Our aerostat

  1. 1. Helium Balloon
    The balloon is filled with helium and made with a gasproof multilayer plastic membrane tethered to the ground.
  2. 2. Battery and renewable energy management
    The renewable energy management system linking the solar panels to the batteries ensures the energetic autonomy (day/night) needed for the duration of the operation.
  3. 3. Solar panels
    Up to 500 W of embedded solar power production Silicon single-crystal technology
  4. 4. Embedded systems protection
    Aerodynamic and protective shell containing the embedded system(s).
  5. 5. Winch and anchor system
    Manual or electrical winch enabling winding/unwinding of the tether.


EONEF designs and manufactures multi-service air platform autonomous in energy. It is a tethered helium balloon capable of flying for weeks.
Our aerostats embed telecommunication and observation systems that are powered by ultralight solar panels.
By rapidly gaining height, our technology enhances the coverage of the embedded equipment. 

EONEF provides you with weeks of flight in full autonomy: no energy source required, with minimum human interaction.

We support you with end-to-end services:

  1. 1.
    Design or adapt a balloon for your needs
  2. 2.
    Integrate your embedded system onto our balloon
  3. 3.
  4. 4.
    Support on regulation
  5. 5.
    Procurement of helium on the flight site
  6. 6.
    Set up on site
  7. 7.

Use cases


Who we are?

EONEF is a company of Social and Solidarity Economy (SEE). We are committed to humanitarian aid, scientific missions and agents of change by connecting isolated territories.

Our vision?
A more resilient world thanks to better connected isolated areas

Supported by

BPI France
Paris Region
Le comptoir
Make sense
Startup leadership
Startup Sociales


Contact us