DanTysk

DanTysk is a 288 MW offshore wind farm in the German sector of the North Sea, sited roughly 70 km west of Sylt and developed as a 51/49 joint venture between Vattenfall and Stadtwerke München. The project was delivered as a single-phase, medium‑depth fixed-bottom park and was one of the early large German North Sea projects to be integrated into the SylWin cluster export link. Beyond its generation role, DanTysk is notable for adopting an operational concept that includes a permanent offshore accommodation platform bridged to the farm’s substation, enabling continuous maintenance shifts at a remote site and reducing crew transit time. Construction progressed from monopile foundation installation in 2013 to rapid turbine erection in 2014 and the park entered commercial operation late 2014/early 2015; the project benefited from collective HVDC export infrastructure (SylWin1) shared with neighbouring farms. The build experienced some grid timing risks during delivery of the SylWin export link but achieved full commissioning and formal opening in 2015. Strategically, DanTysk formed part of Germany’s early expansion of offshore wind capacity and served as a precedent for shared export infrastructure and offshore accommodation solutions. Ownership and long‑term O&M arrangements have evolved through standard service contracts, and the asset has been subject to routine remedial and life‑extension works (including ICCP remediation) consistent with mid‑life maintenance practice.