Tetra Tech

Tetra Tech RPS Energy participated as a collaboration partner supporting Fraunhofer IWES under RVO’s contract to develop an Integrated Ground Model (IGM) for the Doordewind offshore wind farm zone, which includes the planned Doordewind II 2 GW site. The collaboration contributed specialist engineering and interpretation capability to the IGM programme, which is intended to synthesise geoscience datasets into a consistent ground model that can inform later detailed design activities. The IGM programme is positioned as a pre-competitive derisking measure for the Dutch offshore wind tender pipeline. By converting raw and processed seabed datasets into a structured and interpretable ground model, the work supports more efficient planning of future geotechnical campaigns and strengthens the technical basis for engineering design of wind farm assets, including foundation concepts and cable-route development. As reported in March 2025, the IGM work was commissioned by the Netherlands Enterprise Agency (RVO) for publication and use by prospective permit-tender participants. Within this framework, Tetra Tech RPS Energy’s contribution formed part of the development-stage advisory and engineering consultancy effort, helping ensure that the integrated model is technically robust, traceable to input data, and suitable for use in subsequent offshore wind farm design and procurement decisions related to Doordewind II and the wider zone.