Electricity use of Google and Microsoft
Electricity consumed by the company, in TWh per year
Electricity use of Google and Microsoft
Sources
Source: Google, 2026 report; Microsoft, data fact sheet 2026. projetcelsius.com/en/ai · CC BY 4.0
The analysis
- Google multiplied its consumption by 2.4 between 2021 and 2025, Microsoft by 3.4 between its fiscal years 2020 and 2025.
- In 2025, Google consumes 43.6 TWh, almost 1 tenths of French electricity.
- Google's increase, +37% in 2025, covers the period in which the energy of a question to Gemini was divided by 33: efficiency per query did not slow the total.
The figures
- Google: 18 TWh per year in 2021, 43.6 TWh per year in 2025.
- Microsoft: 11 TWh per year in 2020, 37 TWh per year in 2025.
Assumptions
- Electricity consumed by the company, data centres and offices.
- Microsoft publishes by fiscal year (July to June): its points are offset by 6 months relative to Google's.
- Microsoft does not publish, in the data sheet read, its 2021 and 2022 years.
- Not all the electricity is consumed by AI; neither of the 2 companies publishes this share.
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