Within the Flexnode Plus project the long-term degradation characteristics of a proton exchange membrane (PEM) electrolyzer (5.5 kW, AC, 1 Nm3/h H2) and fuel cell (1.0 kW, DC, 0.9 Nm3/h) was experimentally tested. The electrolyzer unit was operated at various loads and pressures for approximately 750 hours in total, while the fuel cell was operated at a constant load of 1 Ω resistance for approximately 1120 hours in total. The efficiency of the hydrogen production in the electrolyzer and the electricity production in the fuel cell was expressed using the hourly average system efficiency and average cell efficiency. Inorder to predict the state of health and remaining lifetime of the electrolyzer cell and fuel cell, the decay of the cell voltage over time was monitored and the direct mapping from aging data method was used.The electrolyzer cell showed a stable cell voltage and cell efficiency in the studied time period, with an average cell voltage decay rate of 0.5 μV/h. The average cell voltage of the fuel cell dropped with a rate of 2 μV/h during the studied time period.
Hydrogen (H2) is a key element in the Dutch energy transition, considered a sources of flexibility to balance the variable renewable energy sources, facilitating its integration into the energy system. But also as an energy carrier. Both the gas and electricity transmission operators (TSO) have the vision to interconnect their networks with H2, by distributing the green H2 produced with offshore electrolysers into high pressure gas pipelines to relive the overload electric network. The planned compressed H2 pipelines cross the north of North-Holland region, offering a backbone for a H2 economy. Furthermore, at regional level there are already a big number of privet-public H2 developments, among them the DuWaAl, which is a H2 production-demand chain, consists of 1) An H2 mill, 2) 5 filling stations in the region and 3) a large fleet of trucks and other users. Because of these developments, the North-Holland region needs a better insight into the position that H2 could fulfil in the local energy system to contribute to the energy transition. The aim of this research is to analyse these H2 economy, from the emergent to settled, by identifying early and potential producer- consumer, considering the future infrastructure requirements, and exploring economy-environmental impacts of different supply paths
Dutch-German Collaboration on Hydrogen for Energy Transition Policymakers and Authorities from the Netherlands and Germany met at Euregio Rhine-Waal in Kleve, Germany earlier this month, to advance the role of hydrogen in building a sustainable future. Prof. Sadegh Seddighi from HAN University of Applied Sciences highlighted that hydrogen production is now mature and ready for full commercialization. The discussions focused on unlocking new markets and improving the economic viability of hydrogen applications across industries. ???? Key takeaway: Regional collaboration is essential to fully harness hydrogen's potential for a greener, more connected future. ➡️ Next steps: Strengthen partnerships through pilot projects and joint research, while exploring practical applications to accelerate hydrogen's adoption and market growth.
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In the course of the “energie transitie” hydrogen is likely to become a very important energy carrier. The production of hydrogen (and oxygen) by water electrolysis using electricity from sun or wind is the only sustainable option. Water electrolysis is a well-developed technique, however the production costs of hydrogen by electrolysis are still more expensive than the conventional (not sustainable) production by steam reforming. One challenge towards the large scale application of water electrolysis is the fabrication of stable and cheap (noble metal free) electrodes. In this project we propose to develop fabrication methods for working electrodes and membrane electrode stack (MEAs) that can be used to implement new (noble metal free) electrocatalysts in water electrolysers.
Production of hydrogen from renewable power sources requires dynamic operation of electrolysers. A dedicated research activity is proposed to explore and study the impact of variable operation on electrolyser performance and the electricity grid. In addition optimal control strategies will be developed with the goal to improve overall operational efficiency. It is expected that by applying advanced control strategies 2 to 3% operational efficiency gain can be achieved. The research proposed in this project is aimed to explore, validate and demonstrate this potential efficiency gain on the PEM unit.
Green Hydra main scope is to improve policies from 10 regions of different types and levels - national, regional or local - to establish support initiatives and measures for opening the access of SMEs to green H2 development projects, from research programmes to development strategies, awareness-raising schemes, and pilot investments especially focused on involvement of SMEs across the whole hydrogen value chain, including R&D, engineering, manufacturing, consultancy, human resources upskilling and design.The specifc objectives are:- probing the conditions for using green H2 in the key sectors involving SMEs- identifying the potential key factors to activate the involvement of SMEs around the green H2 value chain- supporting for the creation of a production chain involving SMEs- developing new skills, knowledge and communication for green H2 for SMEs- easing SMEs access to fi nance in the fi eld of green H2- upscaling innovations for SMEs related to green H2 products and services
