
Dennis Krieg
Team Lead New Technologies & Logistics,
Uniper
Dennis studied business engineering at RWTH Aachen University, specializing in mechanical/energy engineering, and completed his doctorate on hydrogen infrastructure systems at Forschungszentrum Juelich in 2012. During this time, he also conducted research as an expert in an annex of the IEA on the topic of wind power electrolysis and during a research visit to Japan, funded by the DAAD, on new, dry-running hydrogen compressors. After his doctorate, he became a project engineer at the Air Liquide Group in Düsseldorf in the area of product & business development for hydrogen as an energy carrier, where, among other things, he helped to set up filling stations. When he moved to Hamm University of Applied Sciences, he became Professor of Energy Management and Head of the research department. During this time, he developed, among other things, a hybrid process for the highly efficient liquefaction of hydrogen. After returning to industry, Dennis joined the product development team at Westenergie AG (formerly innogy SE), E.ON's largest subsidiary, where he helped drive the new hydrogen business area for the entire E.ON Group as Senior Hydrogen Expert. The focus of his work was the economic supply of green hydrogen via on-site electrolysis and steam reforming for end customers, which included both technical innovations and new business models. In June 2021 Dennis joined Uniper SE where he leads the Technologies & Logistics team at Uniper Hydrogen GmbH. Main topics of the team are carriers for hydrogen (NH3, LH2, LOHC, synFuels), import/export terminals and the technical processing, e.g. ammonia cracking and hydrogen liquefaction. Both the evaluation of possible variants and the subsequent realization are part of the work.
Sessions
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23-Oct-2025Carbon Utilisation and Blue HydrogenBlue Hydrogen – Technical & Economic Booster for the Energy Transition