Key figures
Key figureWorld · 2024Electricity consumed by data centres in 2024415TWhabout 1.5% of the electricity consumed worldwideAll uses, not AI aloneIEA, April 2025Key figureWorld · 2030Data centre electricity in 2030, baseline scenario945TWhAll uses, IEA scenarioIEA, April 2025Key figureWorld · 2025Electricity consumed by AI worldwide in 2025100 to 174TWh2 estimates, low and highSchneider Electric; GreenIT
Key figureOne question · 2025Carbon footprint of one Le Chat response, life cycle1.14gCO2ea page of text, full life cyclethe same answer: 45 mL of waterMistral Large 2, with Carbone 4 and ADEMEMistral AI, July 2025Key figureWorld · 2025Carbon intensity of world electricity458gCO2e/kWhLife cycle, AI Impact DatabaseEmber, 2026Key figureFrance · 2025Carbon intensity of electricity in France41.4gCO2e/kWhLife cycle, electricity generatedEmber, 2026Key figureFrance · 2022The digital sector's share of France's carbon footprint4.4%434 kgCO2e per person in France per year2022 data, 29.5 MtCO2eADEME, January 2025
Key figureOne question · 2025Electricity used by a text query to Gemini0.24Wh0.14 Wh the AI chips0.10 Wh the rest of the centreprocessors, memory, standby machines, coolingMedian of text queriesGoogle, August 2025Key figureOne question · 2025Electricity used by a written question to an AI0.3Wh0.24 Wh, Google0.34 Wh, OpenAIthe range published by providersA typical questionEpoch AI, February 2025Key figureOne question · 2024Electricity used by an AI-generated image2.9Whabout 15% of a phone charge (19 Wh)Average of open modelsLuccioni et al., 2024; EPAKey figureOne question · 2025Electricity used by a generated 5-second video90Wh300 written questions, or 31 imagesWAN 2.1, open generatorDelavande, Pierrard and Luccioni, 2025
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