Skip to content
Database entryUsesLevel 5 of 6 organisationOrganisation, level 5 of 6Calculated with 22 entries, levels 1, 4 and 5Database structure

Mid-cap company of 500 people, 1 year

AI use at work of the 500 people, occupation by occupation. Projet Celsius estimate.

  • "Developer, 1 year" accounts for 19% of emissions in this scenario.
  • Moderate use: 26 kgCO2e; intensive: 620 kgCO2e, with the other settings unchanged.
  • Out of scope: employees' personal use, licences bought for everyone, server manufacturing and model training.
Calculated with

Breakdown of emissions by item

Occupations and activities

Machine operations and data centre

150 kgCO2e in total: 320 kWh of electricity × 458 gCO2e/kWh (servers worldwide). Each bar splits the emissions between the entries of a category.

Inputs of the calculation 21

PUE of the data centre, Read 1,000 tokens, Write, with reasoning, Write 1,000 tokens, Generate an image, Second of video, Transcribe one minute, Write an email, Quick question, Presentation of 10 slides, Web search with an AI, Summarise a meeting, Code suggestion, Handle a customer request, Manager or executive, 1 year, Consultant, 1 year, Developer, 1 year, Graphic designer, 1 year, Videographer, 1 year, Office worker, 1 year, Salesperson, 1 year

How the calculation is built

AI use at work by the 500 people, occupation by occupation, and the AI services of a company of this size, including an assistant on its documentation, counted according to the share of companies that have them. Occupations based on employment by sector in France (Eurostat, 2024), services based on Insee (2025).

Comparison with other organisations

See the full list
Mid-cap company of 500 peoplethis entry150 kgCO2e

Logarithmic axis: each tick is 10 times the previous one.

Characteristics

Unit1 organisation, 1 year
Default locationworld, 458 gCO2e/kWh (Ember 2025, life cycle); 11 other locations to choose from
CountedAI use at work by the 500 people and, on average, process automation, meeting transcription, the documentation assistant and, in services, automated customer service
Not countedemployees' personal use, licences bought for everyone, server manufacturing and model training
Statusestimated
All the characteristics identifier, version, rule for the value, sources, licence
IdentifierIA-0403, projetcelsius.com/en/ai/database/IA-0403/
Version0.1 of 2 November 2026
CategoryOrganisations, one organisation, one year
Choice of the selected valuedatabase calculation from the entries this one is made of, at the quantities of the unit
Sourcescalculation of the database
LicenceCC BY 4.0
Projet Celsius, environmental strategy consultancy

We support companies that account for AI in their Bilan Carbone®

Visiter Projet Celsius ↗