If all goes according to plan and no unforeseen eleventh-hour hiccups surface, the European Union will introduce legislation mandating the use of sustainable aviation fuel (SAF) for flights within and departing the bloc. A deal on the ReFuelEU Aviation proposal, agreed upon at the end of April after lengthy and often tense negotiations between the European Parliament and the Council of the EU, mandates that as of 2025, SAF must account for at least 2 percent of aviation fuels. This minimum increases every five years, to 6 percent in 2030, 20 percent in 2035, 34 percent in 2040, 42 percent in 2045, and 70 percent in 2050.
A specific proportion of the fuel mix—1.2 percent in 2030, 2 percent in 2032, 5 percent in 2035, and progressively reaching 35 percent in 2050—must consist of synthetic low-carbon aviation fuels such as e-fuels or e-SAF using power-to-liquid (PtL) technology.
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