Sustainable Aviation Fuel Bill (First sitting)

Debate between Paul Kohler and Alice Macdonald

Committee stage
Tuesday 15th July 2025 Public Bill Committees

[Alice Macdonald]

Q I want to pick up on the monitoring point. For example, say a consumer feels that they have had to pay a little more for a flight that is more environmentally friendly; how soon would you be able to quantify whether that mechanism had had an effect? In a year’s time, would you be able to say that it has meant that the carbon has been decreased by x amount?

Jonathon Counsell: Definitely. All SAF has to be independently assessed for its life cycle emission savings. Before we purchased it, we have to prove that, and as I said, get an independent authority to test the life cycle emissions. We will be able to declare publicly, of any SAF that we use, the independent assessment of its life cycle savings.

Lahiru Ranasinghe: If you look at the mechanics of how it works for meeting the mandate, there is a minimum threshold that we set when buying compliant fuel. In this case, compliant fuel is kerosene: fossil-based kerosene blended with SAF. When we pay for the supply, we get the product transfer documents, which have the sustainability criteria associated with that specific batch of SAF. At that point we can very accurately calculate the emissions saving. In terms of planning, we have to set a range, because there is some variation depending on the pathway and the SAF provided. Building on what my colleagues here have said, there is an opportunity for the UK both in home-grown production and up and down the value chain in the development and export of the technology and the financing and trading of SAF in the longer term. We have what is seen as a gold standard for sustainability criteria, especially going to 2G SAF and the conversion of waste into usable fuels, which addresses multiple issues at the same time and is something that we can export to the rest of the world.

[Mr Kohler]

Q Mr Counsell, I would like to quiz you on your first point. Given the premium on SAF, the mandate is going to cost far more than the RCM?

Jonathon Counsell: Yes.