Windanker offshore wind farm

Windanker, our third offshore wind farm in the Baltic Sea

Iberdrola projects Offshore wind Germany

The Iberdrola Group is developing its third offshore wind farm in the Baltic, Windanker, with an installed capacity of 315 MW. The company is thus strengthening the Baltic Hub, which will add more than 1,100 MW of installed capacity.

Ongoing project

Windanker offshore wind farm

Location Baltic Sea (Germany)
Capacidad instalada
Total installed capacity 315 MW
Investment More than 1 billion euros
Puesta en marcha
Comissioning Last quarter of 2026

Iberdrola is undertaking a new renewable project, the Windanker offshore wind farm, located in German waters of the Baltic Sea. The company thus continues its commitment to the deployment of renewables in international markets, with this wind farm being the group's third wind project in the Baltic.

Windanker has a planned investment of more than one billion euros and will reach an installed capacity of 315 MW after its commissioning, scheduled for the last quarter of 2026. The majority of the renewable electricity generated will be traded through long-term power purchase agreements (PPAs) on the German market.

Thanks to the evolution of offshore wind technology and its knowledge of the Baltic Sea, Iberdrola will maximise the efficiency of Windanker, which will incorporate new generation turbines with a unit capacity of approximately 15 MW.

Still under construction and with geotechnical studies underway, the future wind farm has reached one of its latest milestones with the authorisation of the submarine cable route, essential to connect the offshore substation – about 24 kilometres away – to the German national grid. The approval has been received by 50Hertz, the electricity system operator in northeast Germany. It marks a crucial step in the process of installing and connecting the Windanker cabling. Installation of the foundations is scheduled to begin in July 2025, while the interconnection cables are expected to be installed from December of the same year.

The transport and installation of the monopile foundations and interconnecting cables will be carried out by Van Oord, the same company involved in the development of the Baltic Eagle offshore wind farm. As well as this other Baltic project, the Dutch company will deploy its 8,000 tonne heavy lift vessel, called Svanen, which has installed more than 700 foundations across Europe.

Germany plans to develop 20,000 MW of offshore wind capacity by 2030. This target could be revised upwards following the approval this spring of the need to increase CO2 emission reductions to 65 % by 2030 and 88 % by 2040, with the aim of reaching climate neutrality by 2045, five years earlier than the initial commitments. Regulation in Germany is characterised by stability and predictability, creating a framework of confidence for renewable energy developers.

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What is a PPA?

A PPA (Power Purchase Agreement) is a long-term agreement for the purchase of energy. 

Strengthening the Baltic Hub 

The project will strengthen the Baltic Hub led by the company in Germany, which will add more than 1,100 MW of installed capacity, following a joint investment of around 3.5 billion euros. The Hub is also made up of the Wikinger (350 MW) wind farm, in operation, and Baltic Eagle (476 MW), under construction.

Windanker will also benefit from other synergies during its implementation, as its development coincides with that of the parks in the East Anglia Hub complex in the UK.

Iberdrola, world leader in renewable energies

At Iberdrola, we decided to commit to renewable energies more than two decades ago as a fundamental pillar on which to build our safe, clean and competitive business model. Thanks to this vision, we are today world leaders in renewable energies, reaching 42,387 MW of renewables in operation  after Q1 2024.

This commitment is reflected in our Strategic Plan, in which we will allocate €15.5bn gross to renewables. More than half of this amount is focused on offshore wind in the US, UK, France and Germany; 28% on onshore wind and 18% on solar.