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Your energy transition partner

Unique expertise on the energy market and regulation since 2007

The GreenYellow model is based on a disruptive idea: to enhance unused spaces of our clients by installing solar panels, and focus our development on green and local energy.
Since then, we have expanded our expertise to become the energy partner for businesses and institutions and we continue to expand internationally and to diversify our customer base.



“To face energy challenges, decision-makers should no longer have to choose between economic and ecological benefits. With GreenYellow, their energy transformation becomes both profitable and responsible.”

Otmane Hajji, President of GreenYellow

Otmane Hajji

Since 2007, GreenYellow's method has been proving its efficiency: Combining a comprehensive view of energy with an approach customized to the challenges of each client. To do so, our experts are present in every step of a project: Design, construction, financing, management, operation, and monitoring. All to ensure guaranteed performance over time.


The GreenYellow Executive Committee sharing the same passion

GreenYellow COMEX
Our Executive Committee: (from left to right) Gino Gauthier, General Manager in charge of Development and Partnerships - Karine Anne Huberfeld, General Secretary & General Counsel - Otmane Hajji, President and founder - Philippe Houins, General Manager in charge of operations and founder member - Jean-Baptiste Juery, Chief Financial Officer - Pascal Kertoubi, Group Human Resources Director 

Our company has grown at a brisk pace. The change in shareholding with the arrival of Ardian Infrastructure as a majority shareholder provides the company with the means and support necessary to pursue its ambitions:

  • Accelerate through external growth, assets and complementary companies.
  • Become a long-term operator, owning and operating its own assets.
  • And to expand its geographical coverage, with a strong acceleration in Europe within 5 years.


Les expertises de GreenYellow



Key figures

€1,4 billion

invested in photovoltaic solar installations and energy efficiency on our clients’ premises

1,170 MWc

power installed or being installed
(including our JV Reservoir Sun)



790 solar plants

in installed and under construction



1,070 GWh

of energy savings per year to our clients



3,300 EEAs*

*Energy Efficiency Agreement



500 charging points installed

1,150 under construction



Shift to profitable energy with GreenYellow!

Discover our corporate video