The State of SAF: The journey down the cost curve is a story of alignment
For fifteen years, Sustainable Aviation Fuel was aviation’s truffle oil.
A drizzle. A flourish. A one-percent blend so everyone could applaud the chemistry. We proved it worked. ASTM certified it. Engines flew it. But in the kitchen, SAF remained a micro-ingredient — exotic, expensive, impossible to source at scale.
Now something different is happening.
On ABLC Connect this week, Steve Csonka called the current U.S. mood “a bit of a funk,” framing it as “a tale of two cities… best of times, worst of times.” That’s not technical failure. That’s a young industry entering its vintage year. Because what’s emerging now isn’t just more fuel. It’s differentiation — and durability.
The Varietals: From Table Wine to Rare Vintage
If SAF were wine, the 2010s were table wine — dependable, proven, limited. HEFA was the house red. Reliable. Feedstock-constrained. Then came the New World expansion. ATJ (Alcohol-to-Jet) is the Chardonnay that scales. Built on ethanol — abundant, global, already traded. Freedom Pines proved that 10 million gallons per year can flow. Not theory. Replication. And now the rare vintage. Power-to-Liquid and Methanol-to-Jet are the high-precision varietals — molecules grown from electrons.
This week, Carbon Neutral Fuels advanced Project Starling in Workington — targeting 25,000 tons annually, >95% lifecycle emissions reduction.
Why Workington? Because it’s industrial Britain: grid access, coastal logistics, port infrastructure, proximity to carbon capture networks, and the ability to integrate wastewater streams at municipal scale. It’s not romantic. It’s practical. Likewise, Metafuels is advancing Turbe in the Port of Rotterdam
Why Rotterdam? Because it is Europe’s refining spine — pipelines, storage, blending terminals, export routes, and alignment with ReFuelEU Aviation mandates. You don’t prove synthetic kerosene in isolation. You plug it into the artery. This isn’t a hobbyist cellar anymore. It’s industrial terroir.
The Pop-Up Book — And the Physics of Fragility
Chris Tindal gave us the image: “What we want to have happen here is almost like a pop-up book… you just open it up and everything stands up all at once.”
Farmers. Technology providers. Airlines. Lenders. But the pages stick. Why?
Because of the FOAK Fragility Index. If airlines hesitate on long-term offtake, lenders add 100+ basis points. Higher capital costs increase fuel prices. Higher prices discourage offtake. The loop tightens.
Steve was direct: “The airlines don’t have extremely robust balance sheets that allow them to go off and do certain things…” Fragility is not a morality play. It’s capital structure math. And the industry is now learning to engineer around it — with mandates, aggregation, contracts for difference, and hybrid risk absorbers.
The Singapore Moment Becomes Law
Singapore is no longer a “test.” It is precedent. As of early 2026, its SAF levy and blending requirement operate within a legally binding mandate framework aligned with CORSIA and national decarbonization commitments.
Chris said it plainly: “I’m sorry flying public, but you’re going to have to maybe pay a little bit more for that…” Then the number: “If I’m normally paying $400 for a ticket… if I’m going to pay $404… okay, sure, I’ll be glad to do that.”
Four dollars? That’s based on a 2% SAF mandated blend with a SAF cost 2.5X of fossil (today). Not much pain for the passenger. Yet, four dollars backed by law changes everything. It transforms virtue into bankable demand. That’s why lenders pay attention. That’s why Rotterdam matters. That’s why Workington is viable.
The Intelligence Layer: Smarter, Not Just Bigger
This is not 2012 biofuels. Steve hinted at the next shift: “We now have the ability to do more tailoring of feedstocks… improving the overall yield… and… AI can actually help, but that’s advancing at an extremely rapid pace.” AI-driven catalyst optimization. Omics-guided biomass tailoring. Digital twins for plant yield tuning. SAF is no longer a blunt refinery story. It’s becoming a precision manufacturing story. And precision lowers fragility over time.
The Second Failure — And the Call to Courage
Here is the line that should make investors sit upright: “The hard part is when you’re in the middle of it… on that second or third failure… what do we do now?” — Steve Csonka
That is the inflection. The first FOAK success brings optimism. The second failure brings capital hesitation.
Every industrial revolution hits this moment. Horizontal drilling did. Fracking did. Offshore wind did. The question for capital markets is simple: Will you price volatility — or will you price inevitability? Because the vintage doesn’t form without fermentation. Pressure. Heat. Time.
The Navy once absorbed that heat under the banner of “energy security and fuel surety.” That early pain built a sector. Now it’s the private market’s turn.
The 2010s proved the fuel works. The early 2020s argued about carbon allocation. 2026 begins perhaps the era of structural courage. The truffle oil is becoming the house pour. The cellar is forming — from Soperton to Workington to Rotterdam to Singapore. Now the only question left is not whether SAF scales. It’s who has the patience — and the nerve — to let it age.
Category: SAF
