10 years of SATH technology innovation

At Saitec Offshore Technologies, our commitment to technological innovation and the advancement of floating wind energy is stronger than ever. Over the past decade, by conducting extensive wave basin tests and deploying a full-scale prototype, such as the DemoSATH project, we have rigorously validated our numerical models of our innovative SATH (Swinging Around Twin Hull) floating offshore wind technology— and today, we celebrate a key milestone: 10 tank test campaigns in 10 years.

Real-world validation for SATH floating wind innovation

While much of our engineering work is grounded in advanced numerical models, we believe that real-world testing is essential to bring innovative technologies to life. From the very beginning, our team recognized the importance of hydrodynamic testing to validate the behavior and reliability of SATH under a wide range of offshore conditions.
These tank test campaigns have allowed us to test and fine-tune the performance of the platform in key operational scenarios. The key experiments included:

• Regular and irregular wave tests with soft and full mooring configurations
• Towing test
• Force oscillations analysis
• Heave plate optimization through the testing of different configurations
• Wind and wave interaction under multi-directional sea states
• Wind turbine emergency stops

This continuous program of testing has significantly deepened our understanding of SATH’s response to complex maritime conditions and enhanced our ability to optimize it for future commercial deployment.

Latest test campaign at CEHIPAR focuses on next-gen turbine models

Our most recent tank test campaign was conducted at INTA- CEHIPAR (El Pardo Hydrodynamic Testing Center), one of Europe’s most advanced facilities for naval and offshore testing. This campaign focused on platform designed for 14 – 16 MW offshore wind turbines, reflecting the rapid upscaling of floating wind technology to meet global renewable energy demands.
Through this test, we explored critical performance indicators related to structural dynamics, stability, and environmental loading — data that is essential as we design for larger and more powerful turbines.

Bridging the gap between testing and real deployment

The insights gained through these test campaigns are not isolated. They build upon and complement our hands-on experience with DemoSATH, our full-scale 2MW demonstrator deployed off the coast of Spain. Together, these efforts provide a comprehensive, validated picture of how SATH technology performs from tank to ocean.
Through constant testing, learning, and innovation, we continue to pave the way for the future of sustainable offshore energy by enabling the commercial deployment of the cost-effective, reliable and scalable SATH floating wind concept.

Related posts:

Wrapping up WindEurope 2025 FLOWIND project. Advanced solutions for floating wind O&M DemoSATH: One year of success and innovation