Fraunhofer-Iwes

Fraunhofer IWES was contracted by the Netherlands Enterprise Agency (RVO) to develop a fully Integrated Ground Model (IGM) for the Dutch Doordewind offshore wind farm zone, which comprises multiple 2 GW wind farm sites including Doordewind II. The IGM work packages combine and interpret available geo-data to build a coherent ground model that can be used to de-risk subsequent project phases, including foundation and cable-route engineering and the wider design of offshore wind farm installations. The IGM deliverables are intended to support the upcoming Dutch permit-tender process by improving the quality and usability of pre-competitive site characterisation. By integrating new and existing seabed and sub-surface datasets (including data from dedicated seabed survey campaigns commissioned by RVO), the IGM provides a structured basis for bidders to develop more robust engineering concepts, cost estimates, and construction strategies for the Doordewind sites. The engagement was reported in March 2025 and formed part of RVO’s broader programme to publish and share derisking datasets for the Doordewind zone. Fraunhofer IWES was expected to execute this work in collaboration with specialist partners, creating an aligned modelling and interpretation approach across disciplines and datasets. The scope sits within early-stage development and pre-tender preparation for Doordewind II and the wider Doordewind wind farm zone.