Iberdrola’s Latest German Offshore Wind Farm Begins Supplying Electricity to Grid

The Windanker offshore wind farm now supplies electricity to the German grid, thanks to 50Hertz's Ostwind 3 connection.
Iberdrola's New German Offshore Wind Farm Feeding Electricity into Grid

The Windanker offshore wind farm has begun supplying electricity to the German grid, according to 50Hertz, the transmission system operator (TSO) responsible for the Ostwind 3 grid connection that links Iberdrola’s Baltic Sea wind farm to the grid.

Jasmund offshore platform at Windanker; Photo: 50Hertz / A. Schmidt

On 31 August, 50Hertz announced the completion of final commissioning tests. Most of the wind farm’s 21 turbines are now feeding electricity into the German high-voltage grid via the Jasmund offshore platform, a cable connection spanning approximately 100 kilometers subsea and on land, linking to the new Stilow substation near Greifswald.

The Jasmund offshore substation (OSS), developed by HSI joint venture—a collaboration of HSM Offshore Energy, Smulders, and Iv—was installed in the Baltic Sea earlier this year by Heerema Marine Contractors.

50Hertz has a binding completion date for Ostwind 3 by the end of September, while Iberdrola plans to commission the Windanker offshore wind farm in the last quarter of 2026. The 315 MW Windanker will consist of 21 Siemens Gamesa SG 14-236 DD wind turbines, each with Siemens Gamesa’s Power Boost to produce approximately 15 MW.

Wind turbine components began arriving at Mukran Port on the German Baltic Sea coast earlier this year for pre-assembly before offshore installation.

In May, DEME indicated its new jack-up vessel Norse Energi would start work on Baltic and North Sea projects, beginning with Windanker in June 2026. DEME is installing the Windanker turbines after acquiring Havfram, which secured the installation contract in 2024.

The 315 MW offshore wind farm, located northeast of Rügen island, forms part of Iberdrola’s Baltic Hub, a cluster with a combined capacity of around 1.1 GW, including the Wikinger and Baltic Eagle wind farms.

Original Story at www.offshorewind.biz