Offshore Met Mast Design
Concept to detailed design of new offshore meteorological mast structures, including foundations, access and fatigue-driven details.
CEng FICE / CHARTERED CIVIL ENGINEER / PLYMOUTH, UK
Engineering the offshore wind lifecycle.
From first pile to final removal.
Design, project management and engineering services for energy utilities and private developers. Thirty years of marine civil and offshore construction, now building the tools to decommission the industry's foundations.
0Years in marine & offshore engineering
0Offshore wind service lines
0Patent pending: monopile extraction
CEng FICEFellow, Institution of Civil Engineers
// 01 SERVICES
What GD7 delivers
Hands-on engineering and delivery management across the whole asset life, for utilities and private developers.
Monopile Foundation Installation
Installation engineering and delivery management for offshore wind turbine monopile foundations, from method statements to marine spread.
Export & Inter-Array Cables
Project management of export cable and inter-array cable installation campaigns, including route, vessel, burial and termination interfaces.
UXO Risk & Clearance Management
Project management of unexploded ordnance clearance for cable routes, with a risk-based approach to what genuinely needs clearing.
Decommissioning
Planning and delivery of offshore wind decommissioning activities, and the monopile extraction system now in development.
3D Modelling & Visualisation
SketchUp Pro modelling and 3D-printed physical models to make complex marine operations clear to clients, regulators and crews.
// 02 INTERACTIVE EXPLORER
Click the wind farm
Every element is somewhere GD7 has worked. Select a component to see what is delivered there.
Schematic for illustration. Not to scale.
// 03 EXPERIENCE
A career built offshore
Thirty years across marine civil engineering, offshore construction and global offshore wind.
01
Decommissioning
Offshore wind and marine decommissioning activities for energy utilities: planning, engineering and delivery.
02
Offshore Met Mast Design
Design of new offshore meteorological mast structures for developers and utilities.
03
Monopile Foundation Installation
Engineering and installation of offshore wind turbine monopile foundations.
04
Export Cable Installation PM
Project management of export cable installation from offshore substation to landfall.
05
Inter-Array Cable Installation PM
Project management of inter-array cable installation across the wind farm.
06
UXO Clearance Management
Project management of UXO clearance for cable routes.
NOW
Monopile Extraction System
Developing an extraction system for decommissioning monopiles. UK patent pending, EU to follow. Plus ongoing consultancy for EON on decommissioning and export cable installation.
// 04 PROJECTS
Project showcase
Photographs, video and 3D models from design, project management and engineering work across the offshore wind sector.
DESIGNAdd render or photo
Offshore Met Mast Design
New met mast structure for an offshore wind development.
INSTALLATIONAdd photo or video
Monopile Foundation Installation
Installation of offshore wind turbine foundations.
CABLESAdd photo or video
Export Cable Installation PM
Project management for an offshore wind export cable.
CABLESAdd photo or video
Inter-Array Cable Installation PM
Turbine-to-turbine cabling campaign management.
UXOAdd image or survey graphic
UXO Clearance Management
Cable route clearance project management.
DECOMMISSIONINGAdd photo or video
Offshore Wind Decommissioning
Planning and delivery of decommissioning work.
INNOVATIONAdd concept render
Monopile Extraction System
Patent-pending decommissioning technology.
DESIGNAdd model render or print photo
3D Models & Printed Prototypes
SketchUp Pro and 3D-printed models.
// 05 INNOVATION
Monopile extraction system
PATENT PENDING (UK) · EU TO FOLLOW
Thousands of monopiles will need to come out of the seabed as the first generation of wind farms reaches end of life. GD7 is developing a dedicated extraction system to make that safer, faster and more predictable.
- Purpose-designed for monopile decommissioning
- Engineered by someone who has installed them
- Concept shown here; detail released under NDA
Concept illustration only. Not a technical representation of the patented design.
3D viewer: drop
assets/models/monopile-extraction.glb in the project and it appears here automatically.// 06 INSIGHTS
Challenging how the industry works
Two positions from GD7 that question accepted practice in offshore wind.
UXO clearance as it stands is not needed, and it needs reform
Cable route UXO clearance is often driven by a blanket default: assume a hazard, clear everything, price in the programme risk. GD7's position is that a properly evidenced, risk-based assessment should decide what actually has to be removed, how much residual risk is acceptable, and what can be avoided or left in place.
- Replace blanket clearance with quantified risk assessment
- Use route engineering and avoidance before disposal
- Cut programme, cost and environmental impact
Illustrative comparison of intervention volume. Replace with your own data.
Tunnel the connection between offshore and onshore substations
Cable landfalls are a recurring consenting, programme and environmental pain point. New tunnelling technology is lowering cost and increasing advance rates, which makes a bored connection between the onshore and offshore sides a serious option for new wind farms.
- Less disruption at beaches, dunes and the intertidal zone
- Fewer weather-window constraints than open-sea cable laying
- Protected, accessible and replaceable cable route
- Rapidly improving tunnelling cost and speed
// 07 ABOUT
Credentials you can rely on
GD7 Ltd is a Plymouth-based engineering consultancy led by a Chartered Civil Engineer and Fellow of the Institution of Civil Engineers. The work is hands-on: marine civil engineering, offshore construction and global offshore wind, backed by direct operational experience including surface supply commercial diving qualifications.
Ongoing consultancy for EON covers decommissioning and export cable installation. Outside the day job, GD7 builds its own engineering tools and software and makes physical models on 3D printers.
CEng FICEChartered since 2001. Fellow of the ICE
BEng (Hons)Civil Engineering, Liverpool, 1995
HSE Part 3Surface supply commercial diving
NEBOSHHealth and safety qualification
Lloyd's RegisterRegistered Quality Auditor
ICE MentorApproved Training Mentor
// 08 CONTACT
Have a project in mind?
Tell me about the scope and timeline and I will come back to you directly.