Flying green

New energies and technologies

Flying across the Ocean with solar energy: one of the frontiers of research at Politecnico. New-generation, ultra-lightweight, high-performance materials, combined with advanced propulsion and storage systems, represent the future of aviation. 

Sustainable propulsion also means green hydrogen, obtained from water and fuel cells, which convert fuel energy into electricity.

Yet, the green revolution in aviation necessitates a major rethinking of infrastructure: equipped airports, storage systems, and distribution networks for clean fuels. 

Likewise, it is essential to store energy safely and efficiently. Politecnico leads international cutting-edge research into the latest generation of batteries, focusing in particular on lithium, sodium, and potassium, which are safer, more durable, and easier to recycle.

Finally, materials are also essential. Politecnico's research on advanced materials extends to the aeronautical sector, to make future aircraft lighter, recyclable, and more efficient.

The PoliTO prototype on show at Expo Osaka 2025:

RA 2.0 - Record Aircraft

By PoliTO Student Team ICARUS. Academic Advisor: Prof. Paolo Maggiore
 

The RA (Record Aircraft) project aims to develop a fully electric, solar-powered aircraft with extended autonomy. Conceived as an unmanned aerial vehicle (UAV), RA is designed to operate continuously with zero carbon emissions, powered exclusively by solar energy. Its high-aspect-ratio wings, equipped with high-efficiency solar cells, recharge onboard batteries to enable reliable night-time operations. The lightweight carbon-fiber composite structure ensures strength and durability, while the propulsion system is optimized for low-speed, energy-efficient cruising. An advanced autopilot enables autonomous, long-endurance missions, supporting applications such as environmental monitoring and power-line maintenance. Backed by partners including ENAC (the Italian Civil Aviation Authority) and endorsed by astronaut Maurizio Cheli, RA stands as a milestone in sustainable aviation, proving that long-duration, zero-emission flight is not only feasible but within reach.

Some of PoliTO leading projects in various fields of sustainability in flying:

At Expo Osaka 2025, Politecnico di Torino will present some of its cutting-edge research on various aspects of sustainable aviation.

BATTERY2030+ and GIGAGREEN

By PoliTO Department of Applied Science and Technology  - DISAT. Coord: Prof. Silvia Bodoardo

 

The BATTERY2030+ initiative is a major European research program under Horizon 2020, aiming to develop the sustainable battery technologies of the future. It brings together 23 leading universities and research centers across Europe to design batteries that are not only high-performing but also recyclable and environmentally responsible. At the forefront of this effort is Politecnico di Torino, with a team covering the entire battery value chain—from innovative materials and green electrode production to cell testing and integration into vehicles. A key resource are Politecnico’s research facilities in Turin, where advanced testing is conducted on industrial-scale cells and full battery packs, including safety tests. The initiative envisions a future where multiple battery chemistries coexist, tailored to different applications, and where Europe leads in battery innovation, sustainability, and industrial competitiveness.

The GIGAGREEN project, led by Politecnico di Torino and funded under Horizon Europe, aims to transform lithium-ion battery production through sustainable, scalable, and cost-effective processes. Affiliated to the BATTERY2030+ initiative, it supports Europe’s ambition to lead the global battery value chain. The project adopts a “Design for Manufacture” approach, integrating environmental sustainability and industrial scalability. It develops innovative materials—binders, electrolytes, separators, and active components—for both dry and wet electrode processing, aiming to reduce environmental impact and enhance battery safety and performance. Politecnico di Torino plays a key role in developing a silicon-carbon composite wet anode, advancing from lab to pilot scale. GIGAGREEN also includes digital tools like the Cathode Quality Simulator to optimize production in real time. The project lays the groundwork for future European gigafactories aligned with circular economy and Industry 5.0 principles, boosting EU competitiveness and supporting a greener energy future.

H2Mobility

By NODES – Nord Ovest Digitale e Sostenibile (Digital and Sustainable North-Western Italy), Spoke 1, Aerospace and sustainable mobility. Coord: Fabrizio Pirri, Marzia Quaglio


The H2Mobility project, one of the three flagship initiatives of Spoke 1 Aerospace and Sustainable Mobility within the NODES (Nord Ovest Digitale e Sostenibile) ecosystem (a NextGenerationEU project), is a strategic effort to accelerate the transition to hydrogen-powered transportation. Coordinated by Politecnico di Torino, the project focuses on developing technologies and infrastructure to support the use of green hydrogen, particularly in high-energy-demand sectors such as heavy-duty vehicles and long-range transport, including aerospace applications.

H2Mobility aims to build a complete hydrogen value chain—from production and storage to distribution—while ensuring environmental sustainability and safety, bringing together universities, research centers, innovation hubs, and private companies. While Politecnico researchers explore the potential of hydrogen in aviation, the project current emphasis is on enabling infrastructure, new technologies, new components and innovative services for the storage of green H2, and on distribution networks.

Beside H2 storage, distribution and use capabilities, the project is also addressing E-Fuels. In this regard, the research activity will focus mainly on the development of components, technologies and systems for conversion of CO2 and other vectors into Renewable Fuels of Non-Biological Origin (RFNBO).

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MIMOSA - Multimaterial airframes based on 3D joints between AM metals and carbon-fiber composites

By PoliTO Department of Mechanical and Aerospace Engineering - DIMEAS. Coord: Giorgio De Pasquale

 

The MIMOSA project (Multimaterial airframes based on 3D joints between AM metals and carbon-fiber composites), coordinated by Politecnico di Torino, is a Horizon Europe initiative aiming to transform the design and production of sustainable aircraft structures. It focuses on hybrid airframes that combine additively manufactured metals with carbon-fiber composites using advanced 3D joint technologies. These structures are designed to reduce environmental impact, optimize material use, and improve production efficiency and recyclability. MIMOSA involves a European consortium including Leonardo, TÜV Italia, Bytest, Veplas, F3nice, GBP Metal Group, and Joanneum Research. The project’s integrated manufacturing approach reduces production steps, simplifies logistics, and supports circular economy principles by enabling material recovery at end-of-life. It also addresses the need for new certification processes for additive manufacturing and composite bonding. Through digital design, simulation, and testing, MIMOSA sets new standards for performance and sustainability in aerospace, contributing to lighter, greener aircraft over its three-year timeline.

Sustainable biofuels in aviation

By PoliTO Department of Energy "Galileo Ferraris" - DENERG. Coord: David Chiaramonti

 

Representing the Italian Government and the Ministry for the Environment and Energy Security (MASE), Politecnico di Torino currently chairs the Biofuture Platform, a multilateral initiative under the Clean Energy Ministerial (CEM): a high-level global forum that convenes governments, companies, and international organizations to promote policies and technologies related to clean energy. This marks the first time the presidency is held by an academic institution and by a European country. The Biofuture Platform brings together 23 member countries and 1 observer (Japan), and aims to promote sustainable bio-based fuels, materials, and products

As part of its institutional collaborations in green fuels, Politecnico also supports the Italian Ministry of Infrastructures (MIT) to promote sustainable aviation. The partnership aims to modernize airport infrastructure and advance Sustainable Aviation Fuels (SAFs) to support Italy’s climate neutrality goals. Politecnico will provide scientific expertise to help transform airports into energy hubs capable of supporting electric, hydrogen, and SAF-powered aircraft, including the design of fueling and storage systems. A major focus is the development of SAFs, such as Hydrotreated Vegetable Oil (HVO), which serve as alternatives to fossil jet fuels.

Moreover, Politecnico collaborates closely with Aeroporti di Roma, Fondazione PACTA (Foundation for the Decarbonization of Air Transport), UNEM (Unione Energie per la Mobilità), Consorzio Italiano Biogas, and the Italian Ministry for the Environment.

 

Policy, standards and certifications

 

In the field of certifications, Politecnico is the sole Italian partner in the EU SAF Clearinghouse, an initiative by the European Union Aviation Safety Agency (EASA) to certify new aviation fuels. In collaboration with partners such as Ricardo Group, Trinity College London, Intertek, and Envisa, Politecnico takes the lead on the “Sustainability Assessment & Certification” pillar, providing evaluation services to fuel developers.

As for the definition of international standards, Politecnico experts, including Prof. David Chiaramonti and Prof. Matteo Prussi, actively contribute to the development of international sustainability standards through the International Civil Aviation Organization, ICAO: an agency of the United Nations that coordinates international air navigation principles and techniques, setting standards and regulations for air travel, and promoting cooperation among its member states. 

 

Politecnico also coordinated a study titled “Development of outlook for the necessary means to build industrial capacity for drop-in advanced biofuels” for the European Commission. This work, featured on the Commission’s portal, outlines future demand scenarios for transport biofuels. It was developed in collaboration with e3modelling-GR (PRIMES model used by DG ENER), Wageningen University (NL), BEST (Austria), Energia-GR (project coordinator).

Besides, Politecnico is currently supporting the EU Directorate-General for Research and Innovation on investment strategies related to biofuels.