The SAF Buyer Is a Commercial Stack

Written By Elvis Ebikade, PhD

Why financeable SAF demand is assembled across price, volume, duration, credit and market optionality

GOVERNING THESIS: A SAF producer may not find one counterparty capable of buying everything the project needs to sell, for as long as the project needs to sell it. Bankability may therefore depend on assembling a coordinated commercial stack that performs several buyer functions as one financeable revenue system.

The producer believed it had found its buyer: an airline wanted the fuel, the project could qualify for valuable incentives, corporate customers were looking for credible Scope 3 reductions, and in the target compliance market, the prevailing premium appeared capable of supporting the first years of production. After years spent proving the technology, lowering costs and preparing to scale, the commercial pathway finally seemed visible.

Then the financing conversations began.

The airline would consider two years, perhaps longer after performance was demonstrated. The project financing case required substantially more contracted duration, the airline's credit quality affected how lenders valued the commitment, corporate buyers wanted verified environmental attributes, not necessarily the physical fuel, incentives depended on where the fuel was produced, delivered and claimed, storage, blending and airport access still required counterparties, capital and contractual responsibility.

The producer had demand, but the demand did not yet behave like a buyer.

The buyer begins to separate

This is the point at which many SAF projects encounter a difficult commercial truth:

The party willing to use the fuel may not be the party willing to fund the full premium.

The party willing to buy the environmental value may not need the molecule.

The policy mechanism supporting the economics may not provide the duration or certainty required by lenders.

The infrastructure provider may accept the fuel only after somebody else funds the dedicated capacity.

For the producer, the initial picture of one airline buyer starts to separate into several commercial jobs. Someone must purchase or accept the physical product, and someone must fund the value above conventional jet fuel. Someone must commit sufficient volume, provide adequate duration, bring credit quality that the financing market can underwrite, while others must make delivery, blending, certification, evidence and claims executable.

One counterparty can perform several of these jobs, but few can be assumed to perform all of them.

Not every airline is investment grade, or can accept a ten-year obligation, as some may support seven years or even prefer two-year procurement cycles that resemble conventional jet-fuel purchasing. Even an airline strongly committed to decarbonization must protect its balance sheet, manage an uncertain premium and preserve operating flexibility. Those constraints affect the value of the offtake to both debt and equity providers. The producer therefore cannot ask only whether an airline wants SAF. The more consequential question is what kind of commitment that airline can make, which risks it can carry and which gaps remain after it does.

The premium reveals the real architecture

The producer next turns to price. In a voluntary transaction, the economics ultimately reconcile to the airline's conventional jet-fuel alternative because the airline is choosing to buy. But there is no single Jet A benchmark that applies equally everywhere. The relevant index, basis, taxes, logistics, storage and airport-access costs depend on where the airline would otherwise procure and uplift fuel. A gallon delivered into California does not compete against the same alternative as a gallon delivered into Texas or the Midwest.

That location-specific comparison changes the premium the producer must close. Production cost is only the first layer. The project must also understand the cost of reaching the chosen delivery point, the conventional-fuel value displaced there, the incentives the project can actually realize and any separate value available from environmental attributes or coproducts.

COMMERCIAL EQUATION

Uncovered Premium = Required Delivered SAF Price− Location-Specific Jet-Fuel Value − Realizable Incentives − Contracted Environmental and Other Value

The uncovered premium is the remaining value that the producer and its commercial partners must architect.

This is where the airline can become more than an offtaker: a carrier with a major hub may help the producer work backward to the right airport, identify infrastructure partners, bring corporate customers into the transaction or advocate for production and consumption incentives that support a new local project. It may help demonstrate jobs, rural development, supply resilience or economic value to state decision-makers. The strongest airline relationship is therefore often co-created around the customer's operating and financial reality. The goal is not to force the entire premium onto the airline, but to design a structure that allows the airline to procure more SAF for voluntary or compliance purposes without creating an obligation it cannot sustain or renew.

The tension point: several interested parties, no complete buyer

  • The producer now appears to have more options.

  • Federal and state incentives can support part of the premium.

  • Corporate customers may purchase the Scope 3 environmental value.

  • A procurement alliance or intermediary can aggregate buyers.

  • A compliance market may offer higher pricing for eligible volumes.

Yet each apparent solution introduces another condition: incentive ownership must be allocated, eligibility must survive changes in power sourcing, carbon inputs, certification and delivery, environmental attributes require credible issuance, transfer and retirement, and the same reduction cannot be sold twice. Corporate interest must become a commitment with sufficient volume, duration and credit. A high-value compliance market can still expose the project to policy revision, qualification rules, penalty mechanics and a single delivery route.

Imagine the producer presenting the combined case to a lender. The airline contract covers two years, a corporate attribute buyer may support five, the debt case extends for twelve. A state incentive is material, but its future value or allocation remains exposed. The project has one practical blending and delivery route, and management expects the remaining gallons to clear into a premium mandate market.

Every component may be plausible., but together, they still leave an uncovered commercial tail.

This is also the risk in many first-commercial technology cases. A credible pilot result and an attractive long-term minimum selling price can be combined with assumptions about cheaper power, lower electrolyzer costs, eligible hydrogen and carbon dioxide, high utilization, manageable installed cost, mature financing and continued policy value. Each assumption may have evidence behind it. but a minimum selling price demonstrates required cost recovery under modeled conditions. It does not prove that a customer will contract at that price, for the required duration, through the risks that remain before commercial operation. The producer has reached the central tension: the model contains revenue, but the project does not yet contain a financeable buyer.

The commercial stack is the revenue-side capital stack

The solution becomes clearer when the producer looks across the financing table. A first-commercial project rarely expects one source of capital to perform every financing job: equity absorbs risk and provides loss-bearing capital, debt supplies lower-cost funding once defined conditions are met, grants, guarantees or concessional instruments may address risks the private market will not efficiently carry. The capital stack works because different sources perform different jobs within one coordinated structure, and the commercial side can be architected the same way.

  • The airline may anchor physical demand and provide the required aviation use.

  • Corporate buyers may fund verified Scope 3 value.

  • Federal, state or local mechanisms may reduce the uncovered premium or project cost.

  • A platform or intermediary may aggregate fragmented demand and simplify execution.

  • Infrastructure counterparties may make storage, blending and delivery possible.

  • Compliance markets may provide higher-value outlets for eligible volumes.

This does not mean adding every available revenue source to the model: a commercial stack is not a collection of optimistic values, but is a coordinated set of commitments whose ownership, conditions and risks work together without overlap. Its quality depends on four questions:

  1. Price: Does the combined structure close enough of the premium under credible base and downside cases?

  2. Volume: Are sufficient gallons or attributes committed, and can residual volume reach another qualified market?

  3. Duration: Do the commitments extend far enough to support the financing period, including renewal and uncontracted-tail risk?

  4. Credit: Will lenders and equity investors underwrite the counterparties and support mechanisms behind the revenue?

Once the producer sees these as separate jobs, the negotiation changes, and the airline does not need to solve everything. The corporate buyer does not need the physical molecule, the policy mechanism does not need to guarantee the entire project. Each participant must perform a defined role well enough for the combined system to become financeable.

Channel choice becomes a value decision

The producer must still decide how to commercialize the environmental attribute. A direct agreement with a large corporate buyer may preserve more value and create a deeper, longer relationship. It can also require buyer access, claims expertise, negotiation capacity and a longer sales cycle. An intermediary can simplify buyer matching, contracting and administration, but it must earn a margin. An aggregated procurement platform can diversify demand and turn several corporate interests into a more substantial commitment, but the producer may give up bilateral control or accept competitive procurement terms.

The right sequence may be to pursue strategic direct buyers for anchor value, use aggregators or intermediaries for residual volume and backfill, and preserve access to compliance markets where the project's eligibility and delivered economics are attractive. The decision is not direct versus platform as a matter of principle. It is which route produces the strongest risk-adjusted netback, credible duration and dependable execution for this project. The same environmental benefit can carry different commercial value to different eligible Scope 3 buyers, including business-travel and freight customers, but it can be allocated only once. Market knowledge determines whether the producer recognizes those alternatives and how effectively it sequences them.

A mandate is not a commercial backbone

The producer may still be tempted to rely on a mandate market because the pricing appears higher. A mandate can create a legal obligation and a valuable route to market, but it does not automatically fund segregated storage, blending assets, pipeline connections, working capital or airport access. Somebody must pay for those capabilities, accept the operating obligations and carry the cost on a balance sheet. Voluntary demand carries a parallel caution: a corporate sustainability target or airline aspiration is not contracted cash flow, and as everything in nature, business priorities can change.

The useful distinction is therefore not simply voluntary versus mandated. It is contracted versus merchant, durable versus revisable, bankable floor versus market upside. A legally durable mandate with executable cost recovery can support a strong base case. A long-term voluntary agreement with a creditworthy buyer can do the same. An uncontracted corporate ambition or forecast compliance premium may provide upside, but neither should be presented as dependable merely because demand has been announced.

Optionality must be built before the market changes

The producer cannot eliminate uncertainty from policy, customer behavior, technology scale-up or market pricing, but it can decide whether the project is designed to survive that uncertainty. Optionality is the deliberate ability to adapt because the project has preserved credible alternatives, rather than indecision.

  • Eligibility optionality protects access to more than one market through the right certification, electricity, carbon-source and chain-of-custody choices.

  • Delivery optionality qualifies more than one workable route to storage, blending, terminals and airports. Customer optionality reduces dependence on one airline, corporation or procurement channel.

  • Attribute optionality defines ownership and transfer rights before value is allocated.

  • Contract optionality combines a bankable floor with adjustment, renewal or reallocation mechanisms that can respond to change.

But optionality cannot be improvised after the facility is built and the contracts are signed. A producer cannot turn toward a market it has never studied, a buyer whose requirements it does not understand or a delivery route the project was not designed to use. This is why market intimacy matters. Without it, the project merely amplifies the assumptions and biases embedded in its original direction, rather than preserve optionality.

The producer's final test

The producer returns to the financing case with a different question. It is no longer asking whether the project has an airline, a policy incentive or a corporate buyer. It is asking whether the combined commitments perform the commercial jobs required by the capital structure. Before calling the revenue bankable, management should be able to answer:

  • What is the customer's actual delivered jet-fuel alternative at the proposed point of use?

  • Which parties close the price, volume, duration and credit gaps, and which gaps remain uncovered?

  • Which revenue components are contracted, which are policy-dependent and which remain merchant?

  • Who owns the physical fuel, environmental attributes, incentives and delivery obligations at every interface?

  • What qualified alternative buyer, market or delivery route remains available if the base assumption changes?

The producer's technology still matters, lower production cost still matters, incentives, premium markets and strong airline relationships still matter. The difference is that none of them is mistaken for the complete answer.

Nor is the objective simply to secure an offtake. An offtake can provide volume while transferring too much value, embedding the wrong delivery point, concentrating exposure in one buyer or market, or leaving the producer with risks the headline price does not compensate. The producer is optimizing for durable, realizable, risk-adjusted netback: the value it can retain after delivery costs, channel margins, incentive conditions, attribute allocation, counterparty risk, contract duration, financing implications and downside exposure are considered together. The project becomes more financeable when those elements are assembled into a contracted revenue floor that capital providers can underwrite, while preserving enough eligibility, customer and delivery optionality to improve risk-adjusted netback, capture upside and respond to change. The best offtake is therefore not necessarily the one with the highest stated price or the longest nominal term. It is the structure that delivers the strongest risk-adjusted value after the full commercial system is taken into account.

BOTTOM LINE The goal is not simply to secure an offtake. It is to build a financeable revenue system that maximizes durable, realizable, risk-adjusted netback, while preserving enough optionality for the project to survive changing market conditions.

Building a financeable SAF revenue system?

Vansam helps producers and project developers test whether airline offtake, corporate demand, incentives, delivery obligations and counterparty commitments combine into revenue that survives investor and lender diligence. Discuss a live decision.

Sources and further reading

Elvis Ebikade, PhD
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