEO, which has already invested in more than 30 companies and created an ecosystem with more than 300 start-ups and emerging companies that promote the electrification of the economy and a more secure, competitive and sustainable energy model. The programme carries out venture capital investments, strategic alliances, innovation calls and pilot tests that validate and accelerate the integration of new technologies.
With investments of more than €400 million in 2024, Iberdrola is the private energy company that invests the most in R&D&I in the world, according to the European Commission. The Group plans to invest €1.6 billion in this area between 2025 and 2028.
Source: Iberdrola
