H2FLY has come a long way since its inception in 2015. Evolving from a research project, we've grown into a record-breaking leader in sustainable aviation. 🙌 Read the thread below for a year-by-year breakdown of our milestones so far.

What will it take to make hydrogen-powered aviation commercially viable? Join our CEO Ralph Müller and NLR’s Roel van Benthem on 20 October to explore the technology, infrastructure and collaboration needed. Register: bit.ly/4ijjWv9

Hydrogen aviation is moving from proving what’s possible to working out what it takes to scale. What will matter most? We’d like to hear what you think.

What will it take to make hydrogen-electric flight a commercial reality? ✈️ Our focus is on the next steps: developing the tech and ecosystems needed to take hydrogen-electric aviation towards market readiness. Make sure you're following us to keep up with our latest news 🔁

We’re heading to #DLRK2026! Stefan Notter, Modelling & Simulation Coordinator at H2FLY, will take to the stage in Aachen. We look forward to joining DGLR and the wider aerospace community next week for one of the stand-out events of the year.

Electrification is already reshaping aviation — the same technology behind electric vehicles is scaling to a variety of aircraft applications. But batteries alone can't carry that shift to every mission: hydrogen-electric propulsion is what extends it to longer ranges and heavier payloads. Our CEO Ralph Müller spoke with @nwtls about why — and his vision for the industry by 2045. Full interview: l.gourl.es/l/0e241dc430c3235…

Our CEO Ralph Müller is speaking at Wasserstofftag 2026 this Wednesday (24 June) He will speak on where hydrogen-electric propulsion stands today and its path to market. Now in its 13th edition, this annual hydrogen conference in Hardthausen am Kocher brings together the industry for a full day of talks, panels, and Networking. Free to attend, sign up here → wfg.hn/h2-tag

Bringing hydrogen-electric flight to market is a step-by-step journey — and one that will start at a smaller scale. Propulsion technology is only part of the equation. Hydrogen aviation needs a complete ecosystem: ground infrastructure, refueling concepts, operational integration, and certification frameworks. Building that ecosystem — alongside our propulsion systems — is the direction H2FLY is moving. Our CEO Ralph Müller shared his perspective on the road ahead with Aerospace Global News: aerospaceglobalnews.com/news…

Hydrogen-electric aviation isn't one-size-fits-all, the right system architecture depends on the specific aircraft and mission. Our CEO Ralph Müller will be speaking at the AERO Hydrogen & Battery Summit 2026 on April 21 presenting H2FLY's methodology for working through that complexity. Session details: aero-expo.com/conferences/da…

Women remain significantly underrepresented across aerospace, accounting for only around 6% of commercial pilots and about 14% of aerospace engineers. We’re proud of the our team from H2FLY who were part of this important conversation in @Aero_GlobalNews on International Women’s Day. The article highlights the women shaping the future of aviation and the importance of building teams where diverse voices can contribute, grow, and lead. Read the full article to see what our experts Debjani Ghosh and Maria Sol Rau said about the barriers and the solutions needed to make the sector more equitable: aerospaceglobalnews.com/news…

Some advice stays with you. A conversation that inspires you. A perspective that changes how you approach your work. A reminder to keep going, especially when it feels challenging. This International Women's Day, we asked some of the women at H2FLY what advice they would pass on to others navigating their careers or those just starting out. Their words remind us of the importance of courage and persistence to break new ground, and believe in your abilities. We celebrate the women driving progress in aviation and those creating workplaces where everyone can contribute, grow, and succeed.

Resilient climate innovation is built on engineering discipline. In a recent conversation with Alison Coleman from @Forbes, H2FLY CEO Ralph Müller shared why 2026 could mark an important moment for climate tech, particularly in aviation. While parts of the sector are adjusting to new market realities, the fundamentals of long-term progress remain the same: systematic development, technical rigor and consistent execution. At H2FLY, our work follows that principle, from bench testing to flight demonstrations across multiple aircraft platforms, guided by a clear roadmap and defined engineering milestones. Read more here: forbes.com/sites/alisoncolem…

With our industry committed to net zero emissions, 2026 is shaping up to be a truly pivotal year for progress. To meet these targets, the world must accelerate innovation, investment and collaboration, especially in hydrogen-electric flight. H2FLY is ready for this challenge. Over the past year, we've advanced from research to real-world demonstrations, and in 2026 we'll continue to advance our next-generation fuel cell system, push ahead with new test flights and launch and expand our partnerships programs across the hydrogen ecosystem. Together with our team, we're determined to set the pace for the future of hydrogen-powered flight.

Wishing our partners, friends, and all those in the aviation community a restful and joyful holiday season🎄

2026 is set to be a landmark year. As we advance the next generation of our hydrogen-electric propulsion systems and expand our testing activities, we continue pushing the boundaries of what's possible. To support this next phase, we're growing our team. We're looking for people who are passionate about being at the forefront of innovation and want to help shape the future of flight. Become part of the journey, discover our upcoming opportunities here: h2fly-gmbh.jobs.personio.de/

Even as the year wraps up the team at H2FLY has been pushing hard in the test hall, keeping test benches running to stay exactly where we need to be on our roadmap. Our in-house developed components, like valves, turbomachinery and electrical systems are all going through their pace to prove they’re ready for the next step. Every run, every data point and every iteration is about one thing. Getting closer to delivering the next generation of our H2F‑175 system in 2026.

There's no better way to wrap up the year than bringing the incredible H2FLY team together to celebrate our wins and the teamwork that made them possible. This year's party gave everyone a chance to reflect and enjoy each other's company after months of hard work. It was great to see colleagues connecting across teams, sharing stories from a year spent driving progress both in the lab and out in the field. From the milestones we've reached to the innovative projects on the horizon for 2026, we shared a heartfelt thank-you to every team member for their dedication this year.

Achieving zero-emission flight with hydrogen-powered technologies requires a steady supply of clean electricity to produce sustainable hydrogen. Electricity demand in Europe is expected to surge by 2050 as industries, transport sectors, and AI data centres ramp up electrification in their decarbonization efforts. Meeting this growing demand while producing green hydrogen for aviation, and simultaneously phasing out fossil fuels, calls for a rapid and large-scale deployment of renewables such as wind, solar, and beyond. Without urgent policy action to accelerate renewable energy deployment, streamline permitting, improve grid infrastructure, and provide clear investment incentives, electricity prices could increase, risking economic competitiveness and energy security across Europe. Policymakers must prioritize expanding renewable energy capacity, modernizing grids, and fast-tracking hydrogen infrastructure development. Ensuring abundant, affordable, and clean electricity is essential for producing green hydrogen that makes zero-emission flight truly sustainable and competitive, securing Europe’s climate ambitions and energy future. Source: Europe’s flightpath to economic competitiveness, Fathom Financial Consulting

Europe is home to less than 6% of the world’s population but accounts for nearly 27% of global air traffic, highlighting its critical role in connecting people and economies. Aviation is a powerful economic engine for Europe, contributing approximately 5% to the continent’s gross domestic product (GDP) and supporting around 4% of all jobs. Its impact spans from manufacturing and exporting aircraft to enabling tourism in regions reliant on air travel. The stakes are high. Large parts of Europe depend on aviation not only being viable but sustainable. Lagging behind in decarbonization would risk lost competitiveness, weaker economies, and missed chances for growth. We believe Europe can seize a leading role in the future of clean aviation by advancing hydrogen-powered zero-emission flight technologies. By driving innovation in hydrogen fuel cells and sustainable propulsion, H2FLY aims to help Europe unlock new markets, create high-value jobs, and maintain its global leadership in aviation. Europe won't just adapt to the future of aviation, it will shape it, powered by hydrogen. Source: Europe’s flightpath to economic competitiveness, Fathom Report