E-Fuels and the Future of Aviation
10 important things to understand right now
Aviation is under pressure from two directions at the same time. Demand for flying continues to grow, especially in long-haul and premium travel. At the same time, regulation is tightening, investors are scrutinising emissions, and corporate clients are expected to reduce Scope 3 footprints.
For long-distance aviation, there are limited near-term options. Batteries are too heavy for long-haul aircraft. Hydrogen requires entirely new infrastructure and aircraft design. That leaves one solution that works with today’s fleet: e-fuels.
E-fuels, also known as synthetic aviation fuels or Power-to-Liquid (PtL), are produced by combining green hydrogen (made using renewable electricity) with captured CO₂. The result is a liquid jet fuel that can be used in existing aircraft engines and airport systems.
Here are ten developments shaping the global e-fuels landscape.
1. E-fuels are shifting from pilot projects to industrial plants
For years, e-fuels were discussed mainly in research papers and small demonstration projects. That phase is ending. Large-scale production facilities are now under construction in Europe, the Middle East, Latin America and Australia.
Energy companies, airlines, infrastructure funds and sovereign investors are backing these projects. The discussion has moved from technical feasibility to industrial scale-up.
2. Policy is driving guaranteed demand
In the European Union, the ReFuelEU Aviation regulation mandates increasing shares of Sustainable Aviation Fuel (SAF), including synthetic fuels, in all fuel supplied at major airports. Similar incentives and mandates are developing in the United States and parts of Asia.
This creates structural demand. Fuel suppliers know there will be a market. Airlines know compliance will not be optional.
The constraint is no longer whether demand exists, but how quickly supply can expand.
3. The main constraint is green hydrogen
E-fuels depend on large volumes of green hydrogen, produced using renewable electricity. That requires massive expansion of wind, solar and electrolysis capacity.
Regions with abundant renewable resources are positioning themselves as future fuel exporters. Brazil, parts of Scandinavia, Spain, the Middle East and Australia are emerging as potential production hubs.
The geography of aviation fuel may look very different a decade from now.
4. Airlines are signing long-term supply agreements
Major carriers are entering 10–20 year offtake agreements for synthetic fuels. These contracts help de-risk investment in production facilities.
Long-term agreements are becoming a key mechanism for unlocking financing. Without secured buyers, large-scale plants are difficult to fund.
Fuel strategy is now a board-level topic in aviation.
5. E-fuels work in today’s aircraft
One of the most important features of synthetic aviation fuel is compatibility. E-fuels are designed as drop-in fuels, meaning they can be blended with conventional Jet A1 and used in existing engines.
No new aircraft designs are required. No airport infrastructure needs to be rebuilt. This makes e-fuels one of the few scalable decarbonisation pathways available to long-haul aviation in the near term.
6. Lifecycle emissions reductions can exceed 90 percent
When produced using renewable electricity and sustainable CO₂ sources, e-fuels can reduce lifecycle emissions by more than 90 percent compared to fossil jet fuel.
The exact reduction depends on how electricity is generated and how carbon is captured. Transparency around lifecycle analysis is becoming increasingly important.
As standards mature, documentation and traceability will be critical for credibility.
7. Costs are high today, but expected to decline
Synthetic fuels are currently more expensive than fossil jet fuel. The cost structure is driven by renewable electricity prices, electrolyser costs and capital expenditure.
However, three trends are working in favour of e-fuels:
- Falling renewable energy costs
- Carbon pricing mechanisms
- Industrial scaling and learning curves
As production volumes increase, cost gaps are expected to narrow. Over time, fossil fuel volatility may become a greater risk than synthetic fuel pricing.
8. Corporate travel is influencing the market
Large corporations are increasingly accountable for travel emissions. Aviation is a visible and material part of Scope 3 reporting.
This is influencing procurement decisions. Some companies are already paying premiums for SAF or entering book-and-claim agreements to reduce reported emissions.
As sustainability reporting frameworks tighten, access to low-carbon aviation fuel becomes part of competitive positioning, not only for airlines but for clients.
9. The competition is global
Countries are competing to become production hubs for synthetic fuels. Access to renewable power, stable regulation and industrial capability will determine leadership.
Some regions may specialise in production, while others focus on refining, blending and distribution. Aviation fuel markets are likely to become more interconnected, with synthetic fuel traded internationally.
Energy security and climate strategy are increasingly linked.
10. The next decade will define market structure
The 2025–2035 period will shape who controls supply, who secures long-term contracts, and which regions dominate production.
Operators that secure access early may benefit from price stability and compliance certainty. Those that delay may face tighter markets and higher costs as mandates increase.
E-fuels are not a theoretical future concept. They are entering the commercial phase, and decisions made now will have long-term consequences.
Summary: What this means for aviation and for us at Cloudberry Air
E-fuels offer a pathway for significantly reducing aviation emissions without waiting for new aircraft technologies. They rely on renewable electricity, green hydrogen and captured carbon, and they integrate into existing fleets and infrastructure.
At the same time, scaling them requires capital, policy alignment, and long-term industrial partnerships. Supply will remain constrained in the early years, making strategic fuel access a central issue.
Cloudberry Air was built with this reality in mind. The company is in dialogue with producers of synthetic and bio-based aviation fuels in Europe and Latin America, with the objective of securing long-term fossil-free supply. Its model combines fuel partnerships, efficient aircraft operations, digital optimisation and transparent carbon reporting.
The direction of travel for aviation is clear: lower lifecycle emissions, greater transparency, and stronger integration between energy systems and flight operations.
E-fuels are becoming one of the main building blocks of that transition.