People – WattElse, partenaire de votre stratégie énergétique
Bureau de consultance belge spécialisé en développement de projets en énergie renouvelable et en stratégie énergétique.
économie d'énergie, énergie, énergie durable, développement durable, audit, stratégie énergétique
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“Success belongs to everyone but it’s teamwork that deserves all the credit.”

Franck Piccard


Mathieu van Gehuchten


Having worked in the field of renewable energy for 12 years, Mathieu founded WattElse in 2015. An economics graduate (UCL, BE) with an MBA in Energy and Environment (Twente, NL), he is passionate about sustainable development.

His strong points: commitment, creativity, seeing the big picture.

Alexandre Ziegler

Energy Consultant

An environmental engineer, Alexandre has worked in the agrifood sector and in renewable energy. His passion is the environment and agriculture.

His strong points: curiosity, commitment.

Alexis Rasson

Energy Consultant

Civil engineer, Alexis has worked 7 years in the industrial area. Being passionate about ecology, Alexis is creating energy strategies following the needs of the customers.

His strong points : technical knowledges, optimism.

Frédérique Fauvarque

Energy & communication consultant

Frédérique began her career as Consultant for start-ups. For more than 7 years, she has been advising companies and territories in the field of security of energy supply. Graduated in Commercial Sciences, she holds a master’s degree in Environmental Management. Convinced of the opportunities offered by the energy transition, she provides to WattElse its expertise in project management, communication and energy strategy.

Her strong points: creative, pragmatic, listening.

Sabrina Darvai

Administrative assistant

A human science graduate, Sabrina has worked at different administrative and executive secretariat in the private sector during 15 years. She joined the team in 2017 and she plays a large part in the good working of WattElse.

Her strong points: sense of responsibility, conscientious, integrity.