Offshore Wind

Helping you reduce the CAPEX and OPEX of your projects

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With many years of proven experience in the shipbuilding and offshore industries, and following the integration of the Sofresid Engineering teams, we offer comprehensive engineering services and recognized expertise to accelerate offshore wind farm projects around the world. From floating structures to fixed foundations and offshore substations, we offer turnkey solutions to developers, EPCI contractors, and technology owners.

15

Years of expertise

More than 20

Projects around the world

14

Technical publications

Our services

Ekium offers comprehensive engineering solutions that encompass all aspects of the product lifecycle: Design, Manufacturing, Port Logistics, Transportation & Installation, and Operations & Maintenance.

Floating Structures

With an agnostic approach that is independent of specific buoy technologies and a proven track record in multiple pre-FEED and FEED projects, Ekium offers:

  • Concept screening and optimization using a design-to-cost methodology,

  • Overall float design: coupled simulations, time-domain fatigue calculations, structural analysis, mooring systems, auxiliary systems,

  • Management of interfaces with wind turbine manufacturers Siemens Gamesa, Vestas, and General Electric (over 10 years of collaboration),

  • Industrialization support: manufacturing and assembly monitoring,

  • Port logistics + transport & installation engineering,

  • Supervision of offshore operations.

FOWT (Floating Offshore Wind Turbine) Frame: Accelerate Your Floating Wind Projects

Save valuable time with FOWT Frame, Ekium’s proprietary calculation suite for floating offshore wind turbines.

Key benefits:

  • Ultra-fast screening with GLOSS: rapidly evaluate your concepts,

  • Seamless integration: automatic modeling to Orcaflex/OpenFast,

  • Unmatched performance: structural analyses 10 to 100 times faster than traditional solution methods (via TRUST© developed by our partner Front Energies),

  • Adaptive accuracy: calculation methods tailored to the project phase.

Complementary tools (DLC selection, anchors, post-processing) round out this end-to-end solution.

Result: solid arguments for decision-making during critical phases, optimized timelines, and controlled risks.

Fixed-bottom foundations

With extensive involvement in two major French offshore wind EPCI projects (Fécamp and Courseulles) and solid experience in the Oil & Gas sector, Ekium offers:

  • Design of all types of foundations: jackets, GBS (gravity-based structures), monopiles, including auxiliary systems and interface management,

  • Support for industrialization: manufacturing and assembly oversight,

  • Port logistics + transport & installation engineering.

Offshore Substations (OSS)

Drawing on over 30 years of experience in living quarters and technical buildings for the Oil & Gas industry, Ekium delivers:

  • Multidisciplinary engineering expertise (electrical, mechanical, structural, HVAC (Heating, Ventilation, and Air Conditioning)),

  • Full engineering capabilities: foundation + topside integration.

Modular Electrical & Instrumentation Room for Transition Structures (ME&IR)

Ekium has developed a generic integrated solution for auxiliary systems in offshore wind turbine foundations, offering key benefits:

  • Centralized management of interfaces between the WTG (wind turbine), foundation, and IAC (inter-grid cable),

  • Adaptable and replicable design for all types of foundations (fixed or floating),

  • Turnkey package ensuring schedule and reliability through early FAT (factory acceptance testing),

  • Opportunity for local content: scaled to the capabilities of SMEs.

EKIUM
Our customers face critical challenges: reducing CAPEX and LCOE while accelerating time-to-market, ensuring structural reliability and profitability, managing complex supply chains and industrialization, and navigating evolving regulatory frameworks in multiple offshore wind markets.
Frédéric GUENA
Head of Offshore and Submarine Wind Division

Our strengths

  • Technology-agnostic approach: independent expertise across all buoy technologies

  • Proven track record: over 20 projects delivered worldwide

  • End-to-end capability: from concept to operations

  • Proprietary tools: FOWT Frame, GLOSS, ME&IR solution

  • OEM collaboration: over 10 years of working with major wind turbine manufacturers

  • Multidisciplinary excellence: expertise in naval engineering, Oil & Gas, and renewable energy

  • Technical leadership: 14 publications at international conferences

SAIPEM SA

Design of all single-pile foundations (MP and TP) for the CALVADOS wind farm (450MW), including support for manufacturing follow-up, transport operations and offshore installation

SAIPEM SA / BOUYGUES TP

Design of the GBS foundations for the FECAMP offshore wind farm (500MW), covering the entire scope of the Structure and Integrated Systems (Electricity, Instrumentation, Monitoring/Security - Maintenance) and manufacturing follow-up

EKWIL

Evaluation of alternative float designs to the INO-C float identifying gains in float performance and weight using our FOWT frame tool

SAIPEM

Originator of the STAR 1 float design / realization of several pre-FEED and FEED projects for various international floating wind farms

SEAWAY7

Evaluation of different semi-submersible float configurations for turbines with power >20MW

DRAGADOS

Design standard OSS 2GW HVDC: Assessment of compliance with RTE requirements and French regulations

Ready to accelerate your offshore wind project?

They trust us

Seaway7 subcontracted Ekium to carry out an engineering study in the field of floating offshore wind turbines. We really appreciated the quality of the technical results, as well as the flexibility and responsiveness of the Ekium engineering team!
Seaway7

Our strategic partnerships

Innovating for performance

In the face of the challenges posed by industrial transformation, Ekium draws on its multidisciplinary expertise to anticipate the challenges of tomorrow. Our teams of engineers and project managers implement innovative solutions that span the entire industrial value chain.

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Our News & Technical Publications

Group presence

The Snef Group operates across four continents—the Americas, Europe, Africa, and Oceania—in 30 countries and 80 cities, with a network spanning more than 100 international locations.