Posted on December 3, 2025
Germany’s largest offshore wind farm hit a big milestone: The first turbine at EnBW’s He Dreiht project has produced its first kilowatt-hour of electricity and sent it into the grid.
More turbines are expected to come online over the coming weeks. European energy provider EnBW has already installed 27 of the wind farm’s 64 turbines, all of which are scheduled to be commissioned by summer 2026.
Peter Heydecker, EnBW board member for Sustainable Generation Infrastructure, described the November 25 milestone as a “significant moment for EnBW.” With 960 megawatts (MW) of total capacity, He Dreiht is now Germany’s largest offshore wind farm.
Vestas supplied the 15 MW turbines, marking their world debut. Nils de Baar, president of Vestas Northern and Central Europe, said the giant turbine’s technology sets a new standard for offshore wind. “Its efficiency and performance enable a significant increase in energy yield per turbine.”
EnBW wrapped up the wind farm’s internal cabling in August. Those lines connect all the turbines and feed into a converter platform operated by transmission system operator TenneT. That’s where the power is collected, converted from AC to DC, and sent to shore through two high-voltage DC cables.
Once complete, He Dreiht will generate enough electricity to power about 1.1 million households. The project is being built without state funding and sits roughly 85 kilometers (53 miles) northwest of Borkum and 110 kilometers (68 miles) west of Heligoland. EnBW’s offshore office in Hamburg is coordinating the build.
A partner group made up of Allianz Capital Partners, AIP, and Norges Bank Investment Management owns 49.9% of the project. Total investment comes in at around €2.4 billion.
