Bio Market Insights Sustainable Marine Presents Tidal Turbines That Can Last 20 Years


Scottish tidal company Sustainable Marine announced this week that its new tidal turbine rotors can last up to two decades. The announcement follows a series of tests carried out at a marine energy center at the National University of Ireland in Galway, which is home to the largest such laboratory in Ireland.

The energy company has teamed up with the school’s MaREI center, as well as with the German engineering partner SCHOTTEL Hydro for the creation and testing of its “ultra-durable” turbine rotors. The new technology is being developed as part of the larger Marinet2 project, a Horizon 2020 program aimed at identifying and testing offshore renewable energy technologies.

The rotors – which come in two sizes of 6.3 and 4m – were tested at the Irish facility to simulate 20 years of wear, examining how the rotors react to varying stress and vibration.

“This international collaboration, through our German engineering partner SCHOTTEL Hydro, provides a solid indication of our ambitions to continue raising the bar and advancing the field of tidal turbine technology,” said Ralf Starzmann, Vice President of Business Development at Sustainable Marine in a press release. Release. “In order to push the boundaries, it is essential that we challenge our solutions in state-of-the-art facilities capable of pushing the limits of our technology. ”

“Accelerated life testing is an essential process that allows us to quickly accelerate normal conditions, to better understand how structures will react over time,” he added. “Our new 4m rotor blade has proven to be ‘ultra-durable’, providing complete confidence in design and structural integrity. Reliability is a key factor in the development of tidal turbines, especially as we are now moving towards our first commercial projects.

The company is developing the world’s first floating tidal power system, located in the Bay of Fundy, Nova Scotia. Their rotors are made of carbon fiber, and the company claims that the “passive-adaptive” quality of the materials reduces structural loads on the turbines, allowing more cost effective components to be used.