TerraVoltThe R&D subsidiary of BEST ENERGIES group, develops optimization and energy valorization solutions using renewable resources (biomass, heterogeneous urban and/or agricultural waste, waste heat, etc.).
Our projects are developed with an eco-design approach that prioritizes circular economy and local resources: the units are designed for autonomous use in addition to existing energy distribution systems
We have a commercial policy that favors partnership relationships, ensuring that all key local factors (economic, social, environmental, etc.), which are well-known by the partner, are taken into account in the choice of the technological system to be implemented. We therefore prioritize a step-by-step approach to avoid the partner committing prematurely to risky choices, leading to disappointing or even failed results."

Our history

Our Team

Emmanuel Bigot

Founder of TerraVolt
Graduated from Ecole des Mines de Paris (ENSMP)
President-Founder of BEST ENERGIES in 1991.

olivia ferreira-da-fonseca
Management and accounting

Titulaire d'une Licence en management des organisations
7 années d'expériences dans la gestion et la comptabilité

Aristide Dejean
Innovation director

Engineer-Doctor from 2iE in Energy Engineering and Renewable Energies.
10 years of experience in project management on the valorization of residues and waste by pyrogasification.

Yves Deray

Civil and Urban Engineering Engineer from INSA.
12 years of experience in geothermal exploitation and 14 years in project management.


Chief Executive Officer

Graduated from IAE de Paris.
16 years of experience as Human Resources Manager at TerraVolt and BEST ENERGIES.

matthieu estivin
Chef d'EXploitation

Electromechanic Engineer.
19 years of experience in commissioning and operation.

Charlie stephan
Project Manager

Engineer-Doctor from Mines ParisTech in Process Engineering.
8 years of experience in the valorization of residues and waste by pyrogasification.

Digital Communications Officer

Holds a Master's degree in Information Systems Security.