{
  "id": "IA-0502",
  "version": "0.1",
  "date": "2026-11-02",
  "moteur": "0.3.1",
  "designation": "Grande ville de 500 000 habitants, 1 an",
  "titre_court": "Grande ville (500 000)",
  "description": "L'usage de l'IA de 500 000 habitants à la moyenne française : usage personnel, études et travail. Une grande ville compte plus de cadres et d'étudiants que la moyenne, et Eurostat mesure un usage personnel 29 % plus fréquent en ville : son usage est sans doute plus élevé.",
  "categorie": {
    "code": "monde",
    "nom": "Territoires"
  },
  "etage": {
    "code": "monde",
    "numero": "5",
    "nom": "Territoires"
  },
  "famille": {
    "code": "villes",
    "nom": "Villes types"
  },
  "unite": "1 territoire · an",
  "grandeur": "electricite",
  "type": "recette",
  "statut": "estimé",
  "repose_sur": {
    "releves": 0,
    "conventions": 0,
    "hypotheses": 1
  },
  "valeur": {
    "electricite": {
      "valeur": 206024000,
      "basse": 187563000,
      "haute": 263133000,
      "unite": "Wh",
      "fourchette": "propagee",
      "publie": false
    },
    "co2e": {
      "valeur": 94418800,
      "basse": 85958100,
      "haute": 120591000,
      "unite": "gCO2e",
      "publie": false,
      "lieu": "monde",
      "gCO2e_par_kWh": 458.29
    },
    "facteur": null,
    "recomposition_Wh": 206024000
  },
  "lieux": {
    "monde": {
      "libelle": "Dans le monde",
      "gCO2e_par_kWh": 458.29,
      "co2e_gCO2e": 94418800
    },
    "france": {
      "libelle": "En France",
      "gCO2e_par_kWh": 41.44,
      "co2e_gCO2e": 8537640
    },
    "ue": {
      "libelle": "Dans l'Union européenne",
      "gCO2e_par_kWh": 209.9,
      "co2e_gCO2e": 43244400
    },
    "etats-unis": {
      "libelle": "Aux États-Unis",
      "gCO2e_par_kWh": 384.4,
      "co2e_gCO2e": 79195600
    },
    "allemagne": {
      "libelle": "En Allemagne",
      "gCO2e_par_kWh": 329.65,
      "co2e_gCO2e": 67915800
    },
    "irlande": {
      "libelle": "En Irlande",
      "gCO2e_par_kWh": 256.54,
      "co2e_gCO2e": 52853400
    },
    "pays-bas": {
      "libelle": "Aux Pays-Bas",
      "gCO2e_par_kWh": 253.56,
      "co2e_gCO2e": 52239500
    },
    "pologne": {
      "libelle": "En Pologne",
      "gCO2e_par_kWh": 588.6,
      "co2e_gCO2e": 121266000
    },
    "suede": {
      "libelle": "En Suède",
      "gCO2e_par_kWh": 35.26,
      "co2e_gCO2e": 7264410
    },
    "norvege": {
      "libelle": "En Norvège",
      "gCO2e_par_kWh": 28.11,
      "co2e_gCO2e": 5791340
    },
    "suisse": {
      "libelle": "En Suisse",
      "gCO2e_par_kWh": 39.22,
      "co2e_gCO2e": 8080260
    },
    "finlande": {
      "libelle": "En Finlande",
      "gCO2e_par_kWh": 57.47,
      "co2e_gCO2e": 11840200
    }
  },
  "parametres": [],
  "reglages": [
    {
      "dimension": "adoption",
      "actuel": "courant",
      "valeurs": [
        {
          "cle": "sobre",
          "libelle": "Usage sobre",
          "defaut": false,
          "electricite_Wh": 34503400,
          "co2e_gCO2e": 15812600
        },
        {
          "cle": "courant",
          "libelle": "Usage courant",
          "defaut": true,
          "electricite_Wh": 206024000,
          "co2e_gCO2e": 94418800
        },
        {
          "cle": "intensif",
          "libelle": "Usage intensif",
          "defaut": false,
          "electricite_Wh": 962059000,
          "co2e_gCO2e": 440902000
        }
      ]
    },
    {
      "dimension": "outillage",
      "actuel": "assistant",
      "valeurs": [
        {
          "cle": "assistant",
          "libelle": "Assistant conversationnel",
          "defaut": true,
          "electricite_Wh": 206024000,
          "co2e_gCO2e": 94418800
        },
        {
          "cle": "suite",
          "libelle": "IA dans la suite bureautique",
          "defaut": false,
          "electricite_Wh": 244353000,
          "co2e_gCO2e": 111984000
        },
        {
          "cle": "agent",
          "libelle": "Agents",
          "defaut": false,
          "electricite_Wh": 1682770000,
          "co2e_gCO2e": 771196000
        }
      ]
    },
    {
      "dimension": "classe",
      "actuel": "moyen",
      "valeurs": [
        {
          "cle": "petit",
          "libelle": "Petit modèle",
          "defaut": false,
          "electricite_Wh": 96245000,
          "co2e_gCO2e": 44108100
        },
        {
          "cle": "moyen",
          "libelle": "Modèle moyen",
          "defaut": true,
          "electricite_Wh": 229625000,
          "co2e_gCO2e": 105235000
        },
        {
          "cle": "grand",
          "libelle": "Grand modèle",
          "defaut": false,
          "electricite_Wh": 709759000,
          "co2e_gCO2e": 325276000
        }
      ]
    },
    {
      "dimension": "raisonnement",
      "actuel": "sans",
      "valeurs": [
        {
          "cle": "sans",
          "libelle": "Sans raisonnement",
          "defaut": true,
          "electricite_Wh": 206024000,
          "co2e_gCO2e": 94418800
        },
        {
          "cle": "moyen",
          "libelle": "Raisonnement moyen",
          "defaut": false,
          "electricite_Wh": 266922000,
          "co2e_gCO2e": 122328000
        },
        {
          "cle": "pousse",
          "libelle": "Raisonnement poussé",
          "defaut": false,
          "electricite_Wh": 801762000,
          "co2e_gCO2e": 367440000
        }
      ]
    },
    {
      "dimension": "taille",
      "actuel": "standard",
      "valeurs": [
        {
          "cle": "standard",
          "libelle": "Image standard",
          "defaut": true,
          "electricite_Wh": 206024000,
          "co2e_gCO2e": 94418800
        },
        {
          "cle": "grande",
          "libelle": "Grande image",
          "defaut": false,
          "electricite_Wh": 252217000,
          "co2e_gCO2e": 115589000
        }
      ]
    },
    {
      "dimension": "calage",
      "actuel": "mesures",
      "valeurs": [
        {
          "cle": "mesures",
          "libelle": "Calé sur les chiffres publiés",
          "defaut": true,
          "electricite_Wh": 206024000,
          "co2e_gCO2e": 94418800
        },
        {
          "cle": "bruts",
          "libelle": "Facteurs bruts",
          "defaut": false,
          "electricite_Wh": 271097000,
          "co2e_gCO2e": 124241000
        }
      ]
    },
    {
      "dimension": "duree",
      "actuel": "an",
      "valeurs": [
        {
          "cle": "an",
          "libelle": "Un an",
          "defaut": true,
          "electricite_Wh": 206024000,
          "co2e_gCO2e": 94418800
        },
        {
          "cle": "mois",
          "libelle": "Un mois",
          "defaut": false,
          "electricite_Wh": 17168700,
          "co2e_gCO2e": 7868230
        },
        {
          "cle": "jour",
          "libelle": "Un jour",
          "defaut": false,
          "electricite_Wh": 564449,
          "co2e_gCO2e": 258682
        }
      ]
    }
  ],
  "curseurs": [
    {
      "cle": "jours",
      "defaut": 220
    },
    {
      "cle": "secondes",
      "defaut": 5.4
    }
  ],
  "params": {
    "lieu": "monde",
    "adoption": "courant",
    "calage": "mesures",
    "classe": "moyen",
    "outillage": "assistant",
    "raisonnement": "sans",
    "secteur": "services",
    "taille": "standard",
    "t_mot": 1.6,
    "t_consigne": 40,
    "t_question": 100,
    "t_reponse": 400,
    "t_email": 240,
    "t_page": 640,
    "t_article": 1600,
    "t_document": 19200,
    "t_roman": 128000,
    "t_tolkien": 768000,
    "t_minute_parole": 240,
    "t_reunion": 17600,
    "t_page_web": 1600,
    "t_extrait": 320,
    "t_image_lue": 1100,
    "t_minute_audio_lue": 600,
    "t_minute_audio_ecrite": 1200,
    "t_ligne_code": 12,
    "t_fonction": 480,
    "t_fichier_code": 3600,
    "t_tableur": 9300,
    "t_consigne_systeme": 500,
    "part_utilisateurs": 0.25,
    "k_calage": 0.6556
  },
  "perimetre": {
    "court": "usage personnel, études et travail des habitants, à la moyenne française",
    "compte": "l'usage personnel, les études et le travail des habitants, à la moyenne française, centre de données compris",
    "non_compte": "les écarts de la ville à la moyenne : part de cadres, de jeunes et d'étudiants, usage plus ou moins fréquent selon la densité"
  },
  "recette": [
    {
      "id": "IA-0507",
      "designation": "France, 1 an",
      "role": "entree",
      "quantite": 0.00723778,
      "unitaire_Wh": 28465100000,
      "contribution_Wh": 206024000,
      "nature": "convention",
      "source": "insee-population-2026",
      "note": "La France ramenée à 500 000 habitants",
      "adresse": "https://projetcelsius.com/ia/base/monde/france/"
    }
  ],
  "lignage": [
    {
      "id": "IA-0507",
      "designation": "France, 1 an",
      "etage": "monde",
      "quantite": 0.00723778,
      "contribution_Wh": 206024000,
      "nature": "convention",
      "fait_de": [
        {
          "id": "IA-0511",
          "designation": "25 à 64 ans en France, usage personnel, 1 an",
          "etage": "monde",
          "quantite": 0.00649387,
          "contribution_Wh": 69807600,
          "nature": "mesure",
          "fait_de": [
            {
              "id": "IA-0074",
              "designation": "Usage personnel gratuit, 1 an",
              "etage": "activites",
              "quantite": 56729.9,
              "contribution_Wh": 54854300,
              "nature": "mesure"
            },
            {
              "id": "IA-0319",
              "designation": "ChatGPT Plus, 1 an",
              "etage": "activites",
              "quantite": 4933.04,
              "contribution_Wh": 14953300,
              "nature": "hypothese"
            }
          ]
        },
        {
          "id": "IA-0510",
          "designation": "Moins de 25 ans en France, usage personnel, 1 an",
          "etage": "monde",
          "quantite": 0.00649387,
          "contribution_Wh": 37558200,
          "nature": "mesure",
          "fait_de": [
            {
              "id": "IA-0074",
              "designation": "Usage personnel gratuit, 1 an",
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              "quantite": 22612.1,
              "contribution_Wh": 21864500,
              "nature": "mesure"
            },
            {
              "id": "IA-0074",
              "designation": "Usage personnel gratuit, 1 an",
              "etage": "activites",
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              "contribution_Wh": 7648530,
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            },
            {
              "id": "IA-0319",
              "designation": "ChatGPT Plus, 1 an",
              "etage": "activites",
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              "nature": "hypothese"
            },
            {
              "id": "IA-0319",
              "designation": "ChatGPT Plus, 1 an",
              "etage": "activites",
              "quantite": 687.831,
              "contribution_Wh": 2084990,
              "nature": "hypothese"
            }
          ]
        },
        {
          "id": "IA-0513",
          "designation": "Élèves et étudiants en France, études, 1 an",
          "etage": "monde",
          "quantite": 0.00649387,
          "contribution_Wh": 23113300,
          "nature": "hypothese",
          "fait_de": [
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              "id": "IA-0318",
              "designation": "Étudiant, 1 an",
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              "contribution_Wh": 15615500,
              "nature": "mesure"
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            {
              "id": "IA-0317",
              "designation": "Élève du secondaire, 1 an",
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              "nature": "hypothese"
            },
            {
              "id": "IA-0317",
              "designation": "Élève du secondaire, 1 an",
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              "contribution_Wh": 3539920,
              "nature": "hypothese"
            }
          ]
        },
        {
          "id": "IA-0071",
          "designation": "Développeur, 1 an",
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          "quantite": 3506.69,
          "contribution_Wh": 15237200,
          "nature": "hypothese",
          "fait_de": [
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              "id": "IA-0217",
              "designation": "Obtenir une suggestion de code",
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            {
              "id": "IA-0218",
              "designation": "Générer une fonction",
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            {
              "id": "IA-0209",
              "designation": "Faire une recherche web assistée par une IA",
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              "id": "IA-0201",
              "designation": "Avoir une conversation de 10 échanges",
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              "id": "IA-0042",
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            },
            {
              "id": "IA-0043",
              "designation": "Interroger un PDF de 30 pages",
              "etage": "taches",
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              "id": "IA-0219",
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          "id": "IA-0307",
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            },
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              "id": "IA-0207",
              "designation": "Résumer un document de 30 pages",
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              "id": "IA-0043",
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              "id": "IA-0205",
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              "id": "IA-0203",
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              "id": "IA-0214",
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      ]
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  ],
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  "conventions": [
    {
      "code": "C5",
      "nom": "Le lieu par défaut",
      "regle": "Sans autre information, les serveurs sont dans le monde, à l'électricité moyenne mondiale",
      "valeur": "monde",
      "alternatives": "les États-Unis, où tournent la plupart des grands assistants"
    },
    {
      "code": "C7",
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      "regle": "Le kilowattheure est celui du pays des serveurs, en cycle de vie, d'une seule source pour tous les pays",
      "valeur": "Ember et Our World in Data, 2025",
      "alternatives": "market-based, avec les contrats d'achat, affiché à côté quand il est publié"
    },
    {
      "code": "C8",
      "nom": "Deux chiffres significatifs",
      "regle": "Une valeur calculée s'arrondit à deux chiffres significatifs, une valeur publiée est reprise avec la précision de sa source ; le calcul garde toute la précision",
      "valeur": "2 chiffres",
      "alternatives": ""
    }
  ],
  "releves": [],
  "adresses": {
    "page": "https://projetcelsius.com/ia/base/monde/grande-ville-de-500-000-habitants/",
    "lien_court": "https://projetcelsius.com/ia/base/IA-0502/",
    "json": "https://projetcelsius.com/ia/base/monde/grande-ville-de-500-000-habitants.json",
    "markdown": "https://projetcelsius.com/ia/base/monde/grande-ville-de-500-000-habitants.md"
  },
  "licence": "CC BY 4.0",
  "citation": "Projet Celsius, Base Impact de l'IA, « Grande ville de 500 000 habitants, 1 an », IA-0502, version 0.1, 2 novembre 2026, projetcelsius.com/ia/base/IA-0502/ · CC BY 4.0."
}
