Krško, Ján2023-11-212023-11-2120231337-8996http://drepo.uniza.sk/handle/hdluniza/986The subject of the paper is an assessment of the possible replacement of the original diesel hydrodynamic drive of the 861 series units with hydrogen fuel cell propulsion, a description of the original traction chain, the design of the new components including their spatial arrangement, mass balance and a summary of the advantages, disadvantages of the conversion, including an evaluation of the problematic nodes and solutions.skhttp://creativecommons.org/licenses/by/4.0/fuel cell propulsionDMU 861hydrogenArticlehttps://doi.org/10.26552/tech.C.2023.4.4