Organic photovoltaic cell technology (OPV for Organic PhotoVoltaic) is the eco-responsible transformation of light energy into directly usable electricity. It is based on polymers from organic chemistry: semiconductor polymers sensitive to light.

Héole has taken the best advantage of science to develop eco-responsible products at the cutting edge of technology.

We no longer need to plunder the planet for its resources!


  • Flexible, fine and light:
    30 times lighter than a conventional solar panel, it fits on curved surfaces and can be rolled up: it can fit on previously unused supports
  • Semi-Transparent:
    it is made up of ultra-thin layers whose unit of measurement is the nanometer, which makes it possible to capture light energy on both sides
  • Efficient even in low light:
    It produces energy even on a cloudy day, from early morning to late at night!
  • Environmentally friendly:
    Low in energy to manufacture, it does not use rare materials and is easy to recycle
  • Low-carbon process:
    they are to date the only carbon-free photovoltaic solution

It is the dream technology to design the solar sail!


The energy conversion efficiencies of these organic semiconductor devices are in constant progress. The energy efficiency of OPVs has jumped from year to year. They will become an essential technology for the production of clean energy because light is an inexhaustible resource and its exploitation by OPVs does not impact the planet.

The overall energy balance of Organic cells (OPV), taking into account the ecological impact of their production, their manufacture and their recycling, is very quickly totally positive. The organic quality of the processes used by HÉOLE makes it possible to recover in a very short time the energy consumed for its manufacture and that which will have to be for its recycling, unlike other solar technologies commonly used for solar panels.

The HÉOLE project is strongly part of the energy transition process.
The performance prospects of OPVs and their very low environmental footprint make them the technology of the future for the energy transition.

Our expertise

Our team concentrates multiple and complementary expertise in the fields of:

  1. organic photovoltaics (OPV),
  2. light engineering,
  3. on-board electricity,
  4. navigation and shipbuilding,

After having worked on the technical constraints inherent in our organic solar sail, we are continuing the work of optimization and integration.

We are launching our test program on competitive offshore racing boats, a sport heavily invested in protecting the planet.
Objective: the Route du Rhum 2022!


At sea

  • Flexible sail
  • Rigid sail
  • Covering surfaces, even vertical

In the air

The photovoltaic envelope is the key to the autonomy of the airships of tomorrow.

On earth

  • Mobility
    – Power supply for temporary or perennial, mobile or fixed constructions (eg military camps or field hospitals)
    – Supply of charging stations
  • Buildings
    – Windows, fabrics, facades