In the effort to achieve carbon neutral growth on the path to a zero emission future in aviation IATA outlined its “Technology Roadmap for Environmentally Sustainable Aviation” (TERESA) initiative bringing together manufacturers, scientists, government agencies, infrastructure service providers and airlines. Under this initiative the German Aerospace Center (DLR) and the Aerospace System Design Laboratory (ASDL) of Georgia Tech conducted the screening, description, selection, modelling and assessment of appropriate technologies. Furthermore the application of the technologies into reference aircraft was on their particular mission was modelled. Following the aircraft manufacturers announcements to postpone all new developments until after 2020 the model's technology database is revised. Furthermore the scope of TERESA is expanded with a world eet forecast model. Therefore the model accounts for the e ects of CO₂ reduction potential via technology introduction on world eet level.