Our Services

Technology and Technical Consulting

Offering cutting-edge solutions for marine and offshore wind energy technology, we are a team of consultants with ocean engineer and naval architect qualifications uniquely suited for high-level design, engineering, and advanced analytical capabilities with specific expertise in integrated services in structural engineering, hydrodynamics and naval architecture fields.

We have experience in the following standard analyses:

• Global Analysis of Jackups, Fixed Platforms, and Floaters
• Elevated Analysis of Jackups and Liftboats (Elevated Ratings)
• Afloat Leg Strength Analysis
• Buckling Analysis
• Nomograms and Cantilever Load Charts
• Fatigue Analysis
• Life Extension Studies
• Conversions/Repairs

We have experience in the analysis and design of the following structures:

• Jackups, Liftboats, Semisubmersibles, Fixed Platforms, SPARS, and Drillships
• Cantilever Beams and Extensions
• Living Quarters
• Helidecks
• Lifeboat Davits
• Crane Foundations
• Drill Floors and Sub-base Structures

Hydrodynamics 

We have broad experience in hydrodynamic studies of numerous vessel types, including Jackups, Liftboats, Semisubmersibles, Drillships, FOWTs, barges, and SWATH vessels. Our specific expertise lies in our knowledge of the behavior of floating bodies. Hydrodynamic analyses are performed utilizing WAMIT, OrcaWave, and ANSYS AQWA.

Site-Specific Assessments

We have completed over 100 site-specific assessments of jackups, liftboats, and WTIVs, covering all major operating regions in the world. Site-Specific Assessments (SSA-Es) are performed to ISO 19905-1. Our partners maintain database of detailed finite element models covering every major jackup design in operation.

Naval Architecture

Our experience extends to general naval architecture services. This includes: 

• Intact and Damage Stability 
• Development of Loading Conditions and Forms 
• Lines Plans of Marine and Offshore Vehicles
• Marine Operations Manual Development/Review

Project Management

  End-to-end project management to ensure timely and budget-conscious delivery.

Feasibility Studies 

  Comprehensive studies to assess site viability and optimize wind energy production.

Business Solutions

By leveraging our strategic location in the Gulf of Mexico, a hub of mature offshore energy infrastructure, we provide tailored solutions for offshore wind projects throughout North, Central, and South America. This positioning allows us to seamlessly integrate with existing supply chains, delivering cost-effective and reliable solutions to our clients. Beyond the Americas, our expertise extends to the Asia-Pacific region, where we focus on optimizing supply chain management to ensure timely delivery of materials and equipment. Our experience in coordinating complex logistics across diverse geographies enables us to minimize delays and maintain project timelines. Whether addressing local market needs or navigating international logistics challenges, we deliver solutions that are both innovative and practical, making us a preferred partner in the expanding offshore wind industry.

Applications

Floating Wind Power Solutions

GCWA partner developed the PyraWind semi-submersible FOWT targeting particularly Gulf of Mexico deep water region with hurricane force in mind.  We teamed up in the application for both NYSERDA and NOWRDC funding opportunities aiming at conceptual design, water tank basin model testing, ABS certification, and scaled down prototype demonstration. 

GCWA partner developed the Wind Cell Spar concept including the completion of all analyses and documentation to obtain an Approval-in-Principle from Lloyd’s Register. The Wind Cell Spar is based on the cell spar concept. The cell spar incorporates a series of smaller diameter cylindrical columns (referred to as “cells”) combined in a parallel formation to form a larger equivalent diameter hull similar to a traditional spar. The cell spar is an established design that has been successfully employed in the offshore oil and gas industry. The design lends itself to domestic construction as it leverages the existing fabrication expertise of the United States by employing techniques that are closely aligned with jacket and suction pile construction. The steel plates of the Wind Cell Spar are welded and rolled into the diameter of the can sections. The can sections are then connected in an assembly line like process using a Cell Assembly Rack. SparWind is a cost effective solution for deeper waters such as 150 m or more that both Japan and Korea are of our targeted martketplace.

GCWA partner is developing 15MW HybridWind tension leg platform based FOWT targeting particularly Taiwan West Coast deeper waters ( 60m – 100m ) OWFs with Typhoon force and challenging soil conditions in mind.  HybridWind is a cost effective and turbine friendly stable solution that has best power generation nature, least environmental impact with small footprint and carbon reduction in mind.  We team up with local construction industries in the application for MOEA funding opportunities aiming at conceptual design, water tank basin model testing, BV plus CR AiP certification and scaled down prototype demonstration. 

Seismic Analysis of Jackups

GCWA partner has extensive experience in performing Seismic Screening assessments of jackups to ISO 19901-2 and ISO 19901-2. We maintain a database of detailed finite element models in SAP2000. GCWA also performs time history and collapse analyses as detailed on our simulation engineering page…

GCWA partner performed all basic design tasks for the BEL320 liftboat design including full ABS Approval.  The first iteration of the BEL320 was constructed in 2016 and is currently operating as the Blue Titanium.