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Gewählte Master / Diploma Thesis:

Elisabeth Doberer (2019): Wasserstoff aus Überschussstrom Potenziale & Einsatzmöglichkeiten in Österreich.
Master / Diploma Thesis - Institut für Verfahrens- und Energietechnik (IVET), BOKU-Universität für Bodenkultur, pp 119. UB BOKU obvsg FullText

Data Source: ZID Abstracts
Situations occur in which production of electricity exceeds consumption and surplus of power arises. Fluctuating generation units mainly cause such conditions. As renewables continue to expand, the amount of unused electricity increases and stresses the grids. The conversion of surplus electricity into hydrogen by means of water electrolysis is a reasonable alternative to the curtailment of power plants. An essential part of this work was a hydrogen demand survey. The result of the survey is that large quantities of hydrogen are required in Austria. A complete substitution of this quantity, which today is almost only produced from natural gas, with eco-hydrogen by means of electrolysis would generate an additional demand for electricity. Such amount corresponds to about 1/5 of today's electricity consumption in Austria. An integrated generation of hydrogen from surplus electricity for this purpose is not feasible due to missing volumes of such kind of electricity. Nevertheless certain quantities could be used in industry. The second part of the work was the identification of further applications and potentials for hydrogen from surplus electricity. Other areas of application include mobility and the usage of hydrogen as a storage medium. Compared to the respective alternatives and current procedures in above two segments, it is obvious that hydrogen can be used as fuel in the future. Re-conversion of hydrogen allows power to be stored within the power system, but results in high conversion losses. The potentials and feasible applications of hydrogen from surplus electricity in Austria are versatile. There is already a high demand for conventionally produced hydrogen. That part could be replaced by hydrogen produced by electrolysis. Further new fields of applications also have potential for widespread usage.

Beurteilende(r): Pröll Tobias

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