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The Cost Dynamics of Hydrogen Supply in Future Energy systems - A Techno-economic Study

Abstract

This work aims to investigate the time-resolved cost of electrolytic hydrogen in a future climate-neutral electricity system with high shares of variable renewable electricity generation in which hydrogen is used in the industry and transport sectors, as well as for time-shifting electricity generation. The work applies a techno-economic optimization model, which incorporates both exogenous (industry and transport) and endogenous (time-shifting of electricity generation) hydrogen demands, to elucidate the parameters that affect the cost of hydrogen. The results highlight that several parameters influence the cost of hydrogen. The strongest influential parameter is the cost of electricity. Also important are cost-optimal dimensioning of the electrolyzer and hydrogen storage capacities, as these capacities during certain periods limit hydrogen production, thereby setting the marginal cost of hydrogen. Another decisive factor is the nature of the hydrogen demand, whereby flexibility in the hydrogen demand can reduce the cost of supplying hydrogen, given that the demand can be shifted in time. In addition, the modeling shows that time-shifting electricity generation via hydrogen production, with subsequent reconversion back to electricity, plays an important in the climate-neutral electricity system investigated, decreasing the average electricity cost by 2%–16%. Furthermore, as expected, the results show that the cost of hydrogen from an off-grid, island-mode-operated industry is more expensive than the cost of hydrogen from all scenarios with a fully interconnected electricity system.

Funding source: This project, the Zero Emission Hydrogen Turbine Center (ZEHTC), has received funding through the framework of the joint programming initiative ERA-Net Smart Energy Systems’ focus initiative on Integrated, Regional Energy Systems, with support from the European Union’s Horizon 2020 research and innovation program under grant agreement no. 775970.
Related subjects: Policy & Socio-Economics
Countries: Sweden
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/content/journal4078
2022-11-04
2022-11-28
http://instance.metastore.ingenta.com/content/journal4078
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