Scope of Work
Categories:
Geophysical SurveyGeotechnical Survey
Quantities:190 km submarine cable
Cable Specifications:
TypeHVDC
Route Length176 km
Source text:
NextGeosolutions commissioned by Prysmian to provide marine geophysical and geotechnical surveys for the EGL1 subsea route; project descriptions reference 176 km subsea cable and 20 km underground cable (HVDC World / Next Geosolutions).
Contract Details
Description
Next Geosolutions was contracted by Prysmian Group to deliver comprehensive land topographic and marine geophysical and geotechnical surveys along the nearshore and offshore sections of the Eastern Green Link 1 (EGL1) cable corridor. The surveys were intended to provide the detailed seabed and sub-seabed data required for final design and engineering of the subsea route between Torness (East Lothian) and Hawthorn Pit (County Durham). The scope included high-resolution multibeam and sub-bottom profiling together with geotechnical work (boreholes/CPTs/vibrocores) to inform cable routing and installation risk mitigation. Survey operations were scheduled in 2025 (Q2–Q4) and employed modern survey vessels and ROV systems to ensure accurate seabed mapping and risk identification ahead of cable installation. The work supported Prysmian’s EPCI delivery for the EGL1 HVDC link.