Clément Reynaud
Co-founder of Projet Celsius, head of the Marseille office
Clément Reynaud supports the executives of SMEs and mid-sized companies in their low-carbon strategy. A PhD in nanophysics and engineer from the Institut d'Optique, he writes on Bilan Carbone® by sector: the hospital, the hotel, the industrial site, the university.
His articles on the Projet Celsius blog
6 articles · All his articles ↗
Explainer · 28 July 2026Where to live in France in 2050: the map, municipality by municipalityRead the article ↗
Practical guide · 14 April 2026What is the Bilan Carbone® of a hotel?
Practical guide · 14 April 2026How to carry out the Bilan Carbone® of an industrial site?
Practical guide · 6 September 2025What is the Bilan Carbone® of a hospital?
Practical guide · 6 September 2025Bilan Carbone® of a university or higher education institutionIn AI Impact
Clément Reynaud took part in scoping AI Impact at its launch, in October 2026. The idea of saying on the site how we ourselves use AI came from him.
He has also written on another digital use that consumes a lot of electricity: the carbon footprint of Bitcoin and Ethereum
His topics
- Bilan Carbone® by sector5 articles
- Climate change adaptation1 article
The AI Impact team
About →Across the hub
AI Impact DatabaseAll the figures, their methodology and their sources.
AI Ranking10 assistants rated out of 100: performance, ethics and environment.
AnalysesThe signed pieces: analyses, viewpoints, "Where does this figure come from?".
Charts and mapsThe reference visuals, with their data and sources.
ToolsOpen calculations, your assumptions on the left, the result on the right.
A question about a figure?
An error, a source to add, a methodology question, a press request: write to us. Guillaume Pakula, Clément Reynaud, Sébastien Pierfederici and Alexandre Veilly will reply.
Projet Celsius, which runs this hub, also helps companies measure and reduce the footprint of their AI use.
Accounting for AI in your Bilan Carbone® ↗
