Baltic Eagle Offshore Wind Farm, Germany

Baltic Eagle is an offshore wind farm located in the German waters of the Baltic Sea. The 476MW farm was developed by Iberdrola and it is the company’s second major offshore wind project in Germany after the Wikinger wind farm, which was commissioned in 2017.

Iberdrola won the bid for the Baltic Eagle project in April 2018 through an offshore tender conducted by the German Federal Networks Agency (Bundesnetzagentur).

The company began the construction of the wind farm after securing approval from the Federal Maritime and Hydrographic Agency (BSH) in April 2022.

In July 2023, UAE-based renewable energy company Masdar signed an agreement to acquire 49% stake in the Baltic Eagle. The deal valued the project at around €1.6bn.

Iberdrola retained 51% interest in the property.

In July 2025, Masdar and Iberdrola announced full energisation of the offshore wind farm.

Baltic Eagle will generate renewable electricity of 1.9 terawatt-hours (TWh) annually, enough to meet the energy requirements of 475,000 homes.

The project will also offset nearly 800,000 tonnes of carbon dioxide emissions every year.

Baltic Eagle Offshore Wind Farm location

The Baltic Eagle offshore wind farm is located around 30m off the coast of Pomerania to the northeast coast of the German island of Rügen.

Water depth at the site is between 40m and 45m. The site includes an area of around 40km².

Baltic Eagle Wind Farm details

Baltic Eagle project features 50 MVOW V174 wind turbines, each with a capacity of 9.53-MW. With a 174m rotor blade diameter, the turbines have a swept area of 23,778m².

The wind turbine towers are erected on monopile foundations that are anchored to the seabed. The turbine towers are linked to the foundations using transition pieces.

The mono-piles have a diameter of between 9m and 8.75m and their length varies from 75m to 90m, depending on the water depth for the wind turbine position. The maximum foundation weight is 1,402 tonnes.

Activities at the wind farm are undertaken from the port of Sassnitz-Mukran in Rügen.

Power evacuation

The offshore substation is operated by 50Hertz, the transmission system operator for north-eastern Germany. The facility collects electricity generated by the wind turbines and steps up the voltage from 66kV to 220kV for transmission.

It weighs 7,150 tonnes and features a platform housing transformers and other electrical equipment.

The electricity is transmitted to the onshore platform in Lubmin through two 90km long high voltage subsea cables and subsequently, it is fed into the power grid.

Contractors involved

MHI Vestas Offshore Wind has been contracted to supply the MVOW V174 wind turbines for the Baltic Eagle wind farm project. Deliveries and installation were completed in 2024.

Fred. Olsen Windcarrier (FOWIC) secured a contract directly from Vestas Wind Systems (Vestas) for the transportation and installation of 50 Vestas V174-9.5MW wind turbines in July 2021. The works were executed by the jack-up installation vessel Blue Tern.

Iberdrola contracted German company EEW Group Special Pipe Constructions (EEW SPC) for 50 monopiles, while Spanish firm Windar fabricated the transition pieces that linked the turbine towers to the foundations.

The foundations will be transported and installed by offshore construction company Van Oord. The Dutch company deployed the heavy lift installation vessel Svanen to deploy the monopiles.

Additionally, Van Oord used its Nexus vessel and the Dig-It trencher to lay interconnection cables.

TKF secured a contract from Van Oord to supply about 79km 66kV inter-array cables for the Baltic Eagle offshore wind farm in August 2021.

Iberdrola signed an agreement with 50Hertz for the construction, installation and commissioning of the offshore substation.

The joint venture (JV) of Iemants-Fabricom delivered the structural elements of the substation, while marine contractor Heerema transported and installed the substation on the Baltic Eagle site.

Additionally, Siemens Gas and Power was contracted for all main electrical equipment for the low-voltage part of the offshore substation.

Vos Prodect was selected to deliver all sealed Cable Hang-Off Systems for the offshore wind farm in July 2022.

EDS HV Group, part of James Fisher Renewables, was awarded a contract to deliver the high voltage safety management commissioning phase for the offshore wind farm in January 2022.

Fraunhofer IWES was contracted to conduct boulder detection and geohazard survey of 50 wind turbine locations and the associated OSS within the Baltic Eagle offshore wind farm in January 2021.

Marine and energy consultant AqualisBraemar LOC provided Marine Warranty Survey (MWS) services for the Baltic Eagle Offshore Wind Farm in August 2021.

Tekmar Energy won a contract from Van Oord to supply its Generation 10 Cable Protection System for the Baltic Eagle offshore wind farm in August 2021.