OUr team

Our human size team is customer-focused, efficient and close to your projects.



The experts of WattElse have been active in the energy sector for several years and each member is a specialist in their field:


  • Engineers dealing with the technical aspects
  • Economists dealing with financial challenges
  • Legal experts specialise in urban planning, environmental and establishment of company laws
  • Communication specialists to promote your projectan popularise your energy strategy
Mathieu site internet

Mathieu van Gehuchten


Master in Economic Sciences (UCL)

MBA (Twente)

Committed, creative, overview


Alexandre Ziegler

Energy consultant

Master Bio-Engineer (GxABT)

Curious, precise, committed


Alexis Rasson

Energy consultant

Civil engineer (UCL)

Excellent technical skills, optimistic


Frédérique Fauvarque

Energy and communication consultant

Master’s degree in Business Management (ICHEC)

Creative, pragmatic, attentive


Sabrina Darvai

Administrative assistant

Diploma in Human Sciences

Sense of responsibility, conscientious, honest


Let’s have a coffee together