Siyi Hao

Siyi leads the work on current and future aerospace propulsion systems at Roland Berger. A large part of his work is on new technologies in the aerospace sector such as hydrogen and electric propulsion, and their commercial and system implications. Siyi holds a Masters degree in Engineering, Economics and Management from the University of Oxford.

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Presentation

Which is the most effective technology to decarbonize aviation: SAF, hydrogen or DACCS?

Several technologies have the potential to decarbonize aviation – sustainable aviation fuel (SAF), hydrogen, or even direct air capture with carbon storage (DACCS). However, this is not a straightforward choice: SAF faces challenges in affordability and scaling up, hydrogen requires significant changes to aircraft technologies and infrastructure, whilst DACCS is an out-of-sector solution that still relies on fossil fuels. Roland Berger and NLR team up to assess this problem holistically by analyzing the ecosystem economics and environmental lifecycle impacts of these technologies.