In partnership with data imaging consultant TGS, the Green Volt project has delivered a record-breaking ultra-high resolution (UHR) 3D seismic survey — the largest and most advanced of its kind in offshore wind survey work to date. Carried out by the state-of-the-art Ramform Vanguard vessel, the campaign achieved unprecedented channel counts and streamer spreads in the surveying of the Green Volt development site.
What sets this survey apart is not just its technical ambition — it’s the insight it delivers. By integrating an ultra-high resolution (UHR) 3D seismic survey with Multibeam Echo Sounder (MBES), Sub-bottom Profiler (SBP), Side Scan Sonar (SSS) and magnetometer data into a single, unified dataset, we’ve created one of the most comprehensive seabed profiles ever developed for a floating offshore wind project.
This data is already being actively used by our in-house teams across geoscience, engineering, and project planning:
Geoscientists are interpreting subsurface features and extracting soil elastic properties to identify geohazards and characterise soil conditions at the array site; engineers are leveraging the integrated dataset to optimise foundation design, anchor placement, and cable routing; whilst planning teams are refining construction methods, evaluating risks, and minimising environmental impact.
Every line of data contributes to safer, more cost-efficient, and better-informed decisions as we move through Green Volt’s FEED (Front-End Engineering Design) phase.
Beyond the cutting-edge technology, this achievement is a testament to exceptional collaboration — with teams both offshore and onshore.
Inside the state-of-the-art Ramform Vanguard survey vessel
”This milestone represents more than just a technical achievement — it’s a powerful example of what can be accomplished through true collaboration. TGS brought world-class seismic expertise and an innovative approach that helped deliver a survey of unprecedented scale and value. From our specialist partners to the vital support of the wider local supply chain, everyone played a role in making this a success. It’s a proud moment for the Green Volt project and a strong step forward in Scotland’s floating wind future."
Mark McDonaldStakeholder Lead - Green Volt project
We also acknowledge the vital contribution of the Port of Aberdeen, whose support during mobilisation and demobilisation ensured smooth and efficient operations. Their professionalism was key to maintaining project momentum.
In addition, the local supply chain played an important role. Hotels, restaurants, and service providers across the region welcomed and supported project teams and vessel crews, providing valuable services and reinforcing the positive economic impact of offshore wind development at a local level.
This has truly been a collaborative success — a demonstration of what’s possible when innovation, local partnerships, and shared ambition come together.
Flotation Energy and Vårgrønn extend their sincere thanks to all project partners, with particular appreciation for TGS and Global Maritime, whose specialist seismic expertise and steadfast support were instrumental in the successful completion of this critical phase of the Green Volt project — a true milestone in floating offshore wind development.
