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Impact of Zero-Emission Aviation at Airports

Christoph Struempfel-Seifert, M.Sc.

Head of airsight’s Sustainable Aviation department 

Mr Struempfel-Seifert is an expert for sustainable aviation and is responsible for all project tasks related to sustainable aviation and environmental protection at airports. Furthermore, he is an appreciated trainer, sharing his knowledge and practical experience with other national and international aviation experts.

After graduating as Master of Science in Aeronautics and Astronautics from the Technical University of Berlin, he worked as a research assistant and lecturer at the Chair of Flight Guidance and Air Transport at the TU Berlin. In his scientific career, he focused on modelling aircraft noise and emissions, UAS noise measurements and calculation as well as the optimization of flight procedures with respect to environmental and eco-efficiency targets.

For airsight, he has conducted several environmental assessments, noise and emissions studies for various airports in Germany, Luxembourg, United Arab Emirates, Romania and the Philippines. As a recognized SME for aircraft noise modeling, he has extensive experience with the FAA's Aviation Environmental Design Tool (AEDT).

A second major focus of his work is to support international airports on their decarbonization journey with detailed studies on renewable energy, in particular the implementation of solar energy systems, including Singapore-Changi, Berlin, Cologne, Düsseldorf, Stuttgart and various other airports. His team is helping airports meet the challenges of the future through new, sustainable technologies, such as sustainable aircraft taxiing and e-GSE implementation. 

Ignacio Puebla Millán, M.Sc.

Mr. Ignacio Puebla Millán is an aerospace engineer specializing in sustainable aviation with experience in national and international projects. He studied Aeronautics and Astronautics at the Technical University of Madrid and Munich and completed a master’s degree with a thesis focused on airport planning at Politecnico di Milano in Milan. 

In his current role at airsight, Ignacio supports and leads various sustainability and airport planning projects, leveraging his international experience with clients in Singapore, Toronto, Dubai, Cologne, Düsseldorf, Berlin, and the Philippines. His areas of expertise include noise assessment, glint and glare analysis, sustainable taxiing, decarbonization and aerodrome design. 

He is also experienced in using the FAA's Aviation Environmental Design Tool (AEDT) for conducting noise assessments on a global scale. 

Felix Gross, M. Sc.

Mr. Felix Gross is an aerospace engineer specializing in the design of innovative aircraft concepts and airside airport planning. His particular expertise lies in the integration of emerging technologies—especially electric vertical take-off and landing aircraft (eVTOLs)—into existing airspace structures and infrastructures such as vertiports. He places strong emphasis on sustainable propulsion systems, including fully electric, hydrogen-based, and hybrid technologies.  

He completed his master’s thesis in collaboration with the German Aerospace Center (DLR), where he developed a practical evaluation model for the technical and operational integration of vertiports in urban environments. 

In his current role at airsight, Felix supports international airports in their efforts to decarbonize. He conducts in-depth studies on the implementation of renewable energy systems, particularly solar power installations—at airports such as Singapore Changi, Berlin, Cologne, Düsseldorf, and Stuttgart. Additionally, he is pursuing the path of aviation auditor, aligned with the regulatory frameworks of EASA, ICAO, and IATA.  

Through his work, Felix aims to bridge technological innovation with ecological responsibility—for example, by promoting sustainable taxiing and the deployment of electric ground support equipment (e-GSE)—actively contributing to a greener, future-ready aviation sector.