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Neste and United Airlines Expand Sustainable Aviation Fuel Use at US Airports

Neste and United Airlines extend their SAF partnership to three major US hubs, enhancing sustainable aviation with existing infrastructure integration.

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Neste and United Airlines Deepen Partnership to Expand SAF Usage Across Major US Hubs

The aviation industry is navigating a critical juncture in its quest for sustainability, with a collective goal to achieve net-zero carbon emissions by 2050. Central to this ambition is the adoption of Sustainable Aviation Fuel (SAF), a renewable alternative that holds the potential to significantly decarbonize air travel. Unlike conventional jet fuel derived from fossil sources, SAF is produced from renewable raw materials like used cooking oil and agricultural residues. This shift is not merely an environmental aspiration but an operational imperative, as airlines and fuel producers collaborate to build a viable market for lower-emission fuels. The journey is complex, marked by challenges in production scale, cost, and infrastructure, yet it is being propelled forward by strategic partnerships and supportive government policies.

In a significant move that underscores this industry-wide momentum, Neste, the world’s leading producer of SAF, and United Airlines have announced a major expansion of their partnership. This collaboration is set to introduce SAF to three new major U.S. airports, marking a tangible step in making sustainable air travel more widespread. The agreement highlights a shared commitment to reducing the carbon footprint of aviation and demonstrates the growing demand for renewable fuel solutions. By scaling up the availability of SAF at key hubs, both companies are not only advancing their corporate sustainability goals but also signaling to the broader market that the infrastructure for a greener future in aviation is actively being built. This partnership serves as a crucial case study in how collaboration can accelerate the transition to more sustainable energy sources within a hard-to-abate sector.

Expanding the Footprint: SAF Lands at Three New Hubs

The core of the announcement is the introduction of Neste’s MY Sustainable Aviation Fuelâ„¢ at three key United Airlines hubs: George Bush Intercontinental Airport (IAH) in Houston, Newark Liberty International Airport (EWR), and Dulles International Airport (IAD). This makes United the first commercial airline to use SAF at these airports, representing a notable “first-mover” achievement in the industry. The fuel, produced from 100% renewable raw materials, can reduce greenhouse gas emissions by up to 80% over its lifecycle compared to traditional jet fuel when used in its pure form. For practical application, the neat SAF is blended with conventional jet fuel to meet stringent aviation specifications before being used in commercial flights.

The logistics of this expansion are as important as the fuel itself. Neste is delivering the SAF to the airports through existing pipeline infrastructure from its terminal facilities in Houston. This detail is critical, as it demonstrates that SAF can be integrated into the current fuel distribution systems without requiring massive, cost-prohibitive investments in new infrastructure. The delivery timeline has been staggered, with supplies to Houston’s IAH beginning in July 2025 and continuing through October 2025. Deliveries to Newark and Dulles commenced in September 2025 and are scheduled to run until the end of the year. This phased rollout allows for a managed integration of the new fuel supply into the airports’ operational workflows.

This latest agreement builds upon a pre-existing relationship between the two companies. Neste had already been supplying SAF to United at San Francisco International Airport (SFO) and Chicago O’Hare International Airport (ORD) since August 2024. The decision to expand to three more hubs reflects a successful initial phase and a mutual confidence in the scalability of the SAF market. Both companies have been vocal about the importance of a supportive policy environment, citing state-level incentives like California’s Low Carbon Fuel Standard (LCFS) and Illinois’ SAF Purchase Credit as key enablers for their earlier collaborations.

“Introducing sustainable aviation fuel for the first time at our hubs in Houston, Newark, and Dulles is another significant milestone in United’s sustainability journey,” stated Lauren Riley, United’s Chief Sustainability Officer.

The Broader Context: Policy, Production, and a Push for Scale

The Neste-United partnership does not exist in a vacuum. It is emblematic of a broader trend fueled by a combination of corporate strategy and significant government support. The U.S. government has identified SAF as a critical component of its decarbonization strategy, rolling out powerful incentives to stimulate domestic production. Policies like the Inflation Reduction Act (IRA), which offers a tax credit of up to $1.75 per gallon, and the Renewable Fuel Standard (RFS) are designed to make SAF more cost-competitive with conventional jet fuel, which remains a primary barrier to widespread adoption. The White House’s “SAF Grand Challenge” further solidifies this commitment, setting an ambitious goal to scale U.S. production to 3 billion gallons by 2030.

These incentives are having a clear impact on the market. Projections show the U.S. SAF market is on a trajectory of rapid growth, with some forecasts predicting its value could rise from approximately $259 million in 2023 to over $2.2 billion by 2031. Production capacity is also expanding, with projections indicating a significant leap in output by the end of 2024. Neste itself is a major player in this expansion, with a current global SAF production capability of 1.5 million tons annually and plans to increase that to 2.2 million tons by 2027.

Despite the positive momentum, industry leaders are quick to point out that the work is far from over. In their joint announcement, both Neste and United emphasized the continued need for robust policy support. Carl Nyberg, Senior Vice President at Neste, noted the importance of more states enacting “proven incentive policy frameworks to accelerate the production of SAF.” This sentiment was echoed by United’s Lauren Riley, who stressed that the growth of the SAF market requires ongoing support from both state and federal governments to create sensible market incentives. Their statements highlight a crucial reality: while the technology and raw materials for SAF exist, its journey to becoming a mainstream aviation fuel is deeply intertwined with the policy landscape that governs it.

Conclusion: A Partnership Fueling the Future

The expanded agreement between Neste and United Airlines is more than just a supply deal; it is a clear indicator of the aviation industry’s evolving approach to sustainability. By bringing SAF to major hubs on the East Coast and in the South, the partnership makes a tangible impact on the availability of lower-emission fuel options and sets a precedent for other airlines to follow. The use of existing infrastructure is a particularly vital proof point, demonstrating that the transition to SAF can be more seamless and economically viable than often assumed. It reinforces the idea that progress can be made through practical, incremental steps that leverage current assets.

Looking ahead, the success of this and similar initiatives will depend heavily on the synergy between corporate action and government policy. The calls from both Neste and United for continued and expanded policy support underscore the fact that the SAF market is still in a nascent, growth-dependent phase. As production scales up and technology advances, the cost differential between SAF and conventional jet fuel is expected to narrow, but government incentives remain the critical bridge to get there. This partnership serves as a powerful model for how the private and public sectors can collaborate to tackle one of the most significant environmental challenges of our time, moving the entire aviation industry closer to its goal of a net-zero future.

FAQ

Question: What is Sustainable Aviation Fuel (SAF)?
Answer: SAF is a renewable fuel used in commercial aviation that is produced from renewable sources such as used cooking oil, animal fat waste, and agricultural residues. It can significantly reduce greenhouse gas emissions compared to conventional fossil-based jet fuel.

Question: Which new airports will receive SAF under the expanded Neste and United Airlines partnership?
Answer: The new agreement includes George Bush Intercontinental Airport (IAH) in Houston, Newark Liberty International Airport (EWR), and Dulles International Airport (IAD).

Question: How much can Neste’s SAF reduce greenhouse gas emissions?
Answer: In its neat (100% concentrated) form, Neste MY Sustainable Aviation Fuelâ„¢ can reduce greenhouse gas emissions by up to 80% over its life cycle compared to fossil jet fuel.

Question: Is new infrastructure needed to handle SAF at airports?
Answer: No, a key advantage highlighted by this partnership is that the SAF is delivered to the airports using existing pipeline infrastructure, where it is then blended with conventional jet fuel.

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Photo Credit: Neste

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Sustainable Aviation

KBR PureSAF Technology Selected for Kazakhstan First SAF Plant

KBR licenses PureSAF technology for Kazakhstan’s first SAF facility, using an alcohol-to-jet process with domestic feedstocks.

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Global engineering firm KBR announced on August 24, 2026, that it secured a contracts to license its proprietary PureSAF technology and provide engineering design for Kazakhstan’s inaugural Sustainable Aviation Fuel (SAF) production facility. The project, developed in partnership with KazMunayGas-Aero LLP (KMG-Aero) and KazFoodProducts (KFP), will utilize domestic agricultural feedstocks to produce low-carbon aviation fuel via an alcohol-to-jet (AtJ) process.

In a press release detailing the contract award, KBR confirmed the agreement supports Kazakhstan’s strategic objective to establish itself as an international aviation hub while advancing aviation decarbonization. The planned facility will leverage technology developed in collaboration with Swedish Biofuels AB to convert ethanol into drop-in aviation fuel.

Technology and Project Scope

The facility will utilize KBR’s PureSAF technology, an alcohol-to-jet pathway designed to process agricultural feedstocks into sustainable aviation fuel. The foundational trilateral agreement covering the Process Design Package (PDP) and technology licensing was signed by KBR, KMG-Aero, and KFP in Astana on July 23, 2026. KBR, which employs approximately 37,000 people and operates in 28 countries, will provide the engineering framework required to scale the AtJ process for commercial output.

KBR Sustainable Technology Solutions President Jay Ibrahim stated the company is honored to support the national commitment to reduce greenhouse gas emissions.

“KBR’s PureSAF is a feed-flexible, bankable technology that is designed to deliver high SAF yields and supports the project across the full lifecycle. We look forward to closely collaborating and supporting the successful execution of this landmark SAF project,” Ibrahim said.

Kazakhstan’s Aviation Decarbonization Strategy

The KBR contract follows a series of government initiatives aimed at building a domestic SAF supply chain. On August 4, 2026, Kazakh Prime Minister Olzhas Bektenov and Dr. Peter Lee of Hong Kong-based Full Vision Capital signed a memorandum of understanding to explore creating a green aviation fuel ecosystem in the city of Alatau. This proposed ecosystem would cover the full production cycle, from cultivating agricultural feedstock to manufacturing the finished product.

These infrastructure investments align with recommendations from global aviation regulators and industry groups. In April 2026, the International Air Transport Association (IATA) emphasized that continued investment in SAF, alongside new airport infrastructure, is critical for Kazakhstan to capitalize on global passenger and cargo traffic and strengthen its domestic aviation sector.

AirPro News analysis

The KBR contract award represents a concrete technical step in Kazakhstan’s ambition to localize SAF production, but several commercial variables remain undefined. The August 24 announcement did not disclose the financial value of the engineering contract, the projected production capacity of the facility, or a target completion date. We note that while the alcohol-to-jet pathway is a proven method for SAF production, scaling agricultural feedstock supply-chain domestically will be critical to the plant’s long-term viability. The parallel involvement of Full Vision Capital suggests the government is actively working to finance and structure this agricultural supply chain in the Alatau region to ensure the KBR-designed facility has the necessary inputs to operate at scale.

Sources: KBR

Photo Credit: Montage

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Sustainable Aviation

Syzygy Plasmonics and IFC Partner on SAF Projects in Latin America

Syzygy Plasmonics and IFC sign a framework to develop SAF projects in Latin America, starting with a 350,000-gallon facility in Uruguay.

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Syzygy Plasmonics and the International Finance Corporation (IFC) announced a framework agreement on August 18, 2026, to develop a pipeline of SAF projects across Latin America, beginning with a commercial-scale facility in Uruguay.

The partnership, detailed in a press release issued by Syzygy Plasmonics, pairs the company’s proprietary light-driven reactor technology with the IFC’s technical and commercial advisory services. The initiative targets emerging markets by utilizing regional renewable energy and biogas feedstocks to produce lower-carbon alternatives to conventional jet fuel.

The NovaSAF-1 project in Uruguay

The first project under this framework is NovaSAF-1, located in Durazno, Uruguay. The facility is projected to produce an estimated 350,000 gallons of SAF annually. Syzygy Plasmonics has set a target year of 2028 for the commencement of commercial-scale operations and initial fuel deliveries from the site.

NovaSAF-1 will utilize biogas sourced from the nearby Estancias Del Lago powdered milk plant. This biogas will be combined with Uruguayan renewable electricity to produce synthetic paraffinic kerosene. The production process integrates Syzygy’s light-driven technology with Fischer-Tropsch technology licensed from Velocys to maximize fuel output. According to Syzygy Plasmonics, this process yields an estimated reduction in lifecycle greenhouse gas emissions of up to 90 percent compared with conventional jet fuel.

Commercial backing and offtake agreements

The IFC framework agreement follows established commercial commitments for the NovaSAF-1 facility. On January 20, 2026, global commodities group Trafigura signed a binding six-year offtake agreement to purchase the entire production volume from the Uruguayan plant. The agreement also includes an option for Trafigura to purchase additional volumes from future Syzygy projects.

Syzygy Plasmonics CEO Trevor Best described the commercial arrangements as a critical step toward commercial-scale impact and disrupting the SAF market. The IFC, a member of the World Bank Group, will provide advisory support to help scale these operations across the region.

“The transition to lower-carbon aviation will depend on technologies that are not only innovative, but commercially viable and scalable,” said Raphaël Eskinazi, IFC Regional Investment Manager for Manufacturing and Forests in Latin America and the Caribbean. “IFC’s role is to help bridge that transition: supporting pioneering projects that can mobilize private capital, demonstrate new business models and create pathways for broader market adoption across emerging economies.”

AirPro News analysis

We view the alignment of IFC advisory services, Trafigura’s guaranteed offtake, and Velocys’ established Fischer-Tropsch technology as a significant de-risking mechanism for Syzygy Plasmonics. Scaling novel SAF production methods, particularly those categorized as Renewable Fuels of Non-Biological Origin (RFNBO), typically faces steep financing hurdles. By securing a guaranteed buyer for 100 percent of the initial plant’s output before finalizing the IFC framework, Syzygy has demonstrated a clear path to revenue.

Latin America presents a highly favorable environment for RFNBO production. The region offers abundant agricultural waste for biogas and a growing grid of renewable electricity. If NovaSAF-1 meets its 2028 production targets, the framework agreement with the IFC positions Syzygy to replicate this model rapidly across other agricultural and renewable energy hubs in the Southern Hemisphere.

Sources: Syzygy Plasmonics via PR Newswire (IFC Agreement)

Photo Credit: Syzygy Plasmonics

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Sustainable Aviation

UK, Google and NATS Launch Contrail Avoidance Trial

Operation Blue Skies is a £5M, 30-month trial targeting contrail reduction across Shanwick oceanic airspace.

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A consortium led by the UK government, Google, and air navigation service provider NATS has launched a £5 million, 30-month trial to mitigate aviation-induced warming contrails across the entire Shanwick oceanic airspace.

Announced on August 18, 2026, in a Google press release, “Operation Blue Skies” marks the commercial aviation industry’s first attempt to implement contrail avoidance at the scale of an entire flight corridor rather than on a per-airline basis. The initiative targets a phenomenon responsible for approximately one-third of the sector’s total climate impact.

Scaling AI for airspace-wide mitigation

The program will conduct two operational trials during the winters of 2026-2027 and 2027-2028. Testing will take place exclusively within the NATS-controlled Shanwick oceanic airspace, which encompasses the eastern half of the North Atlantic corridor. According to Google, this specific airspace accounts for roughly 5 percent of global contrail warming.

Google UK is participating on a pro-bono basis, providing a £1.4 million in-kind contribution that includes artificial intelligence research, engineering resources, and computing infrastructure. Google Technical Program Manager Paul Hodgson and Senior Program Manager Chaim Langermann described the initiative as “the world’s first state-backed trial to avoid contrails at the scale of an entire oceanic airspace.”

The broader consortium includes the UK Department for Transport (DfT), the Met Office, Contrails.org, Imperial College London, the University of Cambridge, and the Aerospace Technology Institute (ATI).

“We’re partnering with Google to back British experts and innovators to find practical ways to make flying cleaner. This is a world-first, and it is British ingenuity leading the way. By testing small tweaks to flight paths over the Atlantic, we can cut the vapour trails left behind by planes,” said UK Government Minister for Aviation, Maritime and Freight Keir Mather, according to reporting by Smart Cities World.

Transitioning from individual flights to systemic integration

Operation Blue Skies builds upon earlier research validating the use of AI-powered forecasts to predict and avoid contrail-forming regions. Google Research previously partnered with American Airlines, EUROCONTROL’s Maastricht Upper Area Control Centre (MUAC), and FlightKeys to demonstrate that contrail avoidance is scientifically and operationally viable for individual flights.

The new trial shifts the operational coordination to the air navigation service provider. By integrating predictive models directly into the airspace management level, NATS and its partners aim to evaluate how contrail mitigation impacts overall airspace capacity, controller workload, and flight efficiency across a high-density oceanic routing system.

AirPro News analysis

We view the shift from individual airline dispatch trials to an air navigation service provider-led model as a critical maturation in aviation sustainability efforts. If NATS can successfully integrate AI-driven contrail forecasting into the Shanwick oceanic clearance process without degrading airspace capacity or significantly increasing fuel burn, it could establish a blueprint for global air traffic management. The winter testing windows are particularly relevant, as atmospheric conditions during these months are highly conducive to persistent contrail formation over the North Atlantic. The results of this 30-month program will likely dictate whether regulators and service providers mandate contrail avoidance routing in the next decade.

Sources: Google Blog

Photo Credit: Google

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