For international air traffic, there is the possibility of developing and using synthetic electricity- and bio-based fuels. It should always be critically questioned whether these fuels actually contribute positively to climate protection. The life cycle analysis method is an important and helpful tool here. IZNE is monitoring current technical developments in this field with regard to their ecological, economic and social sustainability.
Another option for making flying more climate-friendly is the possibility of climate-optimised flight route planning, taking into account carbon dioxide emissions and contrail formation. This allows a massive reduction of the climate impact of aircraft, up to a reversal of the effect from a net-warming to a net-cooling effect. The feasibility of such environmentally optimised flight route planning was demonstrated within the framework of the BMBF funding programme klimazwei in a cooperation between DLR, Lufthansa, DWD and German Air Traffic Control and has since been confirmed by further studies.
Electromobility and sector coupling
For regional and inner-city automobility, the use of electrochemical storage and thus the expansion of electromobility is an important option. Realising this sustainably is accordingly one of the social challenges in the research strategy of the state of NRW and a declared goal of the city of Bonn and the Rhein-Sieg district. The IZNE supports the transformation of the city region towards more sustainable mobility within the framework of joint inter- and transdisciplinary research projects anchored in the region.
Another important building block for the transport turnaround is the use of hydrogen as an energy carrier. Hydrogen as a central component of sector coupling enables efficient integration of the electricity, industrial and transport sectors. H-BRS is a member of the regional hydrogen network HyCologne and actively supports the Rhineland hydrogen region.