To the edge of space with solar energy: SolarStratos

Data transmission, Ruggedness

As an official partner of SolarStratos, a project to send the first manned solar plane to the stratosphere, our connectivity solutions are helping an ambitious idea take flight. By combining high-performance connectivity with ingenuity and innovation, we’re helping push the limits of solar aviation to the edge of space.

The partnership

SolarStratos aims to revolutionize solar-powered transport and shape the future of aviation— which means facing daunting technical challenges in an extreme environment. As an official partner, Fischer Connectors is helping address those challenges.


Drawing upon more than 65 years of expertise in high-performance connectors and cable assemblies, we work with the SolarStratos team to:

  • Develop customized connectivity solutions with an optimum weight/ performance ratio
  • Transmit large volumes of data from the plane to earth
  • Ensure reliability and safety in extreme environments
The three technological partners in front of the façade of Fischer Connectors’ world headquarters in Saint-Prex, Switzerland (from left to right): Raphaël Domjan, SolarStratos Initiator & Pilot; Jonathan Brossard, Fischer Connectors Group CEO; Roland Loos, SolarStratos CEO

The project


The SolarStratos plane is propelled solely by solar energy, backed by a Li-ion battery. It will be the first piloted solar-powered aircraft to enter the stratosphere, and the first solar-powered twin-seater commercial aircraft in history.


The project is led by SolarStratos’ founder and pilot Raphaël Domjan, and is supported by an international team of engineers, a former astronaut, pilots, meteorologists and doctors. On the five-hour mission, Domjan will wear an astronaut’s pressurized suit powered uniquely with solar energy – a global first.

The impact

Our partnership combines technology, innovation and experience to reimagine what is considered possible in solar-powered aviation. Together, we’re creating energy-efficient solutions that will shape the future of transportation while protecting the environment for generations to come.

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