Fraunhofer Institute for Mechanics of Materials IWMThe sea offers ideal conditions for generating renewable electricity. The direct production of green hydrogen in offshore plants from wind energy without a grid connection can significantly reduce costs compared to onshore production. The H2Mare flagship project researched the offshore production of green hydrogen and other power-to-X products.
H2Mare: Offshore Technologies—H2Wind research consortium
Completed research project
Project description
The H2Mare flagship project aimed to establish a completely new type of plant at sea—a solution that optimally integrated an electrolyzer for the direct conversion of electrical power into an offshore wind turbine. In addition, further offshore power-to-X processes were investigated.
Fraunhofer IWM subproject: H2Wind—Self-sufficient offshore H2 electrolysis
As part of the H2Mare H2Wind subproject, Fraunhofer IWM developed and evaluated design criteria for assessing materials and components for hydrogen tube storage. Alternative design guidelines were reviewed and expanded to include the stress case “hydrogen,” with the aim of evaluating the influence of hydrogen on materials and components during storage and retrieval over long periods of time. A particular focus was placed on the evaluation of weld seams, which, as geometric and metallurgical notches, showed increased susceptibility to the effects of hydrogen compared to the base materials. The project results can be used to reliably assess the suitability of components for hydrogen applications and ensure accident-free and long-term use in a real H2 storage infrastructure.
Transfer of project results to R&D services provided by Fraunhofer IWM
- Design of H2 tube storage systems
- Evaluation of the safety and service life of welds in contact with hydrogen
Funding information
