Skip to contentSkip to content
Get in touchFR
  • BEGES
  • Transition plan
  • ADEME publication

Prepare your
statutory BEGES

Celsius prepares your greenhouse gas emissions report (BEGES) and transition plan. We organise data collection, document calculations and prepare the information to publish on the platform of ADEME, the French Agency for Ecological Transition.

Get in touch View the deliverables

Your contacts

  • Alexandre VeillyEngineer, carbon studies
  • Guillaume PakulaCo-founder, PhD in physics
06 77 04 76 44Book 30 minutes
Reply within 24 working hours
The obligation in brief

What is a BEGES?

The statutory greenhouse gas emissions report (Article L229-25 of the French Environmental Code) is mandatory for large companies and public bodies. It is published with a transition plan on ADEME's platform.

  1. CompaniesEvery 4 yearsMore than 500 employees250 in overseas territories
  2. Public bodiesEvery 3 yearsLocal authorities with more than 50,000 inhabitantsPublic institutions with more than 250 staff
  3. Penalty€50,000€100,000 for a repeat offence
Our services

From data collection to publication of the BEGES

We support organisations with their statutory greenhouse gas emissions report: scoping, data collection, calculation and preparation for publication. The work draws on your activities and the requirements applicable to your organisation.

  1. 1

    Checking the scope

    We examine the organisation's situation, the entities to consider and assessments already completed. This work defines the year studied, the data to gather and the publication timeline.

  2. 2

    Preparing or updating the BEGES

    We collect and analyse activity data to establish the emissions to include. Calculations, significant indirect emissions and methodological choices are explained in the file.

  3. 3

    Transition plan

    We examine actions already underway and prepare reduction measures with the teams. The plan specifies the resources envisaged and the monitoring information corresponding to the report scope.

  4. 4

    Preparing submission and monitoring

    We prepare information for publication and support submission. The materials provided make it possible to trace the data and organise the next assessment.

Deliverables

The components of your statutory report

Each project concludes with documents your teams can use and keep up to date. The previews below are fictional: they show the format of the documents.

Documented emissions report

Results, scope, method and sources needed to interpret the BEGES.

Organisation
Entities and sites included
Period
Reporting year and reference year
Emissions
Direct and indirect categories included
Justification
Documented data, sources and exclusions

Transition plan

Reduction actions, resources envisaged and monitoring arrangements prepared with teams.

Planned action
Emission category and measure concerned
Management
Responsible person and timeline
Resources
Resources to mobilise
Monitoring
Indicator and update arrangements

Publication file

Information and documents organised for submission on ADEME's platform.

Publication
Data and summary of the report
Transition plan
Actions selected by the organisation
Review
Consistency with the calculation report
Submission
Information prepared for ADEME
Our method

How a project unfolds

  1. Define the report scope

    We specify entities, activities and the reference year, along with work already available.

  2. Organise data collection

    We identify the data to gather and support your teams in collecting and checking it.

  3. Assess emissions

    We calculate emissions, document methodological choices and examine the most significant categories.

  4. Prepare the transition plan

    We develop actions with your teams and prepare the information for presenting and publishing the report.

Client projects

Statutory reports for public bodies

All our client projects
AP-HM

AP-HM

Bilan Carbone® of hospital activities and team awareness training.

View the client project

Centrale Méditerranée

Bilan Carbone® and an energy audit of the campus.

View the client project
Your contacts

Alexandre Veilly and Guillaume Pakula

Polytech Paris-Saclay engineer and head of carbon studies. He leads statutory emissions reports, from data collection to submission on ADEME's platform.

Speak with Alexandre 06 77 04 76 44Book 30 minutes

Reply within 24 working hours, initial 30-minute conversation.

Alexandre Veilly
Engineer, carbon studiesAlexandre Veilly
Guillaume Pakula
Co-founder, PhD in physicsGuillaume Pakula
Frequently asked questions

Frequently asked questions

The questions we are most often asked before starting a project.

We examine this assessment to identify reusable data and calculations. The work may involve extending the scope, preparing the transition plan or adapting the publication format. The two approaches are not assumed to be identical without this review.
Yes. Data collection and scope are adapted to the institution's activities and organisation. We prepare the work with the contacts who hold the data, considering the sector's particular features.
It may be included in the engagement, with information preparation and submission support. The proposal specifies the documents provided, the approvals expected from your organisation and the procedures covered.
We prepare a proposal after an initial discussion. It sets out the scope, the data to gather, the deliverables and the stages of the engagement. The quotation reflects the work to undertake and how your teams are organised.
Forest canopy
Bespoke

Most of our projects are tailored to your needs.

For any environmental measurement needs or other questions, please get in touch. An expert will be happy to reply.

Speak for 30 minutes
Our publications

Explore further

All our articles
RegulationBEGES France: mandatory GHG emissions report in 2026