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Item type:Publication, Access status: without files , Ressourcen und ihre Mobilisierung(DBFZ, 2022-01-21); ; ; ; Resource availability is the first element of the renewable energy supply chain for the transport sector. The biogenic resources suitable for producing biofuels can be classified based on the regulatory context and their physical and chemical properties. The latter mainly concerns their suitability with regard to the different production processes. In addition to renewable electricity, the main feedstocks of renewable fuels of non-biogenic origin are primarily water (for producing green hydrogen by electrolysis) and a carbon source (usually CO2) which can be processed further into fuels that contain carbon. Up to now, the production of bioethanol has been based almost exclusively on primary agricultural products, although there are already clear signs of efforts to expand the range of raw materials to include lignocellulose-based by-products such as straw. FAME and HVO diesel production also predominantly uses primary products such as rapeseed, soybean, or palm oil; however, used cooking oils (UCO) already account for 20 % of the resources and, increasingly, alternative resources such as tall oil or residues from palm oil production are being used. Around 1.4 EJ of electricity are used in the transport sector worldwide, which amounts to a share of just over 1 %. Of this, about 25 % comes from renewable sources. Electricity-based fuels have yet to play a significant role, however demand and support for them are on the rise. Quantifying the theoretical, technical, economic, and, above all, the implementation potential of biogenic and other renewable fuels at the international level is still associated with a considerable degree of uncertainty and range. The implementation potential for biogenic resources in the transport sector is believed to be rather low to limited overall. For electricity-based fuels, it is believed to be limited up to rather high. Research and development are required in order to significantly improve the state of knowledge on the status quo and the prospective developments of renewable resources so that their contribution to a sustainable development in the transport sector can be better evaluated and better managed in terms of a biomass strategy.Publicationtype: Book Part66