Acelen’s $3B Biofuel Push Could Make Brazil a Global Hub for Sustainable Aviation Fuel

Acelen Renováveis, a Brazilian company, is investing $3 billion in an initial phase to produce Sustainable Aviation Fuel (SAF) and renewable diesel from the native macaúba palm. The ambitious project aims to position Brazil as a global leader in sustainable biofuels, with plans for an annual production of 1 million tons of fuel and the cultivation of 180,000 hectares of macaúba on degraded lands.

The project leverages Brazil's extensive degraded land for macaúba cultivation, aiming to establish the country as a leader in sustainable energy. An independent study by Fundação Getúlio Vargas projects an economic impact of $40 billion and the creation of up to 85,000 direct and indirect jobs.

Pedro Estrela, Vice President of New Business and Digital at Acelen Renováveis, emphasized the macaúba's potential. "It's another example of the capacity of Brazilian agribusiness to develop sustainable, scalable, abundant, and competitive energy solutions," Estrela stated. All cultivation will take place on degraded land, converting low-productivity areas into economic units.

Traceability is a crucial element of Acelen's strategy. A recent partnership with a Spanish firm will implement a digital traceability tool for macaúba, ensuring sustainable development from planting to biofuel production. This system will monitor practices and emissions, providing auditable proof of sustainability, essential for regulated markets such as Europe and the United States.

The European market, which mandated 2% SAF usage for airlines in 2023, is a strategic focus. The U.S. market is also developing incentives for renewable diesel and SAF. Brazil anticipates implementing its own SAF mandate by 2027, aligned with the CORSIA (Carbon Offsetting and Reduction Scheme for International Aviation) framework.

Macaúba was selected for its high oil yield, which is 10 times more per hectare than soy, and its resilience to temperature variations and water scarcity. It also contributes to the recovery of degraded land. The primary challenge involves domesticating this native plant for large-scale cultivation.

Acelen has established the Aelen Agripark, an advanced innovation and technology center in Montes Claros, Brazil, dedicated to macaúba domestication. The Agripark features laboratories for genetic mapping, seedling production (with 3 million seedlings already produced), and a pilot extraction plant capable of processing 2 tons of fruit per hour. The annual production target is 10.5 million macaúba seedlings.

The project incorporates a robust social responsibility component, engaging local communities and family farmers. Approximately 20% of the cultivated area, or 36,000 hectares, will involve partnerships with small producers, offering technological support, access to public policies, and guaranteed purchase contracts. This initiative aims to boost income and enhance living conditions in rural areas.

Founded in 2023 with investment from Mubadala Capital, Acelen Renováveis plans to construct the first Brazilian biorefinery starting in 2029. The long-term vision includes scaling to five modules, with a total investment of $15 billion, to further solidify Brazil's leadership in advanced biofuels. The project aims to decarbonize the aviation and road transport sectors by approximately 80% and sequester atmospheric carbon through macaúba cultivation.

Brazil’s Diesel Subsidy Could Supercharge Petrobras (PETR3; PETR4) Returns to 12.7%

A new diesel subsidy package announced by the Brazilian federal government is poised to significantly enhance shareholder returns for state-controlled oil company Petrobras (PETR4.SA), according to an analysis by BTG Pactual (BPAC11.SA).

The measures could elevate Petrobras's free cash flow yield to shareholders to approximately 12.7% by 2026, analysts Bruno Montanari de Almeida and Pedro Soares da Cunha stated in a report. Under the new scheme, Petrobras is expected to receive around 4.77 reais per liter of diesel sold, equivalent to $147 per barrel.

While the Import Parity Index (IPP) currently stands at 6.18 reais per liter, subsidies for imported diesel, estimated at 1.52 reais per liter, effectively reduce the IPP to about 4.66 reais per liter. "This implies that Petrobras is receiving the maximum possible in this scenario," the BTG team noted.

The package includes an additional subsidy of 0.80 reais per liter for diesel produced domestically, initially valid for two months. BTG Pactual estimates this could inject an additional $1.5 billion per quarter into Petrobras's revenues. "The additional subsidy of R$0.80 per liter, even if valid for only two months, implies approximately $1.5 billion per quarter in incremental revenue," the analysts highlighted. They added that extending this benefit until year-end could impact the FCFE yield by about 3.5 percentage points.

This 12.7% yield projection is based on Brent crude oil prices at $80 per barrel and stable fuel prices throughout 2026.

BTG Pactual also anticipates positive impacts for the distribution sector. An increased subsidy of 1.20 reais per liter for imported diesel is expected to boost distributors' participation in the government program. "The increase in the subsidy to R$1.20 per liter should encourage greater adherence to the program by distributors. This tends to reduce distortions and increase predictability in the fuel market," the bank assessed.

Despite an environment of heightened government intervention, BTG's report concludes that Petrobras is likely to maintain its profitability and continue high levels of cash distribution. "The package creates an environment in which the company maintains value capture while the domestic market adjusts through subsidies," the team concluded.

In related developments, Petrobras recently approved the financing for the Sergipe Deepwater project, which aims to produce 200,000 barrels of oil and 18 million cubic meters of gas daily. This initiative underscores the company's commitment to natural gas as a transitional fuel and its broader energy transition strategy.

Petrobras is also advancing projects in renewable fuels, including co-processed diesel and aviation Sustainable Aviation Fuel (SAF), which incorporate vegetable oil or recycled cooking oil. The company is also investing in solar energy, with a project already operational at its Minas Gerais refinery, aiming for self-sufficiency and potential electricity export.

President Lula is seeking to annul a recent Petrobras auction for LPG (cooking gas) supply, citing concerns over significant market distortions. Petrobras currently sells 13kg of gas to distributors at a fixed price of R$34.70, unchanged since July 2024. 

However, as Petrobras cannot meet 100% of Brazil's LPG demand, it sells by quotas and occasionally holds extra-quota auctions. A recent auction saw prices reach R$72, more than double the fixed price in some regions, with premiums ranging from 48% to 82% above the fixed value. 

This auction accounted for about 15% of Brazil's monthly gas demand, and the price increase is expected to reach consumers. Petrobras justifies these auctions by citing industrial supply and demand management, leveraging external market prices to increase profit margins without unpopular fixed-price adjustments, and for logistical control. 

The situation highlights a conflict between Petrobras's right to operate as a mixed-capital company (51% government, 49% private) and the government's desire to control consumer prices, especially in an election year. 

Critics, including President Lula, view high profits from such auctions as exploitative, and can generate inflation and directly affect the lives of Brazilians. 

To combat the high prices of fuel and cooking gas, the Brazilian government has implemented measures to curb rising fuel prices, including subsidies for national and imported diesel, tax exemptions for biodiesel, and credit lines for airlines. 

These measures are initially valid for two months, with a potential impact of R$31 billion if extended until year-end. The government claims a "zero effect" on public coffers due to increased revenue from other sources, such as a 12% increase in oil export tax, estimated to generate R$32 billion. 

For imported diesel, a R$1.20 per liter subsidy is in place, with states contributing R$0.60. Domestically produced diesel receives an R$0.80 per liter subsidy fully funded by the federal government. These are in addition to a R$0.32 per liter subsidy announced earlier. Importers are expected to pass these benefits to consumers. Biodiesel will see federal tax exemptions (PIS/Cofins), saving R$0.02 per liter. 

LPG (cooking gas) imports will receive a federal subsidy of R$850 per ton. The airline sector, heavily impacted by rising aviation kerosene prices, will benefit from up to R$9 billion in credit lines per company, federal tax exemptions (PIS/Cofins) on aviation kerosene (saving R$0.07 per liter), and deferred payments of fees to the Brazilian Air Force until December. 

The government's economic team believes these measures, combined with increased revenue, will offset the costs, though the actual impact on revenue and expenditure remains to be seen.

Sustainable Aviation Fuel (SAF)

Sustainable Aviation Fuel (SAF), a liquid alternative to conventional fossil-based jet kerosene, is a renewable fuel derived from non-petroleum feedstocks. Developed as a critical component in the global aviation industry's effort to achieve net-zero carbon emissions by 2050, SAF is chemically identical to conventional jet fuel — a characteristic known as "drop-in" capability — meaning it can be used in existing aircraft engines and airport infrastructure without modification. While SAF currently accounts for less than 1 percent of global aviation fuel consumption, it is widely regarded as the most viable near-term solution for decarbonizing the aviation sector, which is responsible for approximately 2 to 3 percent of global anthropogenic carbon dioxide (CO2) emissions.

Production and Pathways

The production of SAF involves converting renewable biomass or waste materials into hydrocarbons suitable for aviation. Unlike conventional jet fuel, which is refined from crude oil, SAF utilizes a diverse range of feedstocks, including used cooking oils, agricultural residues, municipal solid waste, and energy crops such as sugarcane or camelina. Several technical pathways have been certified for SAF production:

• Hydroprocessed Esters and Fatty Acids (HEFA): The most mature and widely used method, HEFA converts vegetable oils and waste fats into fuel through a process of deoxygenation and hydrocracking.
• Alcohol-to-Jet (AtJ): This pathway involves the fermentation of sugars or starches into alcohols (such as ethanol or isobutanol), which are then dehydrated and oligomerized into synthetic paraffinic kerosene.
• Fischer-Tropsch (FT): This process gasifies biomass or municipal waste into a synthesis gas (syngas), which is then catalytically converted into liquid hydrocarbons.
• Power-to-Liquid (PtL): Also known as e-fuels, this advanced pathway uses renewable electricity to synthesize fuel from captured CO2 and hydrogen produced via electrolysis of water.

In many instances, SAF is produced through "co-processing," where renewable feedstocks are integrated directly into existing petroleum refineries alongside mineral crude oil. This approach leverages existing industrial infrastructure to lower initial capital expenditures.

Competitive Advantage

The primary competitive advantage of SAF lies in its seamless integration into the existing aviation ecosystem. Because it is a "drop-in" fuel, it avoids the massive costs associated with redesigning aircraft or rebuilding refueling networks. Furthermore, SAF provides a degree of energy security by diversifying fuel sources and reducing dependence on volatile global oil markets. For nations with robust agricultural sectors, such as Brazil and the United States, SAF production offers significant economic opportunities, creating new value chains in the bioenergy and chemical industries.

Ecological Impact

The ecological benefit of SAF is primarily realized through its lifecycle carbon footprint. While burning SAF in an engine still releases CO2, the carbon emitted was previously absorbed from the atmosphere by the biomass during its growth, creating a closed-loop cycle. In contrast, conventional jet fuel introduces "new" carbon into the atmosphere from underground reserves.

Current SAF production can reduce lifecycle CO2 emissions by up to 80 or 87 percent compared to conventional kerosene. Additionally, SAF contains significantly lower levels of sulfur and aromatics, which reduces the emission of particulate matter and the formation of contrails — the white streaks behind aircraft that contribute to non-CO2 radiative forcing and global warming. However, the overall ecological benefit depends heavily on the sustainability of the feedstock; for instance, feedstocks that compete with food crops or lead to deforestation (indirect land-use change) may diminish the fuel's environmental credentials.

Applications and Market Mechanisms

SAF is primarily applied in commercial and military aviation, where it is typically blended with conventional jet fuel (currently up to a 50 percent limit for most certified pathways). Beyond its physical use, the industry has developed innovative market mechanisms to accelerate adoption:

• Book & Claim: This system allows an airline or corporate customer to purchase the environmental attributes of SAF produced in one location, even if the physical fuel is consumed elsewhere. This decoupling of the environmental credit from the physical product overcomes logistical barriers and reduces the emissions associated with transporting heavy fuel over long distances.
• Regulatory Compliance: SAF is increasingly used to meet international mandates, such as the Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA) established by the International Civil Aviation Organization (ICAO).

As production scales and technological advancements reduce the current price premium — which ranges from three to five times the cost of conventional fuel — SAF is expected to become the standard propellant for the next generation of sustainable air travel.