Self-sufficient Offshore H2 Electrolysis

Research Project H2Mare - H2Wind

Offshore wind turbines generate significantly more electricity than their onshore counterparts, and they do so more consistently. The H2Mare hydrogen flagship project aims to harness this potential by using renewable electricity directly at sea to produce hydrogen and hydrogen-based products.

The future partners want to integrate the water electrolyzer directly into a wind turbine, thereby providing innovative technologies for producing green hydrogen offshore. The direct coupling of wind turbines and electrolysers is intended to minimise the costs of hydrogen production. Without a connection to the power grid, infrastructure costs can be significantly reduced. In addition, decoupling electrolysis from the grid means less strain on local grid structures. Another advantage of hydrogen production at sea is that there is far more potential area available for wind energy generation than on land.

Summary

Development of the fundamentals for the world's first direct offshore hydrogen production, fundamentals for electrolysis technology for offshore operation, possibilities for storing and transporting hydrogen on land, and optimal coordination of subsystems to increase the efficiency of the overall system.

Research topics IMWS

Optimization of cell and stack development at the microstructural level and aging phenomena under offshore conditions, as well as the development of a research stack to derive electrolyzer behavior at industrial stack size, including operando analytics

Focus

Investigation of the aging of electrolyzer components under offshore conditions, identification of relevant defects under operating conditions.

Methods

SEM, TEM, EDX, CT, XRD, XPS, ToF-SIMS, IR spectroscopy, magnetic field measurement, lock-in thermography, LIBS.

Project Profile

Project title H2Giga - H2Wind
Duration 04/2021 - 03/2025
Funding BMBF
Funding volume 2.053.735 €
Cooperation partners Siemens Gamesa, Siemens Energy, RWE, Reuther, fumatech, Salzgitter Mannesmann Forschung, Fraunhofer IMWS, IWES, IWM, IWU, ICT, IGB; DECHEMA, KIT IMVT, uvm.
Project Manager
at IMWS
Volker Naumann

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Volker Naumann

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Dr. Volker Naumann

Group Manager »Defect Diagnostics« | Group »Materials Diagnostics for H2 Technologies«

Fraunhofer Center for Silicon Photovoltaics CSP
Otto-Eißfeldt-Straße 12
06120 Halle (Saale), Germany

Phone +49 345 5589-5113