The European Commission has adopted a landmark initiative, the Sustainable Transport Investment Plan (STIP), setting out a strategic course to accelerate the energy transition of Europe’s aviation and maritime transport sectors. The plan, a key element of the EU’s competitiveness agenda and the Clean Industrial Deal, provides for the first time a common framework to boost investment in renewable and low-carbon fuels for both air and sea transport.
The 🇪🇺 Commission sends a clear signal to EU transport industry & investors: renewable & low-carbon fuels are 🔑 to the ✈️🚢 sectors' energy transition.
— EU Transport (@Transport_EU) November 5, 2025
With the adoption of the Sustainable Transport Investment Plan, #EUTransport is responding to the need to unlock investments. pic.twitter.com/Y5bviYHlbH
A response to an urgent challenge
Transport remains one of the most emissions-intensive sectors in Europe and one of the most difficult to decarbonise. Aviation and shipping, often described as “hard to abate”, require significant technological and industrial shifts to meet the continent’s climate ambitions. The STIP responds directly to the need to unlock private investment, build capacity and scale up production of sustainable alternative fuels.
According to the European Commission, achieving the fuel targets set under the ReFuelEU Aviation and FuelEU Maritime regulations will require around 20 million tonnes of renewable alternative fuels by 2035, including approximately 13.2 million tonnes of biofuels and 6.8 million tonnes of e-fuels. To meet this scale, investments of around €100 billion will be needed by 2035. By advancing the production of sustainable fuels within Europe, the continent can reduce its dependency on imported fossil fuels, enhance industrial competitiveness and strengthen climate resilience on the path to carbon neutrality by 2050.
EU Commissioner for Sustainable Transport and Tourism, Apostolos Tzitzikostas, said the initiative represents “a decisive step towards a sustainable future”. He emphasised that the plan is not only about reducing emissions but also about building a stronger, more competitive and resilient Europe that leads in sustainable transport.
A framework built on three pillars
The STIP is structured around three main pillars: a strategic framework identifying investment needs and existing gaps, a set of financing actions designed to de-risk and unlock investments, and an external dimension aimed at supporting global partnerships while protecting European industries.
In the short term, the European Commission plans to mobilise at least €2.9 billion through EU instruments by the end of 2027. The InvestEU programme will channel at least €2 billion towards sustainable alternative fuels. The European Hydrogen Bank will allocate €300 million to support hydrogen-based fuels for aviation and shipping. A further €133 million will be invested in research and innovation projects under Horizon Europe, and more than €440 million will be distributed through the Innovation Fund to support synthetic fuel projects.
€2.9 billion for Europe’s net-zero future.
— European Commission (@EU_Commission) November 3, 2025
We're investing in 61 cutting-edge projects across 19 sectors and 18 countries via 🇪🇺 Innovation Fund.
We aim to cut 221 million tonnes CO₂ in 10 years – the emissions from 9.9 million cars.
All in for climate neutrality by 2050 ↓… pic.twitter.com/jVSmzOvXjH
An Early Movers Coalition for synthetic aviation fuel will also be launched with several Member States before the end of the year, with the aim of attracting at least €500 million for pilot projects.
In the medium term, the Commission intends to develop a new mechanism linking fuel producers and buyers, offering revenue stability and reducing investment risk. It will also seek to simplify administrative procedures for airlines and shipping operators to free up resources for growth and innovation. International partnerships will be strengthened to expand the global production of renewable and low-carbon fuels, ensuring fair competition and securing access for EU producers and users.
A crucial step for sustainable aviation
The STIP arrives at a decisive moment for aviation. The ReFuelEU Aviation regulation sets mandatory minimum shares of sustainable aviation fuels in conventional jet fuel supplied at EU airports. From 2025, suppliers must ensure that at least 2% of all aviation fuel in the EU is sustainable. This share will increase gradually to 70% by 2050. Synthetic aviation fuels, which are produced using renewable hydrogen and captured carbon, will need to account for at least 1.2% by 2030 and 35% by 2050.
Sustainable aviation fuels, known as SAF, include a variety of sources such as synthetic fuels, advanced biofuels from waste and residues, and recycled carbon fuels. These blends are compatible with current aircraft technology and can reach up to 50% SAF content. Ongoing research is aiming to increase the blending rate to 100%.
By promoting the industrial scale-up of e-SAF and hydrogen-based fuels, the STIP provides the financial and regulatory support needed to meet the ambitious goals set out by ReFuelEU. It also signals to investors and the industry that the EU remains committed to building a sustainable aviation market driven by innovation and competitiveness.
🎯 To meet ReFuelEU Aviation and FuelEU Maritime Regulation targets by 2035, approximately 20 million tonnes of sustainable alternative fuels will be needed – this calls for an estimated €100 billion to drive production.
— EU Transport (@Transport_EU) November 5, 2025
➡️ Learn more about STIP: https://t.co/wOARIYVSlE
Rail on a parallel track
The Commission also presented a new High-Speed Rail Action Plan designed to make Europe’s network faster and more connected, offering travellers a cleaner alternative to short-haul air routes. The plan aims to link major European cities at speeds of 200 kilometres per hour and above. It foresees, for example, a reduction in travel time from Berlin to Copenhagen from seven to four hours, and from Sofia to Athens from almost fourteen hours to six. Although the focus of the broader transport package is shared between rail and fuels, the main momentum now lies with the decarbonisation of aviation through the STIP.
🚄🇪🇺 Europe is picking up speed. #HighSpeedRail pic.twitter.com/ts8ueGxhDp
— Apostolos Tzitzikostas (@tzitzikostas) November 6, 2025
The investment challenge
Despite the clear policy direction, the scale of the challenge remains significant. Production of synthetic aviation fuels in Europe is still in its early stages, and few large-scale e-fuel plants have reached the point of final investment decisions. High capital costs, uncertain demand and strong price competition from conventional fuels continue to slow progress.
The STIP seeks to address these barriers by providing regulatory stability, financial de-risking and revenue certainty. By sending a clear signal to investors, the Commission hopes to unlock the flow of private capital necessary to achieve industrial scale.
The sustainability debate
While the plan has been broadly welcomed, the growing debate around the sustainability of biofuels continues to intensify. Ahead of the upcoming COP30 climate summit, nearly 100 scientists signed an open letter warning world leaders about the “dangers of an uninhibited expansion of global biofuels demand”. Their analysis suggests that, on average, biofuels may emit up to 16% more greenhouse gases than the fossil fuels they are meant to replace, largely due to indirect land-use change and emissions along the supply chain.
This perspective highlights the importance of prioritising truly renewable and low-impact alternatives such as synthetic fuels and hydrogen-derived fuels. The Commission’s strategy seeks to balance both sides of the equation: expanding advanced biofuels in the short term while investing heavily in e-fuels for the long term.
Belém must be the COP that delivers.
— Ursula von der Leyen (@vonderleyen) November 6, 2025
Delivers on tripling renewables & doubling energy efficiency by 2030.
Delivers for the countries vulnerable to climate change.
Delivers robust climate finance and carbon pricing.
Europe will play its part ↓ https://t.co/xmiUk1Cnnz
Implications for the travel and aviation sectors
For the aviation industry, the STIP offers both a challenge and an opportunity. The transition to sustainable fuels will likely raise fuel prices in the short term, but it will also create a pathway to more resilient and independent supply chains. Airlines that embrace SAF early could strengthen their sustainability credentials, appeal to environmentally conscious travellers and meet tightening regulatory requirements ahead of competitors.
Airports and destinations that position themselves as sustainable hubs could benefit from increased visibility and new partnerships. For Europe’s tourism sector, the STIP provides a framework that aligns connectivity with climate action, ensuring that travel remains viable in a decarbonised economy.
As the world prepares for COP30, the plan marks a defining moment in Europe’s journey towards climate neutrality. The challenge now lies in turning promises into production and ambition into measurable progress. Whether the EU can truly lead the global race for sustainable aviation fuels will depend on how swiftly it can move from vision to reality.
