Will Sustainable Aviation Fuel Ever Take Off?
The jet fuel that could replace kerosene is made from used cooking oil. It costs two to six times more, and there isn't enough of it.
This week's guest is Lauren Riley, Chief Sustainability Officer at United Airlines, which buys more sustainable aviation fuel than any other airline in America and still only gets 0.7% of its fuel that way.
She calls that a pacing problem: we know how to make the fuel, the money and the policy just move too slowly. The harder limit is the cooking oil itself. The world is not going to fry more food to fill jet tanks, and the three other ways of making the fuel…
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