Sustainable Aviation Fuel Bill

Debate between Lord Moylan and Lord Ravensdale

Committee stage
Wednesday 10th December 2025 Lords Chamber

[Lord Moylan (Con)]

We are all agreed that we should be talking about contract length, but my amendment is the only one that refers to it. That is the point that I am trying to make.

The noble Lord, Lord Ravensdale, in respect of competition, says that there must be at least an opening in the future for these revenue certainty mechanism contracts to be awarded competitively. He seeks to put this in the Bill now and appeared to say that, if this is not done now, through a device such as that which he is proposing, there would not be in future an opportunity for competitive procurement. If I have misrepresented him, I will give way and be corrected—I see that he is about to rise, so I might as well complete the point before he corrects me. My understanding is that there is nothing to prevent competitive procurement taking place from day one under these arrangements. Therefore, it is not necessary to put in place an arrangement to secure it. I am open to being corrected on all hands about this, because I am groping my way in the dark through this thicket.

[Lord Ravensdale (CB)]

I agree with what the noble Lord has said. The Minister provided the clarification at Second Reading that there is nothing in the Bill that prevents competition. However, for consistency with the other legislation that I outlined that has such direction on similar competitive processes in the energy Acts, and for clarity on the strategy, it would be beneficial to have that process set out in the Bill.

[Lord Moylan (Con)]

I am grateful to the noble Lord for explaining that. I am glad we are broadly ad idem, but he helps me to my third point.

The assumption by the noble Lord, Lord Ravensdale, appears to be that the procurement of all future SAF, including non-HEFA SAF and potentially at some stage power to liquid, will have to depend upon or be supported by a revenue certainty mechanism, or at least some form of subsidy or support from the state. That appears to be the assumption. I wholly deprecate that assumption. It is appalling that we should embark upon this project with a view to a regime of perpetual subsidies. If SAF is not rapidly producible on a commercial basis in this country then, as I shall come to in other amendments, the whole project should be reconsidered at this stage.

However, I am comforted in thinking that the Government do not envisage perpetual subsidy by my reading of Clause 1(7) and (8). These are the subsections that I referred to before, so I will not read them out again, but why would the Government put in place what is, in effect, a sunset clause if they envisaged a need for perpetual subsidy? The Minister may want to confirm this, but subsections (7) and (8) taken together are a sunset clause. At the end of 10 or possibly 15 years, no more contracts can be awarded without further primary legislation. There is a degree of confusion, which I may have participated in, concerning what we are discussing. We are giving the Minister the opportunity to bring a blast of fresh air to clear the fog and explain it all to us, so that we know what we are talking about, because up to now I am not entirely sure that we all do.

My Amendment 2 has been explained very well by the noble Baroness, Lady Pidgeon. I do not need to elaborate on what it says, but I have not yet given any rationale for why it should commend itself to the Committee. Amendment 2 seeks to limit the length of contracts. The reason is very simple. This Bill is a large slice of corporate welfare. Having given to the industry, through the SAF mandate which we approved last year, a guarantee of uptake of SAF so that you know that your product is going to have to be bought, this is not enough for them, and we are now going to give them, in addition, a guaranteed price. That is what they are demanding.

I do not blame them for demanding that. Let us have guaranteed demand and a guaranteed price—that is a very pretty place to be in. Let us transfer all the risk somewhere else. Who is going to pay that guaranteed price? Not the Government, because it is not a subsidy. They have discovered from the electricity market the contract for difference, which the noble Lord, Lord Ravensdale, has referred to as a model—a structure which has given us the highest electricity prices in the civilised world. This points to the cost of SAF falling on the airlines and, potentially and ultimately, on the passenger. We will come to this later, but the Government have assessed what that might mean in pounds per ticket. That is the subject of a later amendment which I will not trouble your Lordships with now.

Recognising the large element of corporate welfare in the Bill and the need to get away from that and to incentivise competition, I suggest that there should be some basis for limiting the contract, and therefore the benefits that accrue to the producers of SAF. I am grateful to my noble friend Lord Harper for supporting this. I have suggested 10 years, which is of course an arbitrary number—it might be six years, it might be seven years, or it might be eight years. I have also suggested including a break clause, which I put at five years, so that if the Government saw that this was all going well and that the thing was becoming commercial, they could walk away—which must be their ambition. I put that break clause at five years, which is an equally arbitrary number. If the Minister agreed on the principle, I am sure that he and I could sit down and rapidly agree a maximum length of contract and an appropriate term for the break clause.

It is in that direction that we should be looking if we are not to burden young people. There are not so many young people in the Committee this evening. Many of us are getting to the point where our best flying days are behind us, but when you look to young people who perhaps work in other parts of the House and say, “You are going to be paying for this for the next 20 years. You and your wives and children, and even potentially your grandchildren, are going to be paying for this slice of corporate welfare, so if we don’t get it right the burden falls on you”, and one thinks about that, then of course one is moved very strongly, and is surely moved in the direction of supporting my Amendment 2.

--- Later in debate ---

[Lord Ravensdale (CB)]

My Lords, as the noble Lord, Lord Moylan, referred to earlier, I think this wraps up a number of points in previous groups. It is a good point at which to have this debate about what actually qualifies for support under the revenue certainty mechanism. First, I take the opportunity to congratulate the noble Earl, Lord Russell, and the noble Lord, Lord Addington, on their peerages. It is absolutely brilliant news, and I am really pleased for them.

There are two parts to this amendment, and I would like to deal with them in reverse order. At Second Reading, I asked a question on the eligibility of nuclear energy or nuclear-derived SAF. The Minister said:

“SAF produced using nuclear energy is and will be eligible for the SAF mandate”.—[Official Report, 20/11/25; col. 990.]


I noted that he said the SAF mandate and not the revenue certainty mechanism. What I am really after from the Minister is explicit clarity that nuclear-derived fuels are within the scope of the revenue certainty mechanism, and perhaps some commentary on how this flows through the legislation.

The reason for needing this clarity is that the legislative route is a little convoluted. Clause 16 defines sustainable aviation fuel as

“aviation fuel that is renewable transport fuel”.

Renewable transport fuel is defined in the same clause as

“anything that is (or is treated as) renewable transport fuel for the purposes of Chapter 5 of Part 2 of the Energy Act 2004”.

As I said at Second Reading, I proposed the amendment to the Energy Act 2023 that led to the insertion of Section 131D into the Energy Act 2004, which treats recycled carbon fuels and nuclear-derived fuels as renewable transport fuels. But it was stated there that it required secondary legislation to take effect and to treat these fuels as renewable transport fuels. I noted that this has been done for recycled carbon fuels, but the secondary legislation has not been done for nuclear-derived fuels.

We have this quite convoluted route through the 2004 Act, the 2023 Act, the secondary legislation and the SAF mandate, so I would appreciate that clarity from the Minister on nuclear-derived fuels. That is the second part of my amendment to ensure that they would be within the scope of the Bill.

My second point is around the eligibility for this Bill of certain types of sustainable aviation fuel. I am seeking to exclude first-generation SAFs from the revenue certainty mechanism. I do not see the need for crop-based biofuels to be given support, because the production pathways for these fuels are already there—they are already commercialised at scale. On previous groups we have talked a lot about some of the issues with crop-based biofuels: they are CO₂ saving; they compete with food, potentially raising food prices; they drive land use change and reduce biodiversity. Those fuels have all those other effects, and they are already commercially viable and commercialised, so I cannot see why we need them to be within the scope of the revenue certainty mechanism.

That is brought out in a lot of the government guidance as well. The driver behind the Bill is to provide a mechanism for second and third-generation sustainable aviation fuels. That has been stated repeatedly by the Government. I cannot see a good reason for including these fuels within the revenue certainty mechanism. I look forward to the Minister’s thoughts around that. I beg to move.

[Lord Moylan (Con)]

If noble Lords do not object, I will speak now rather than later in this group because, having read his amendment, I agreed with the noble Lord, Lord Ravensdale, before Committee that it would be sensible if we grouped these two amendments together. We are both trying to get at the same thing and, in a sense, I am not going to say anything very different from what he said, but I am going to take a different approach. It is fair to say that both of us want to limit the deploying of these contracts, or at least to know what limits the Government are going to apply themselves.

As the noble Lord, Lord Ravensdale, said, Clause 16, states that

“sustainable aviation fuel’ means aviation fuel that is renewable transport fuel”,

and earlier it states that

“renewable transport fuel’ means anything that is (or is treated as) renewable transport fuel for the purposes of Chapter 5 of Part 2 of the Energy Act 2004”,

in which the noble Lord played a certain part in amending in 2023.