Steven Gronau

Who are you and what is your research topic?
My name is Steven Gronau, post-doctoral researcher at the Institute for Environmental Economics and World Trade at Leibniz University Hannover and principal investigator of a SE²A Junior Research Project (JRP). I studied and did my PhD in the field of economics. My research focuses on macroeconomic modeling applications related to current trends and developments. In our JRP we deal with the macroeconomic impact of hydrogen utilization in aviation. For this purpose, we are designing a simulation model with a focus on Germany.

Which research question are you working on?
Our JRP is "Hydrogen in sustainable aviation: macroeconomic impacts and state intervention”. We focus on two research questions: (1) What are the macroeconomic impacts of hydrogen-powered aviation compared to continuing conventional air transport? (2) What are the effects of state interventions on the hydrogen market? Here we are interested in price policy. As a result, we will investigate macroeconomic effects (e.g., gross domestic product, employment situation, hydrogen-kerosene substitutions, H2 imports, price dynamics, and sector implications).

What inspires you about your research?
Working on a relevant and innovative topic. To accompany the research process from the idea to publication and science communication. Enjoy what you do, so I like to deal with macroeconomic simulation models. Generating scientific results with potential economic and political relevance. Teamwork and the diversified daily work routine.

Why is your topic relevant for future aviation?
Germany needs alternatives to fossil fuels to realize its climate targets 2050. "Green" hydrogen (H2) represents a promising pathway, as H2 as a fuel contains no carbon. Hydrogen-powered aviation is thus an option to decarbonize the sector. Along with technical feasibility analyses, an assessment of macroeconomic implications is essential: the introduction of H2 implies extensive economy-wide sectoral linkages and involves various market actors along the entire value chain from generation to utilization. In addition, supportive policy frameworks are needed, as H2 in end-use applications currently has a much higher price than conventional jet fuel.

What is special about participating in the interdisciplinary research network SE²A?
A special feature is the exchange with colleagues from completely different disciplines. Project-related data, methodology and results are critically examined from a different (than the own) point of view. In this way, science can acquire greater practical relevance. An interdisciplinary research network makes it possible to examine a topic in a more holistic way. Personally, it is a great opportunity for junior and senior researchers to expand and strengthen their own network. New/further research ideas can also develop from this.