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H55’s mission is to bring electric propulsion solutions to enable the aviation industry to reach net zero CO₂ by 2050
H55 partners with its customers in tailoring and integrating its technology into any aircraft design
The H55 battery system is the pulse
of electric aviation
As the technological spin off of Solar Impulse, the first electric airplane to fly around the world, breaking 14 world records on distance, altitude and duration, the H55 team brings 19 years of experience, in developing, integrating and flight-testing electric propulsion systems on 4 electric airplanes.

Key products
& features
H55 works closely with its customers in defining overall system architecture and solving airplane integration challenges.
Certification
The certification of the production facility and processes with the production Organization Approval (POA)
Granted January 2022
The certification of the engineering organization with a Design Organization Approval (DOA)
GRANTED APRIL 2022
The type certificate of the EPS including propulsion and battery systems.
EASA type certificate, CS-23 category, expected BY 2024
Certification of the aircraft
EPS 100 kW customer, BRM Aero will have its electric e-trainer certified IN 2024
Customers
programs
H55 works on transforming existing airplanes through STC programs, electrifying existing designs for new airplanes, and developing propulsion and battery solutions for new fixed-wing, sTOL and eVTOL designs.
New open
positions
A Swiss company created in 2017 by the leadership team of Solar Impulse, André Borschberg, Sebastien Demont, and Gregory Blatt, H55 has accumulated design, development, certification and electric flight experience. Its proven track record in developing electric propulsion, battery packs and battery systems comes from having worked on and flown 2 Solar Impulse airplanes, the Twister Aero1 acrobatic aircraft, and the Bristell Energic.
At H55, you will work with a very forward-looking team who are changing the paradigms of air transportation. H55 is composed of highly skilled and talented engineers, entrepreneurs and managers, all like-minded professionals who understand how to how technological innovation can make air transportation cleaner, safer and affordable.
Our News
Get on board
Please feel free to contact us for any additional information you may regarding our products, customer solutions and employment positions at H55. We look forward to being in touch.
Your Contact
H55 S.A.
Route de L’Aéroport 10
1950 Sion, Switzerland
H55 S.A.
Route Chandoline 25E
1950 Sion, Switzerland
purchasing@h55.ch
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