Wasserstoff in einer klimaneutralen Gesellschaft: Gegenüberstellung von zukünftigem Bedarf und technischen und wirtschaftlichen Potentialen verschiedener grüner Wasserstofferzeugungstechnologien

Translated title of the contribution: Hydrogen in a climate neutral society: Comparison of future demands and technical and economic potentials of different green hydrogen generation technologies

David Ruprecht

Research output: ThesisMaster's Thesis

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Abstract

For reaching the goals set by the Paris Agreement to limit global warming to 1.5-2°C, it is necessary to establish a green society. Therefore, a huge expansion of the usage of renewable energies as well as an electrification of all kinds of applications must take place. Unfortunately, some applications will be difficult or impossible to electrify. In these cases, green hydrogen and hydrogen-derived fuels will be able to play an important part in the decarbonization of our society. Thus, it is the aim of this work to determine the future need of hydrogen and hydrogen-derived fuels in Germany, which is picked as an example due to the good data situation. Taking a look at the sectors industry, mobility, heat and energy the demand shall be determined for all kind of end uses. This leads to a minimum and a maximum range of the future usage of hydrogen and hydrogen-derived fuels in a climate neutral Germany. Green hydrogen is produced by electrolysis of water using electrical energy from renewable sources. Therefore, the three relevant electrolysis technologies alkaline electrolysis, PEM-electrolysis and high temperature electrolysis shall be investigated. It is particularly interesting whether the availability of critical resources or the manufacturing of single components could limit the building up of these technologies on a large scale. Furthermore, current and future investment costs will be taken to account. Besides the consideration of biogenic ways of hydrogen production, the topic of blue hydrogen from fossil fuels with the implementation of carbon capture and storage will be discussed. Regarding this topic, the question whether blue hydrogen can be climate neutral shall be answered. Finally, the expected capacities of domestic green hydrogen production in Germany will be estimated leading to the required amount of hydrogen imports. The future prime costs for green, blue, and grey hydrogen can answer the question, when green domestic hydrogen produced in Central Europe and green import hydrogen will be economically feasible. In addition, it can be determined if blue hydrogen could possibly be an interesting alternative.
Translated title of the contributionHydrogen in a climate neutral society: Comparison of future demands and technical and economic potentials of different green hydrogen generation technologies
Original languageGerman
QualificationDipl.-Ing.
Awarding Institution
  • Montanuniversität
Supervisors/Advisors
  • Bucher, Edith, Supervisor (internal)
Award date17 Dec 2021
Publication statusPublished - 2021

Bibliographical note

no embargo

Keywords

  • hydrogen
  • electrolyis

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