Synthetic fuels based on electricity, water, and carbon dioxide (CO2) may be necessary to cover the fuel demand in a sustainable transport sector based on renewable energy sources. The aim of this paper is to compare hydrogen, methane, methanol and diesel produced in this way. The main parameters for the analysis are well to wheel energy efficiency and costs, and the fuels are analysed in a Swedish context. The results indicate that methane and diesel could have the potential to be cost competitive in the near term, at least if common incentivesfor renewable transportation fuels are applied. Moreover, that hydrogen is the best option in terms of well to wheel energy efficiency, and that it in the longer term also may be cost competitive to the other fuels.
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