The UK’s Offshore Renewable Energy (ORE) Catapult has signed an agreement with Danish engineering firm Bladena to test new reinforcement technology designed to extend the operational life of offshore wind turbine blades, the organisations said.
ORE Catapult said many early-generation offshore turbines are approaching the end of their planned service lives, prompting a need for technologies that can strengthen blade structures and limit fatigue.
Under the programme, the National Renewable Energy Centre in Blyth will carry out full-scale torsional load tests on an 88-metre blade. ORE Catapult described the trials as its first of this type and said they are understood to be an industry first.
Engineers will develop a bespoke test methodology to assess how Bladena’s reinforcement system affects blade behaviour under twisting forces. The aim is to support wider efforts to enhance turbine reliability and reduce long-term operational costs.
Matthew Hadden, chief blade engineer at ORE Catapult, said the project will help build understanding of ageing blade performance. “We’re excited to be carrying out this testing with colleagues from Bladena, to examine how we can aid learning of how to better monitor turbine blades as they age through their operational life,” he said. “With the hope of being able to inform the development of technological solutions across the sector.”
Bladena, a subsidiary of Renewable Energy Systems (RES), specialises in wind-turbine blade engineering and lifecycle solutions. Chief technology officer and founder, Find Molholt Jensen, said the collaboration marks a step forward for durability-focused design. “Testing our technology at ORE Catapult’s world-class facility is a significant milestone in extending turbine lifespans,” he said. “Stronger blades mean lower costs and more power, and by improving how they withstand stress over time, we can ensure more reliable performance in offshore environments.”
ORE Catapult said the initiative builds on research by Bladena and partners including the Technical University of Denmark and the EUDP, which found that even minor torsional loads can accelerate fatigue in composite materials and adhesive joints.
Testing is scheduled to begin in January 2026.
