Aviation | SAF
For this flight, a Boeing 787 will be filled with 50 tonnes of SAF. Two types are being used, with 88% derived from waste fats and the rest from the wastes of corn production in the US.
Following test and analysis, the flight was approved by UK regulator the Civil Aviation Authority earlier this month. A number of companies have been involved in the project including engine-maker Rolls-Royce and energy giant BP.
Dr Guy Gratton, associate professor of aviation and the environment at Cranfield University, said: "We can't produce a majority of our fuel requirements this way because we just don't have the feedstocks. And even if you do, these fuels are not true 'net zeros'."
He said the growing use of SAF had to be treated as "a stepping stone towards future, genuinely net zero technologies". "This might be e-fuels [which are manufactured using captured carbon dioxide or carbon monoxide, together with hydrogen], it might be hydrogen, it might be some technologies that we still really only have at the laboratory stage."
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