Benefits of an Engineering Focused Ground Model, an Irish Sea Wind Farm Case Study

The study on the Codling Wind Park (CWP) highlights the importance of an Integrated Ground Model (IGM) for offshore wind farm development in complex geological settings. By combining geotechnical, geophysical, and geological data, the IGM enhances site characterization, reduces uncertainties, and improves decision-making for turbine siting and foundation design.

The Western Irish Sea Formation (WISF), a key geological unit in the area, was mapped using a staged approach, identifying distinct Holocene and WISF channel facies. Integration of seismic, borehole (BH), and Cone Penetration Test (CPT) data enabled the differentiation of subsurface features, particularly in areas of poor acoustic reflectivity. This approach reclassified some previously identified geohazards, minimizing potential project risks.

The study also assessed seabed penetration to guide geotechnical site investigations for wind turbine monopile foundations. The Geotechnical Interpretation Report (GIR), developed alongside the IGM, enhances site-specific planning for future surveys.

Ultimately, the engineering-focused IGM ensures more accurate geological interpretations, optimized infrastructure planning, and improved risk mitigation. This methodology provides a scalable approach for offshore wind farm development, ensuring efficient site selection and design while addressing geohazard risks