PR Newswire
SION, Switzerland, Feb. 2, 2026
SION, Switzerland, Feb. 2, 2026 /PRNewswire/ — Electric aviation has faced a single, unresolved bottleneck: proving to regulators that high-energy propulsion batteries can safely contain worst-case failures.
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H55 today announces that it has completed the industry’s first regulator-required and authority-witnessed propulsion battery module certification test sequence — addressing a critical gating factor that has constrained the commercialisation and financing of electric aircraft programs.
Completed on December 19, 2025, the EASA-supervised campaign places H55 at the forefront of efforts to establish certification-grade, aviation-safe propulsion battery systems, setting the standards against which future programs will be assessed. The campaign provides certification-level evidence that commercial lithium battery cells can be integrated into aviation propulsion battery systems capable of safely containing worst-case failure scenarios, especially fire propagation.
From Validation to Scalable Certification
This milestone goes beyond documenting or promising safety performance. It confirms H55’s ability to engineer and manufacture propulsion battery systems developed to certification standards on regulatory-approved manufacturing lines and supply chains.
The test campaign was conducted in a certified production facility using serial-conforming hardware (not prototypes) manufactured through validated processes. It confirms H55’s ability to engineer and manufacture propulsion battery systems built to certification standards on regulatory-approved manufacturing lines and supply chains.
H55’s unique, patented Energy Storage System design embeds monitoring, redundancy, and hazard mitigation at the cell level as foundational principles, ensuring containment of extreme failure conditions consistent with aviation safety requirements.
This approach establishes a repeatable certification pathway for H55’s battery technology, rather than advancing a single aircraft programme. By defining a certification-grade battery module reference framework, H55 materially reduces adoption risk for aircraft manufacturers, operators, insurers, and investors by enabling actuarial risk assessment based on authority-validated failure data rather than programme-specific assumptions. With certification evidence able to compound across a wide range of aircraft platforms, capital, engineering resources, and industrial capacity can expand without proportional increases in programme-level uncertainty.
The system foundations established through H55’s first conforming propulsion battery system now support accelerated development and regulatory progress for both fully electric and hybrid-electric aircraft. The data, infrastructure, and certification-standard evidence produced through this campaign underpin multiple ongoing customer programmes, including the BRM B23 Energic, CAE’s transition toward all-electric pilot training platforms, and the hybrid-electric Dash 8 demonstration programme with Pratt & Whitney Canada.
With more than 20 years of electric aviation experience, six electric aircraft designed, built, and flown, and over 2,000 fully electric flight hours accumulated with zero battery-related incidents, H55 brings the operational depth required to execute certification-grade programmes — not merely comply with them.
André Borschberg, Executive Chairman and Co-Founder of H55, said:
«H55 was created with a single objective: to make electric aviation certifiable, not just possible. From the outset, that meant designing systems around aviation safety standards and preventing failure while optimising performance.
This milestone validates that choice. Electric aviation can be engineered to meet the same certification discipline and safety expectations as conventional aircraft. At H55, disciplined, focused ambition is what translates certification into real market adoption and scalable commercial impact.»
Rob Solomon, Chief Executive Officer of H55, added:
«This achievement marks a structural inflection point for electric aviation. By completing the first
EASA-agreed battery module test campaign, H55 has addressed the most critical technical bottleneck on the certification path, materially reducing risk for aircraft manufacturers, operators, insurers, and investors.
By providing monitoring, active and passive protections of every individual cell, H55 transforms the propulsion battery from a ‘black box’ of latent risk into an actuarially transparent asset, establishing cell-level monitoring as the non-negotiable threshold for both regulatory type certification and fleet insurability. What’s most exciting, is the engine-like business model this enables for H55.
In parallel, through a joint multi-authority Certification Management Team, EASA and the U.S. Federal Aviation Administration (FAA) have committed to mutual recognition of agreed means of compliance for ongoing programs. Test results will be transferred to the FAA, providing a basis for supporting and accelerating H55’s U.S. certification activities and market presence.»
Sébastien Aymon-Demont, Co-Founder and Chief Technology Officer of H55, commented on battery module architecture and the cell level approach
«By designing protection, monitoring, and mitigation directly at cell level, rather than relying on pack-level assumptions, we have built a fundamentally different Energy Storage System. This cell-level architecture not only enables effective protection at the point of origin, but also allows us to optimise battery efficiency, performance, and long-term reliability — all of which are essential for certifiable electric aviation.»
About the Test Campaign
To execute this campaign, H55 produced more than 100 test articles drawn from its approved and audited product configuration. The six-month effort covered environmental, safety, functional, and performance conditions under worst-case failure modes, including authority-witnessed thermal runaway tests without propagation. Collectively, these results confirm readiness for certification and industrial deployment, including:
- Completion of the certification campaign for propulsion battery modules
- Confirmation that H55 remains the only organisation holding both EASA Design Organisation Approval (DOA) and Production Organisation Approval (POA) for electric propulsion systems
- Production of series-manufacturing-conforming propulsion battery modules
- Completion of the first EASA-validated cell characterisation campaign for certified propulsion battery systems
- The safety demonstrated during testing completed in December 2025 is now being documented into final test reports, which H55 is submitting to EASA for formal acceptance in Q1 2026
Clearing the Certification Bottleneck to Enable Scalable Commercialisation
Electric aviation scales on certification. By completing this regulator-approved propulsion battery module test campaign, H55 has materially reduced the primary constraint that determines which electric aviation technologies can commercialise. Formal demonstration of containment under worst-case failure scenarios materially reduces regulatory and insurance exposure, unlocking repeatable, certifiable deployment across aircraft programs while ensuring aircraft-level safety.
With this achievement, H55 is transitioning from validation to scale. A single, certifiable Energy Storage System architecture can now be deployed across multiple platforms, allowing certification evidence to compound as revenue potential expands without proportional increases in development cost, supporting repeatable deployment across fleets and aircraft lifecycles rather than one-off programme deliveries. With propulsion battery-module certification risk now addressed, electric aviation moves from speculative development to a certifiable industrial category — reshaping how programs are evaluated, financed, and insured.
About H55
H55 is a Swiss-based company specialising in certified electric propulsion and certification-grade energy storage systems for aviation. The company enables electric aviation to scale by transforming commercial lithium cells into aviation-safe Energy Storage Systems that regulators approve, insurers underwrite, and OEMs can deploy repeatedly as a certified propulsion platform across aircraft programs. This is achieved through independent cell characterisation, rigorous incoming screening, redundant safety architectures, and regulator-aligned testing designed around worst-case failure scenarios.
Founded as the technological legacy of the Solar Impulse program, H55 builds on more than two decades of hands-on electric aviation experience. The company has designed, built, and flown multiple electric aircraft and accumulated more than 2,000 hours of fully electric flight with zero battery-related incidents–providing the operational depth required to execute certification-grade programs, not merely comply with them.
To support its next phase of industrialisation and international growth, H55 has strengthened its executive leadership team. Rob Solomon, Chief Executive Officer, brings experience in scaling technology-driven platforms and is leading H55’s expansion in the United States. Walt Lifsey,
Chief Operating Officer, brings deep experience building and scaling technology companies at the operational level and oversees industrial operations, certification execution, and production readiness, ensuring a reliable transition from certified design to repeatable, series manufacturing.
H55’s leadership structure supports a platform-based approach, allowing certification evidence to compound across programmes, reducing adoption risk, and supporting capital-efficient deployment of electric and hybrid-electric aircraft.
Media Contact
Axelle Krummenacher+41 79 464 22 [email protected] www.h55.chH55 SARoute de l’Aéroport 10 1950 SionSwitzerland
Annex — Technical Fact Sheet
Certification-Grade Battery Module Safety Test Campaign
Since 2017, H55 has maintained continuous engagement with global regulatory authorities to establish a certification-grade framework for propulsion batteries. Through this sustained interaction, H55 has developed an evidence-based, regulator-aligned understanding of propulsion battery failure behaviour, grounded in systematic risk evaluation across the full operational lifecycle.
This understanding was developed through the design, construction, and flight operation of fully electric aircraft, supported by extensive development and certification test activities. Rather than adapting assumptions from adjacent industries, H55 deliberately built its own engineering capability, production systems, and test infrastructure, enabling direct, regulator-approved demonstration of compliance.
Regulatory Foundations
H55 holds Design Organisation Approval (DOA), confirming the organisational competence, qualified personnel, and technical capability required to certify electric propulsion systems.
H55 also holds Production Organisation Approval (POA), validating robust production and quality systems capable of manufacturing fully conforming aerospace products.
Battery Cell Characterisation and Risk Definition
H55 has invested substantial resources in battery cell characterisation, generating proprietary datasets that enable aerospace-grade cell qualification, validation of all plausible failure modes, and definition of worst-case scenarios formally accepted by authorities.
Summary of Key Outcomes
- Confirmation that certification-grade lithium propulsion battery systems for aviation are achievable today
- Formal demonstration of containment of worst-case battery failure scenarios, including thermal runaway
- Resolution of the primary technical uncertainty at the battery-module certification level
- Establishment of an authority-accepted means of compliance applicable across multiple aircraft programs
- Validation of a multi-layer propulsion battery safety architecture
With battery-module certification risk now addressed, electric aviation transitions from experimentation to scalable, certifiable commercial deployment.
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Tengo varias preguntas sobre esto a ver si me podiais aclarar:
-¿Puedo hacer un ingreso regular de 800 euros y me cobran 0euos de comisiones y mto.?
-¿Puedo sacar el dinero cuando quiera?,¿todo ó tengo entendido que hay que mantener un mínimo de 100 euros los 30 meses?
-No necesito pero me obligan a sacar una tarjeta de débito que me cuesta 11 euros el primer año y 22 euros la renovación, también otra de credito que me cuesta 0 euros el primer año y 35 euros la renovación.
¿Hay que mantenerlas 13 meses?
¿Puedo cancelar alguna de ellas desde el principio?
¿Puedo cancelar alguna de ellas antes de la renovación?
¿Hay alguna tarjeta de credito más barata?
Aparte de la cuenta nómina he visto que también que para que te den la tv también se puede sacar una cuenta tarifa plana básica o personal, ¿sabeis algo de estas cuentas?¿que requisitos tienen?
Muchas gracias a todos por responder
Yo fui a informarme y te cuento. Únicamente admiten los ingresos regulares en el caso de que seas autónomo. Te abren una cuenta Tarifa Plana Cero que está exenta de comisiones y presenta alguna ventaja más. Sobre dejar un mínimo de saldo en la cuenta no es necesario, pero sí te obligan a mantener varias tarjetas durante los 30 meses con un coste aproximado de 100 euros anuales.
hola buenas!
me llamo javi y estoy dudando de que banco, me puede dar mas beficios, sin sorpresas por domiciliar la nomina, ya que llevo años en la caixa y no me da nada ningun beneficio. es mas me rechazan los prestamos que solicito, ni siquiera una targeta de credito, por alegan de que siempre esta a cero la cuenta, yo cuando cobro la nomina dejo el dinero para los pagos, y saco el resto, pues no me fio, de que un dia me quede sin dinero, ya que esta todo muy mal, corre riesgo mi dinero o mis ahorros en el banco?? muchas gracias y un cordial saludo.
javi
NO TE EXTRAÑE QUE NO TE DEN LOS PTMOS, PORQUE LO QUE VEN ES QUE NO TIENES CAPACIDAD DE AHORRO PORQUE SIEMPRE DEJAS LA CTA. EN MINIMOS, ASI NINGUN BANCO TE LO VA A CONCEDER. TAMBIEN ES VERDAD QUE LA CAIXA, COMO TANTAS OTRAS CAJAS, TIENE EL PUÑO CERRADO PARA LOS RIESGOS, PARA REMONTAR. NO TE PREOCUPES, QUE POR UNA NOMINA NO CREO QUE NINGUN BANCO SE COJA LAS MANOS. LOS QUE SE TIENEN QUE PREOCUPAR SON LOS QUE TIENEN DÉPÓSITOS Y FONDOS EN BANCOS DE DUDOSA ACTIVIDAD. LA GENTE SE PIENSA QUE PORQUE LES DEN UN 7% YA ES UN GRAN BANCO Y SE EQUIVOCAN. LO QUE LES PASA ES QUE EL BANCO DE ESPAÑA LES PRESTA EL DINERO MAS CARO Y POR ESO OPTAN POR CONSEGUIRLO EN EL MERCADO MONETARIO, Y SI EL BANCO DE ESPAÑA NO SE FIA DE ELLOS, VA Y SE FIA LA GENTE. QUE LOS BANCOS NOES LA ADMON PUBLICA, ABRAN OS OJOS.
Hola , cuando vallais al banco queos dejen lo que hay que pagar de irpf y de iva sobre el valor de la tele ya que en la mayoria de bancos esto no lo dicen y luego llagan las sorpresas .A mi ya me ha pasado con la promoción del portatil y nunca me hablaros de esto . Cuidado
Yo he estado calculando y la tele entre unas cosas y otras te sale sobre unos 250euros que tampoco regalan tanto .Hay oficinas en las que han dado la occión de poner un dinero a plazo fijo a 12meses de 9300euros o 6800euros a 18 meses.
No es ningún chollo. Te obligan a contratar dos tarjetas de crédito que tienes que pagar porque las tienes que mantener 13 meses por lo menos y además llevan unos costes desproporcionados si las utilizas. En total, no usando las tarjetas y anulándolas una vez cumplidos los 13 meses puedes ahorrar unos 38 euros con respecto al precio de ese televisor en una gran superficie. Y además luego vendrá que te cobran para hacienda la retención correspondiente, por lo que probablemente incluso en las mejores condiciones te cueste más que si ahorras un poco y lña compras directamente.
Creó que teneis toda la razón, que aqui no te regalan nada, ya que a mí me paso con unas sartenes que regalaban el banco bilbao, que al final entre el irpf y el descuento de Hacienda, al final me salieron caras, así es que no os tomen el pelo, que al final siempre esta la letra pequeña que es la que nos joroba, por no decir otra cosa.
Yo saque el portatil y ahora me he sacado la TV LCD 32. Estas promos no hay que declararlas. No es obligado domiciliar nomina. Si, meter en la cuenta 800€ todos los meses en un margen de 10 dias. Cero matacero, pero cero,cero, cero de gastos de mantenimiento, ni por recibos, ni por el correo a casa, ni por transfer. Las tarjets gratis el 1er año. Resto fuera. Dadas de baja Menos la de debito. Banesto no pierde nada, ganar, gana clientes que es el proposito de esta promo. Precio de portatil y tv 32 en mercao unos 900€ los 2. En banest 197€. Los hay mejores, nos ha jodio! portatiles a 1200€, TV LCD 32 a 1000€. Señores, son lentejas. Relacion calida-precio-promo es cojonud…….Un saludit a los viandantes.
hola , no se si llegara mi comentario pero os voi a esplicar. esto es el cuento de la abuela. mira yo tengo el portatil. y he cogio tab la tele, pero sabeis ke?, me ha pasado de todo. os esplico. primero me cobran 74 euros y 25 euros de unas tarjetas que yo no las he visto aparecer por mi casa , me cabreo con el banco. llamo y pido esplicaciones. me dicen que van en la promocion, nunca jamas nadie me informo de las tarjetas, no me devuelven el dinero. me cabreo y me dicen que llame aun numero de tefono para darlas de baja, se pasan los dias, intentamos darlas de baja. largas y larga, que si este numero de tefono que si el otro bla bla bla. conseguimos hablar y nos dicen que tenemos que cambiar el contrato a tarifa plana o no se ke historias, llamando al banco se pasan los dias, largas y largas. me cabreo y estoi por suspender todo, me dicen que si lo quiero cambiar y dar de baja las tarjetas que nunca he tenido. tengo que pagar comisiones cada seis meses de doce y pico euros, y que si no quiero que me cobren comisiones tengo que ir todos los meses al banco a hacerlo yo, ufffffffffff.aun hay mas. me dan de baja y me hacen la tarifa plana, se equivocan un monton de veces. me hacen pasar muchos cabreos.y al final cuando llego a casa me han cobrado 25, 50 euros. y llamo por telefono y se lo digo , me dicen claro por dar de baja la otra cuenta , la madre que los pario. ladrones. o sea os digo que la tele no sale regalada, se la cobran y muy bien cobrada , nadie da nada por nada. en cuento termine de pagar lo que debo quito todas las cuentas del banesto.espero que alguien me lea y que me conteste gracias .
Banesto ha jodido a mi marido y a un amigo tambien. Para mi, despues de Banco de Andalucía son los peores. Y quieran creerlo o no ni la television ni el portátil te lo regalan.. como no cumplas cualquiera de las reglas te sancionan con 300 y pico de euros.. porque nos hemos mudado de casa y los recibos domiciados se cortaron «temporalmente» la sancion fue de mas de 300 euros.. y el cabreo q te llevas cuando ves lo q te han descontado y luego para ir a reclamarlos.. y como te tratan !! en fin.. espero que Banesto sea lo primero en undirse en el fin del mundo!!
CHOLLO!!!!!!!!!JAJAJAJAJA…….NO ES NINGUN CHOLLO!!!!!!! te cobran 100 € de gastos de manipulacion, mas 150 € en tarjetas durante 2 años, mas 6 € mensuales de mantenimiento de cuenta durante 30 meses, total que pagas 630 Euros por un ordenador o una TV que su valor seguro que no llega a 500 €. Y encima si vas a cancelar la cuenta cuando cumples los 30 meses requeridos te hacen esperar dos horas para decirte que no tienen linea de telefono para dar de baja la cuenta, cosa que no para nunca cuando vas a contratarlo. Y del trato que dispensan….., es el mismo que si vas con un fajo de billetes de 500 € por los CO-JONES
Banesto «premia», menuda falacia…
No hay ningún banco que premie a nadie.
BANESTO NECESITA NUESTRAS NÓMINAS, Y EN CUANTO VAS UN POCO JUSTO, COMO BUENOS JUDÍOS Y ÁVAROS QUE SON, TE ACOSAN Y MACHACAN, Y TE SACAN HASTA LAS ENTRAÑAS EN COMISIONES.
DESPUÉS EL ESTADO APOYA A LOS BANCOS, CON LA EXCUSA DE QUE SI CAEN LOS BANCOS CAEMOS TODOS. LOS BANCOS NECESITAN UN BOICOT DE VEZ EN CUANDO, PARA QUE NO NOS RESTREGUEN POR LA CARA SUS BENEFICIOS.
POR CIERTO, LO QUE MÁS FASTIDIA A UN BANCO ES UNA RECLAMACIÓN EN LA OFICINA DEL CONSUMIDOR Y OTRA AL BANCO DE ESPAÑA.
ES POR DAR PISTAS…