Skip to content
Get in touchFR
Celsius consultant

AlexandreVeilly

Bilan Carbone® engineer - Head of carbon studies

A Polytech Paris-Saclay engineer and head of carbon studies at Celsius, Alexandre leads the technical methodology for organisational Bilan Carbone® assessments and diagnostic projects for industrial SMEs and mid-sized companies. His expertise covers rigorous quantification, sector orders of magnitude, boundary definition and comparison of methodological standards: Bilan Carbone® ABC, GHG Protocol and BEGES.

Write to AlexandreLinkedIn

1 published article, latest on 12 Apr 2026

Portrait of Alexandre Veilly
Education
Polytech Paris-Saclay engineering graduate
Expertise
Bilan Carbone®, scope 3, quantification and orders of magnitude
Standards
Bilan Carbone® ABC, GHG Protocol, BEGES
Clients
Industrial SMEs and mid-sized companies, multiple sites
Publications

Articles by Alexandre

1 article
Frequently asked questions

Common questions

The questions we hear most often about Alexandre’s work and how to start a project.

Organisational Bilan Carbone®, scope 3 (in French) methodology, boundary definition and comparison of standards: Bilan Carbone®, GHG Protocol (in French) and BEGES. As head of carbon studies, he ensures methodological consistency across industrial SME projects.
Because methodological choices, including operational versus financial boundaries, treatment of biogenic emissions and product allocation, affect the final result more than the quality of the emission factors used. Alexandre’s studies team ensures that these decisions are documented, justified and reproducible.
In 2 stages: an initial overview using Base Empreinte monetary ratios to map hotspots, followed by detailed physical analysis, using supplier data and product LCAs, of the 3 to 5 categories that matter most. The method is explained in our scope 3 guide (in French).
Request a scoping discussion through the contact page. Alexandre works on Celsius projects where methodological complexity calls for a dedicated specialist, typically first consolidated Bilan Carbone® assessments across multiple sites or the transition to CSRD.
The Celsius team

Read articles by our other experts