A strong foundation

We design, integrate and optimise offshore wind power systems across the full project lifecycle. Covering both AC and DC solutions, including array systems, export systems, offshore substations and onshore grid connection, we ensure that electrical infrastructure is robust, efficient, and future-ready.

Through close collaboration with structural, geotechnical and marine disciplines, the electrical design is fully coordinated with foundations, platforms and installation concepts, and always tailored to the specific grid requirements and site conditions of each project.

A combination of deep power system expertise, advanced modelling tools and cross-disciplinary collaboration supports robust decision-making. This approach reduces interface risks while ensuring compliance with international standards, grid codes and local regulatory requirements.

By integrating current and emerging technologies with industry best practice, we ensure strong interfaces, efficient execution, and power systems that are robust, cost-optimised and ready for safe, reliable operation. 

In all aspects across morphology, metocean, geology, geophysics and geotechnics, we turn large datasets into actionable insights and offer end-to-end consultancy.

Accurate and reliable data about the site conditions is essential for planning, designing, approving and constructing a project safely and efficiently. Based on site and cable route surveys, scoping, survey management, laboratory testing, quality assurance and data interpretation, we cover the full spectrum in pre-investigation.

To support informed decision‑making, we provide expertise in both macro‑ and micro‑level routing and siting, including ground investigation reports (GIRs), and prepare a solid design basis for cables and foundations.

Activities such as seabed mobility, scour, UXO clearance, marine archaeology, landfall selection, environmental impact assessment (EIA) and permitting require trustworthy site data. From pre-investigation to installation, we reduce risks, improve quality, accelerate permitting and optimise design. 

We have a long history of detailed design for more than 700 monopile foundations for offshore wind farms.

When monopiles are the preferred design solution, we cover all disciplines needed for feasibility assessments, as well as conceptual or detailed design of monopile structures. This includes transition piece-less (TP-less), bolted monopile-transition piece (MP-TP) or grouted MP-TP connections, as well as foundation design with suction buckets, driven or drilled piles. Our extensive experience with monopile foundations ensures the foundation's adaptability and resilience to the site conditions. 

We combine deep theoretical knowledge and data-driven digital platforms. Our processes are fully integrated and automated with linear and non-linear analyses and applied engineering expertise from start to finish.

We have completed the detailed design of more than 150 jacket foundations for offshore wind farms, with a track record of 84 out of the first 86 wind turbine generator (WTG) jackets installed worldwide. This, combined with a long history of oil and gas jackets, ensures our customers get the right expertise when jackets are the preferred design solution.

In-house experts cover all disciplines needed for the conceptual or detailed design of jacket structures, including three- and four-legged jackets, as well as foundation design with suction buckets, driven or drilled piles.

Our strength lies in our ability to merge advanced theoretical research with practical experience, combining deep theoretical knowledge, advanced linear and non-linear analyses and applied engineering expertise.

Our commitment to innovation and sustainability ensures that we deliver robust, reliable and efficient jacket solutions in challenging offshore environments.

We design the entire structure for offshore substations and all low-voltage installations.

The design team works in close collaboration with all project stakeholders to ensure that the design satisfies their requirements. We make use of state-of-the-art mechanical and electrical engineering (M&E) tools and have extensive experience in the design of electrical and mechanical systems.

We always develop structural and electrical design in 3D BIM, ensuring full coordination with all other disciplines and with special focus on accessibility, clash check and requirements for safe operation of the facility. We ensure compliance with the latest standards and regulations.

Our designs are openly shared and clearly communicated to ensure that everyone involved understands the process. This leads to better alignment and more effective outcomes.

With an extensive track record of designing floating foundations for offshore applications, we possess the skillset and expertise to design the next generation of floating foundations for offshore wind farms.

Our multidisciplinary design team has the experience to design all types of floating substructures: spar-buoys, tension-leg platforms (TLP) and semi-submersibles, including dynamic cables, anchors and moorings.

We combine simple early-phase calculation models for concept decisions. For detailed assessments, we use advanced coupled integrated load analysis (ILA) models with flexible floaters in coupled time-domain simulations.

We develop fast and reliable in-house software to push the boundaries of geotechnical and structural design. Our team of senior geotechnical experts, structural experts and engineers understand the importance of soil response, wave diffraction and concrete engineering. This includes pre-tensioning and overall optimum performance of a combined gravity-based structure (GBS) with tower and wind turbine generator (WTG). We perform value-add site investigations, mock-up tests and hydraulic testing to optimise design, lower costs (DEVEX, CAPEX and OPEX) and minimise risks during construction and lifetime.

Our multidisciplinary approach in offshore wind technology ensures we develop with a complete supply chain focus, including local content and harbour constraints. We conduct advanced analyses of all project stages, including site conditions, harbour and construction site reviews, and installation concepts. These are necessary in relation to site-specific tailored gravity-based designs and allow us to optimise the design, enhance installation stability and secure long-term performance.

Our combination of large-scale practical experience and technical innovation makes us a trusted advisor in the development and delivery of gravity-based foundations for offshore wind farms worldwide.

COWIND Digital Toolchain is a seamless design execution platform and serves as the backbone of our foundation design process. It enables us to deliver optimised design solutions, making offshore wind projects smarter, faster and more reliable.

We are a customer-centric and global engineering consultancy.

Our solutions are based on extensive knowledge and many years of expertise in offshore wind projects.