Sustainable Marine First major step in the EvoFoil collaboration

Sustainable Marine has recorded the first major milestone of the Canadian-German EvoFoil project after completing extreme load testing on a new 4.3m tidal turbine foil (blade). The marine solutions provider is leading the EvoFoil project in partnership with German organizations M&D Composites Technology and Leibniz Universität Hannover Institute of Production Engineering and Machine Tools. It aims to provide a series of design innovations to optimize the performance of tidal turbine foils while reducing production and operating costs.

In the latest developments, Sustainable Marine’s new 4.3m foil has undergone a comprehensive ‘static flex test campaign’ to demonstrate its future durability in some of the harshest tidal environments on the planet. The new foil has been specially designed to withstand the conditions of the Bay of Fundy’s Minas Passage, located in Nova Scotia, Canada. The site will host the company’s Pempa’q project to showcase the world’s first floating tidal power grid. The results show continued evolution with an increase in energy efficiency of 7pc, compared to previous 4m rotor designs.

“The successful completion of the extreme load tests marks an important milestone demonstrating the reliability of our new sheet design, which is a key factor in the development of tidal turbines”, said Ralf Starzmann, power systems manager at Sustainable Marine. “Working closely with our partners, we have developed a bespoke test rig to meet the requirements of our new 4.3m foil and prove that it can handle loads of up to 3.8t (equivalent to four elders VW beetles). This verifies the short-term strength of the new sheet design against the extreme loads it will experience at the FORCE (Fundy Ocean Research Center for Energy) test site in Minas Passage, where our tidal platform will soon be. located.”

Testing took place at M&D Composites facilities in Friedeburg, Germany, allowing direct feedback to the production team. The tests also proved the passive adaptive pitch properties of the new design – increasing the power generation potential.

“The EvoFoil project involves an extensive campaign of field and lab testing, to incorporate Sustainable Marine’s foil design, including tip geometry and overall composition,” said Tim Markwald, managing director of M&D Composites Technology. “One of M&D Composites’ main goals is to optimize the manufacturing process for turbine sheets and design a new generation of tools to reduce manufacturing time and costs. By increasing energy efficiency and reducing production costs, we can help reduce the overall cost of energy. “

“During the last lab test campaign, we also monitored sheet deformation and fiber deformations,” said Carsten Schmidt Leibniz Universität Hannover Head of Research Group High Performance Production of CFRP-Structures. “This is helping to inform broader work to develop a new ‘multi-layered’ material that will improve the mechanical behavior of the sheet and help counter different loads. We have introduced a new fiber optic strain measurement system to improve the process monitoring, providing deformation information with very high spatial and temporal resolution over the entire surface of the foils.We now have unique data that will be used to further improve the design concept.

Sustainable Marine receives advisory services and up to $578,244 in research and development funding from the National Research Council of Canada Industrial Research Assistance Program (NRC IRAP) for the two-year project.

In addition, the German partners in this project receive financial support from the German Federal Ministry for Economic Affairs and Energy (BMWi) through the central innovation program for SMEs (ZIM).

Sustainable Navy

Sustainable Marine is a provider of innovative solutions enabling the development of a sustainable blue economy. The company has developed several pioneering products, including PLAT-I, a floating tidal energy platform that provides predictable, clean energy to coastal communities. It also offers a range of unique anchoring solutions, supplied by the specialist Swift Anchors team, which provide fast, safe and precise mooring or securing of support structures for renewable energy systems and other infrastructure in high-energy marine environments with harsh geotechnical conditions. With a talented team of engineers and innovators operating in the UK, Germany, Portugal and Canada, Sustainable Marine provides turnkey project management with world-class expertise in naval architecture, assessment and selection. of sites, initial engineering and design, mooring and station keeping, design and construction of floating structures, hydrokinetic systems and the development of solutions for logistics, installation, operation, environmental monitoring and follow-up performs. To find out more visit

Source and top image: Energize Media