Site characterisation and integrated ground modelling for the Dutch Nederwiek Wind Park Site I (2024–2025). Quantitative seismic inversion contribution to a partnership led by Arup for the Netherlands Enterprise Agency (RVO).
SolidGround partnered with Arup, Inosys, BGS, and RockWave on the site characterisation for Nederwiek Wind Park Site I, located 90 km off the Dutch west coast. The project, led by Arup for the Netherlands Enterprise Agency (RVO), produced an integrated ground model that prospective developers can use to bid on the site with greater confidence.
The work combined ultra-high-resolution seismic data with extensive geotechnical investigations and laboratory data. SolidGround's contribution centred on quantitative seismic inversion — using pre-stack inversion to predict geotechnical parameters spatially across the site by linking elastic-parameter outputs to physical soil samples.
Three deliverables underpin tender bids on the zone: a Geological Ground Model (GGM) mapping changes in the earth’s layers in the upper 100 m below the seabed, a Geotechnical Interpretative Report (GIR) summarising field and lab data to reduce risks for foundation and cable design, and an Integrated Ground Model (IGM) — a 3D digital site analysis combining geophysical data and ground surveys to predict soil conditions across the area.
- Distance offshore
- ~90–100 km off the west coast of the Netherlands
- Site area
- 283 km²
- Depth of investigation
- Upper 100 m below seabed
- Seismic data
- ~5,000 km of 2D ultra-high-resolution seismic (UHRS) acquired by RVO in 2023
- Geotechnical data
- 200+ point measurements (CPT, S-PCPT, boreholes, lab tests)
- Inversion outputs
- Bulk, shear & Young's modulus · Density · Synthetic CPTs site-wide
- Deliverables
- Geological Ground Model (GGM) · Geotechnical Interpretative Report (GIR) · Integrated Ground Model (IGM)
- Purpose
- De-risk foundation & cable design ahead of the seafloor leasing round
- NL context
- One of 8 wind-farm zones supporting the Dutch 21 GW-by-2030 offshore-wind target
- Nederwiek I — Integrated Ground ModelArup (with SolidGround) · Client report for RVO (Netherlands Enterprise Agency), March 2026 (2026)
- Nederwiek I (NL) Integrated Ground Model: UHRS pre-stack inversion for quantitative ground modellingDalgaard, E., Horn, F., Stuyts, B., Smith, C. A., Cox, P., Boylan, C., Bronkhorst, J., Wezenberg, S., Dyer, N. & Blacker, K. · 1st EAGE/SUT Workshop on Integrated Site Characterisation for Offshore Wind in Asia Pacific, Perth, Australia (2024)
- AVO-compliant processing and elastic pre-stack inversion of UHRS data at Nederwiek Wind Farm Site ICox, P., Boylan, C., Smith, C., Dalgaard, E., Horn, F., Stuyts, B., Bronkhorst, J., Wezenberg, S., Dyer, N. & Blacker, K. · Fifth EAGE Global Energy Transition Conference & Exhibition (GET 2024), Rotterdam, Netherlands (2024)
- Nederwiek Zuid (NL) Integrated Ground Model: UHRS pre-stack inversion for quantitative ground modellingDalgaard, E., Stuyts, B., Horn, F., Smith, C., Cox, P., Boylan, C., Bronkhorst, J., Wezenberg, S., Dyer, N. & Blacker, K. · 1st EAGE/SUT Workshop on Integrated Site Characterisation for Offshore Renewable Energy, Boston, USA (2024)
- Nederwiek Zuid (NL) Integrated Ground Model: discipline-led approach, optimising offshore wind site characterisation productsSmith, C., Eaton, S., Bizzotto, T., Dakin, N., Moran, P., Cox, P., Dalgaard, E. & Bronkhorst, J. · 1st EAGE/SUT Workshop on Integrated Site Characterisation for Offshore Renewable Energy, Boston, USA (2024)
- Nederwiek Zuid (NL) Integrated Ground Model: AVO-compliant UHRS processing for elastic pre-stack inversionCox, P., Boylan, C., Smith, C., Dalgaard, E., Horn, F., Stuyts, B., Bronkhorst, J., Wezenberg, S., Dyer, N. & Blacker, K. · 1st EAGE/SUT Workshop on Integrated Site Characterisation for Offshore Renewable Energy, Boston, USA (2024)