Advent Technologies and Stralis announce Pioneering Relationship to Advance Hydrogen Electric Flight
Advent Technologies (NASDAQ: ADN) has established a strategic partnership with Stralis Aircraft to advance hydrogen electric flight technology. The collaboration centers on Advent's proprietary membrane electrode assembly technology being integrated into Stralis' hydrogen electric Beechcraft Bonanza aircraft.
Advent's high-temperature PEM technology enables more efficient engine cooling with smaller radiators, reducing aircraft weight and drag. Stralis reports their system can achieve 10x longer flight distances than battery-electric solutions at lower costs than fossil-fuel aircraft. The hydrogen-electric propulsion system is expected to reduce engine maintenance costs by 40-60% due to fewer moving parts and lower operating temperatures.
Advent Technologies (NASDAQ: ADN) ha avviato una partnership strategica con Stralis Aircraft per sviluppare la tecnologia del volo elettrico a idrogeno. La collaborazione prevede l’integrazione della membrana e dell’elettrodo proprietaria di Advent nell’aeromobile Beechcraft Bonanza a propulsione idrogeno-elettrica di Stralis.
La tecnologia PEM ad alta temperatura di Advent consente un raffreddamento del motore più efficiente con radiatori di dimensioni ridotte, diminuendo il peso e la resistenza aerodinamica dell’aereo. Secondo Stralis, il loro sistema può raggiungere distanze di volo 10 volte maggiori rispetto alle soluzioni elettriche a batteria, con costi inferiori rispetto agli aeromobili a combustibili fossili. Il sistema di propulsione idrogeno-elettrico dovrebbe inoltre ridurre i costi di manutenzione del motore del 40-60% grazie a un numero inferiore di parti in movimento e a temperature operative più basse.
Advent Technologies (NASDAQ: ADN) ha establecido una alianza estratégica con Stralis Aircraft para impulsar la tecnología de vuelo eléctrico con hidrógeno. La colaboración se centra en integrar la tecnología propietaria de ensamblaje de membrana y electrodos de Advent en la aeronave Beechcraft Bonanza de propulsión hidrógeno-eléctrica de Stralis.
La tecnología PEM de alta temperatura de Advent permite un enfriamiento del motor más eficiente con radiadores más pequeños, reduciendo el peso y la resistencia aerodinámica de la aeronave. Stralis afirma que su sistema puede lograr distancias de vuelo 10 veces mayores que las soluciones eléctricas con baterías y a costos inferiores a los de los aviones con combustibles fósiles. Además, se espera que el sistema de propulsión hidrógeno-eléctrico reduzca los costos de mantenimiento del motor entre un 40 y un 60% debido a menos piezas móviles y a temperaturas de operación más bajas.
Advent Technologies (NASDAQ: ADN)는 수소 전기 비행 기술을 진전시키기 위해 Stralis Aircraft와 전략적 파트너십을 체결했습니다. 이번 협력은 Advent의 독자적인 멤브레인 전극 어셈블리 기술을 Stralis의 수소 전기형 비치크래프트 보난자 기체에 통합하는 데 초점을 맞추고 있습니다.
Advent의 고온 PEM 기술은 더 작은 라디에이터로도 엔진 냉각을 효율적으로 수행해 항공기의 무게와 항력(드래그)을 줄여줍니다. Stralis에 따르면 해당 시스템은 배터리 전기 방식보다 10배 더 긴 비행 거리를 달성할 수 있으며, 화석연료 항공기보다 낮은 비용으로 운항할 수 있다고 합니다. 또한 수소-전기 추진 시스템은 이동 부품이 적고 작동 온도가 낮아 엔진 유지보수 비용을 40~60% 절감할 것으로 예상됩니다.
Advent Technologies (NASDAQ: ADN) a conclu un partenariat stratégique avec Stralis Aircraft pour faire progresser la technologie du vol électrique à hydrogène. La collaboration porte sur l’intégration de l’assemblage membrane-électrode propriétaire d’Advent dans l’avion Beechcraft Bonanza à propulsion hydrogène-électrique de Stralis.
La technologie PEM haute température d’Advent permet un refroidissement du moteur plus efficace avec des radiateurs plus petits, réduisant ainsi le poids et la traînée de l’avion. Stralis indique que leur système peut atteindre des distances de vol 10 fois supérieures à celles des solutions électriques à batterie, pour des coûts inférieurs à ceux des avions à carburants fossiles. Le système de propulsion hydrogène-électrique devrait également réduire les coûts de maintenance moteur de 40 à 60% grâce à un nombre réduit de pièces mobiles et à des températures de fonctionnement plus basses.
Advent Technologies (NASDAQ: ADN) hat eine strategische Partnerschaft mit Stralis Aircraft geschlossen, um die Technologie des wasserstoffbetriebenen Elektroflugs voranzutreiben. Die Zusammenarbeit sieht die Integration der proprietären Membran-Elektroden-Einheit von Advent in das wasserstoff-elektrische Beechcraft Bonanza Flugzeug von Stralis vor.
Advents Hochtemperatur-PEM-Technologie ermöglicht effizientere Motorenkühlung mit kleineren Kühlern und reduziert so Gewicht und Luftwiderstand des Flugzeugs. Stralis berichtet, dass ihr System im Vergleich zu batterieelektrischen Lösungen 10-mal größere Flugreichweiten erreichen kann und kostengünstiger ist als Flugzeuge mit fossilen Brennstoffen. Zudem soll das wasserstoff-elektrische Antriebssystem die Wartungskosten für den Motor aufgrund weniger beweglicher Teile und niedrigerer Betriebstemperaturen um 40–60 % senken.
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Insights
Advent's partnership with Stralis marks meaningful progress in commercializing hydrogen fuel cell technology for aviation applications, potentially opening new revenue streams.
Advent Technologies' collaboration with Stralis Aircraft represents a tangible application of their proprietary high-temperature PEM (HT-PEM) membrane electrode assembly technology in the emerging hydrogen-electric aviation market. The technical advantages highlighted in the release are substantial - their technology enables more efficient cooling with smaller radiators, reducing both weight and drag, which are critical factors for aircraft performance.
Stralis' implementation in the Beechcraft Bonanza creates a compelling proof-of-concept using an established aircraft platform. Their claim of 10x greater range compared to battery-electric solutions, coupled with lower costs than fossil-fuel alternatives, positions this technology at an interesting intersection of performance and economics. The projected 40-60% reduction in maintenance costs due to fewer moving parts and lower operating temperatures represents a significant potential advantage over conventional aircraft engines.
What's particularly noteworthy is the versatility of application - the technology can be used to replace batteries in existing electric aircraft, retrofit into piston/turboprop aircraft, be integrated into new designs, or serve as auxiliary power units. This multi-use capability substantially expands the addressable market beyond just new aircraft designs.
With ground testing already underway and first flight planned for later this year, this partnership has progressed beyond conceptual stages to actual implementation, validating the technical viability of Advent's membrane technology in aerospace applications.
LIVERMORE, Calif., Aug. 18, 2025 (GLOBE NEWSWIRE) -- Advent Technologies Holdings, Inc. (NASDAQ: ADN) an innovation-driven leader in the fuel cell and hydrogen technology sector, is supplying its proprietary membrane electrode assembly technology to Stralis Aircraft, based in Australia, for their hydrogen electric Beechcraft Bonanza aircraft.
Emory De Castro, the Chief Technology Officer of the Company stated, “we continue to work closely with the team at Stralis on their next generation high temperature (HT-PEM) fuel cells for their hydrogen electric propulsion system. Advent’s HT-PEM membrane electrode assembly is an integral part of the fuel cell, and our technology enables the engines to be efficiently cooled with smaller radiators that reduces weight and drag on the aircraft.”
Stuart Johnstone, Chief Technology Officer and Co-founder says: “We are proud to be working with Advent in the USA to develop our fuel cell system for aircraft. Thanks to this tech, our system is significantly lighter than existing alternatives, which is what is needed for aircraft. We enable aircraft to fly more than ten times further than battery-electric solutions at a lower cost than fossil-fuel-powered planes. We are already testing our hydrogen-electric propulsion system on the ground and plan to achieve first flight of our six-seat technology demonstrator aircraft later this year.”
Hydrogen electric propulsion systems have fewer moving parts and operate at lower temperatures compared to existing aircraft engines, which is predicted to reduce engine maintenance costs by between 40
Gary Herman the CEO of Advent stated, “Our membrane technology is unsurpassed and offers a versatile clean energy solution across multiple industries including aviation, marine, automotive, and defense.”
About Advent Technologies Holdings, Inc.
Advent Technologies Holdings, Inc. is a U.S. corporation that develops, manufactures, and assembles complete fuel cell systems as well as supplying customers with critical components for fuel cells in the renewable energy sector. Advent is headquartered in Livermore, CA, with offices in Athens and Patras Greece. With approximately150 patents issued, pending, and/or licensed for fuel cell technology, Advent holds the IP for next-generation HT-PEM that enables various fuels to function at high temperatures and under extreme conditions, suitable for the automotive, aviation, defense, oil and gas, marine, and power generation sectors. For more information, visit www.advent.energy.
For more information, please contact:
Advent Technologies Holdings, Inc.
Press@advent.energy
About Stralis Aircraft
Stralis Aircraft is based in Australia, and is aiming to be the world's leading emission-free aircraft company, producing high-performance, low-operating cost, hydrogen-electric propulsion systems and aircraft at scale. The propulsion system incorporates their proprietary high-temperature next-generation fuel cell system that is six times lighter than automotive fuel cell systems. Their hydrogen-electric aircraft will travel ten times further than battery-electric alternatives and will be cheaper to operate than fossil fuel-powered aircraft. Stralis has letters of intent to buy the aircraft from airlines across Australia, New Zealand, Asia, the USA, and Europe.
Stralis Media Kit
For more information, please contact:
Emma Whittlesea, Head of Partnerships, Stralis Aircraft
ew@stralis.aero
+61 411 530941
Cautionary Note Regarding Forward-Looking Statements
This press release includes forward-looking statements. These forward-looking statements generally can be identified by the use of words such as “anticipate,” “expect,” “plan,” “could,” “may,” “will,” “believe,” “estimate,” “forecast,” “goal,” “project,” and other words of similar meaning. Each forward-looking statement contained in this press release is subject to risks and uncertainties that could cause actual results to differ materially from those expressed or implied by such statement. Applicable risks and uncertainties include, among others, the Company’s ability to maintain the listing of the Company’s common stock on Nasdaq; future financial performance; public securities’ potential liquidity and trading; impact from the outcome of any known and unknown litigation; ability to forecast and maintain an adequate rate of revenue growth and appropriately plan its expenses; expectations regarding future expenditures; future mix of revenue and effect on gross margins; attraction and retention of qualified directors, officers, employees and key personnel; ability to compete effectively in a competitive industry; ability to protect and enhance Advent’s corporate reputation and brand; expectations concerning its relationships and actions with technology partners and other third parties; impact from future regulatory, judicial and legislative changes to the industry; ability to locate and acquire complementary technologies or services and integrate those into the Company’s business; future arrangements with, or investments in, other entities or associations; and intense competition and competitive pressure from other companies worldwide in the industries in which the Company will operate; and the risks identified under the heading “Risk Factors” in Advent’s Annual Report on Form 10-K filed with the Securities and Exchange Commission (“SEC”) on June 6, 2025, as well as the other information filed with the SEC. Investors are cautioned not to place considerable reliance on the forward-looking statements contained in this press release. You are encouraged to read Advent’s filings with the SEC, available at www.sec.gov, for a discussion of these and other risks and uncertainties. The forward-looking statements in this press release speak only as of the date of this document, and the Company undertakes no obligation to update or revise any of these statements. Advent’s business is subject to substantial risks and uncertainties, including those referenced above. Investors, potential investors, and others should give careful consideration to these risks and uncertainties.
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