EU Releases U-Space 3.0 Framework, Invests €2.1 Billion to Build Hydrogen eVTOL Airport Network, Accelerating Cross-Border Layout of Low-Altitude Economy
In February 2025, the European Union officially released the U-Space 3.0 low-altitude management framework and announced that the European Investment Bank had approved a special fund of €2.1 billion to launch the construction of a network of 63 hydrogen vertical take-off and landing airports (eVTOL airports). These two initiatives work in synergy, not only unifying the core standards for low-altitude flight within the EU, but also building an infrastructure backbone to support the development of Advanced Air Mobility (AAM). This marks that the EU’s cross-border coordinated development in the field of low-altitude economy has entered a new stage of standardization and scale, providing a replicable "European solution" for global low-altitude governance.
As the core top-level design for low-altitude traffic management in the EU, the iterative upgrading of the U-Space framework has always centered on the core goals of "safety, coordination, efficiency and openness". The most crucial breakthrough of the 3.0 version released this time is the unification of remote identification and airspace management standards across the entire EU, completely breaking the barriers of inconsistent low-altitude control rules, disconnected data and poor coordination among member states. Previously, significant differences in low-altitude management standards among EU member states led to cumbersome identity verification, long flight authorization cycles and low airspace allocation efficiency for low-altitude aircraft such as eVTOLs and drones when flying cross-border, seriously restricting the formation of a pan-European low-altitude network and the large-scale development of the low-altitude economy.
The U-Space 3.0 framework clarifies unified technical specifications for remote identification, adopting a verification mechanism based on Decentralized Identifiers (DIDs) to realize point-to-point trusted identity verification for eVTOLs and other aircraft without relying on a central certification authority. This not only ensures flight safety, but also improves the flexibility and efficiency of identity verification. At the same time, through privacy computing technology, it achieves the secure sharing and collaborative computing of sensitive data such as passenger information and commercial routes. In terms of airspace management, the framework continues the concept of phased coordination, further refines the four-level U1 to U4 service system, clarifies the operating rules for different airspace levels, and builds a two-layer topological structure of "traditional airspace ensuring safety and U-Space airspace improving efficiency". It divides the ultra-low altitude below 1,200 feet into subdivided areas such as open layers and conditional layers to achieve refined control. At the same time, through a unified airspace allocation interface, it promotes two-way data interaction between the U-Space system and the traditional Air Traffic Management (ATM) system, reducing the average time for cross-border flight authorization to less than 30 minutes and controlling the delay of flight path data interconnection within 1 second, greatly improving the efficiency of low-altitude flight.
If the U-Space 3.0 framework is the "soft support" for the development of the EU’s low-altitude economy, then the construction of the network of 63 hydrogen eVTOL airports is its "hard foundation". The €2.1 billion special fund approved by the European Investment Bank this time will be fully invested in the "Skyway Nexus" project, which is used to layout 63 standardized hydrogen vertical take-off and landing airports in core cities, transportation hubs and remote areas of various EU member states, building a pan-European low-altitude transportation infrastructure network. These airports are all equipped with hydrogen fuel refueling facilities, taking into account both environmental protection and endurance support needs, and are integrated into the EU’s unified low-altitude traffic management system to achieve seamless connection with the U-Space 3.0 framework, meeting the full-process needs of eVTOL aircraft such as take-off and landing, parking and supply.
It is reported that the 63 planned hydrogen eVTOL airports will adopt standardized design, catering to both passenger and cargo transportation needs. They can not only support civil scenarios such as air taxis and medical rescue, but also serve commercial fields such as logistics and distribution and infrastructure inspection. Among them, Verti Port Alpha at Munich Airport has taken the lead in starting construction and is expected to be put into operation at the end of February. It will be equipped with automatic hydrogen fuel refueling stations and comprehensive customs facilities to provide convenient customs clearance and supply services for freight eVTOLs within the EU. The completion of these airports will completely solve the pain points of eVTOLs such as "difficulty in landing and supply", open up the "last mile" of low-altitude flight, promote the formation of a multi-modal transport system integrating low-altitude traffic with ground traffic and railway traffic, and further expand the application scenarios of the low-altitude economy.
Behind the EU’s simultaneous promotion of the implementation of the U-Space 3.0 framework and the construction of the hydrogen eVTOL airport network is its dual consideration of seizing the commanding height of global low-altitude economic development and promoting the implementation of the "Green Europe" strategy. Currently, the low-altitude economy has become the focus of the new round of global industrial competition. As the core carrier of low-altitude traffic, the commercial operation of eVTOLs is inseparable from a unified standard system and improved infrastructure. By unifying remote identification and airspace management standards, the EU has reduced the institutional costs of cross-border low-altitude flight and attracted more enterprises to participate in low-altitude industry innovation; while the layout of hydrogen eVTOL airports is in line with the EU’s "carbon neutrality" goal. The clean nature of hydrogen fuel can realize zero carbon emissions from low-altitude flight, and at the same time promote the in-depth integration of the hydrogen energy industry and the low-altitude transportation industry, fostering new economic growth points.
Industry insiders analyze that the implementation of the U-Space 3.0 framework and the construction of the hydrogen eVTOL airport network will greatly accelerate the commercialization process of the EU’s low-altitude economy. It is estimated that by 2026, the annual number of low-altitude aircraft flights in Europe will exceed 1.2 million, and by 2030, the EU’s Advanced Air Mobility (AAM) market will account for 32% of the global revenue share. At the same time, these two initiatives also provide important experience for global low-altitude governance, proving that the development model of "unified standards + coordinated infrastructure" can effectively solve the problems of fragmented low-altitude control and backward infrastructure.
At present, the EU has clarified the implementation timetable for each member state, requiring the full implementation of the U-Space 3.0 framework by the end of 2025 and the operation of 63 hydrogen eVTOL airports by 2027, and will gradually expand cross-border low-altitude routes to promote the coordinated development of the pan-European low-altitude economy. In the future, the EU will continue to improve low-altitude management standards, increase investment in hydrogen eVTOL technology research and development and infrastructure construction, and further consolidate its leading position in the global low-altitude economy.
