期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 46, 期 7, 页码 5875-5890出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2020.11.014
关键词
Hydrogen economy; German road transport; Greenhouse gas mitigation; Air pollution; Fuel cell electric vehicle; Emission scenarios
资金
- Institute for Advanced Sustainability Studies (IASS), Potsdam, Germany - German Federal Ministry for Education and Research (BMBF)
- Brandenburg State Ministry for Science, Research and Culture (MWFK)
The study suggests that transitioning German road transport to hydrogen energy has the potential to significantly reduce emissions, improve air quality, and enhance energy security in the future.
Transitioning German road transport partially to hydrogen energy is among the possibilities being discussed to help meet national climate targets. This study investigates impacts of a hypothetical, complete transition from conventionally-fueled to hydrogen-powered German transport through representative scenarios. Our results show that German emissions change between -179 and +95 MtCO(2)eq annually, depending on the scenario, with renewable-powered electrolysis leading to the greatest emissions reduction, while electrolysis using the fossilintense current electricity mix leads to the greatest increase. German energy emissions of regulated pollutants decrease significantly, indicating the potential for simultaneous air quality improvements. Vehicular hydrogen demand is 1000 PJ annually, requiring 446-525 TWh for electrolysis, hydrogen transport and storage, which could be supplied by future German renewable generation, supporting the potential for CO2-free hydrogen traffic and increased energy security. Thus hydrogen-powered transport could contribute significantly to climate and air quality goals, warranting further research and political discussion about this possibility. (C) 2020 The Authors. Published by Elsevier Ltd on behalf of Hydrogen Energy Publications LLC.
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