Geothermal potential of the subsurfacePotentiel géothermique du sous-sol

Potentiel géothermique du sous-solGeothermal potential of the subsurface

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This dataset from the Bordeaux Métropole open data portal maps the geothermal potential of the subsurface across the metropolitan area, structured on a 100m x 100m grid. It provides information on resource availability, ranges of maximum aggregated flow rates by depth interval, and estimated thermal conductivity by depth interval. Published as open data by Bordeaux Métropole, it is accessible without authentication and can support planning and feasibility studies related to geothermal energy exploitation within the metropolitan territory.Dictionnaire Public Ce jeu de données surfaciques, représente à la maille 100m x 100m, le potentiel géothermique du sous-sol de la métropole bordelaise (disponibilité de la ressource, gamme de débits maximum agrégés par plage de profondeur, conductivité thermique estimée par plage de profondeur,...

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Data schema (21 fields)

Filterable via the API (19)

gidgeom_erridentq50mq100mq200mconductivite50mconductivite200mconductivite100mcapacite50mcapacite200mcapacite100mpotentiel_sondepotentiel_fossecontrainte_techcontrainte_reglementdisponibilitecdatemdate

Click a field to see example values.

Fill	Field	Type	Description
—	gid	int	Primary key identifier for the record.Clé primaire
—	geo_point_2dGeo Point	geo_point_2d	Geographic centroid coordinates of the grid cell.Geographic centroid coordinates of the grid cell.
—	geo_shapeShape	geo_shape	Polygon geometry of the 100m x 100m grid cell.Polygon geometry of the 100m x 100m grid cell.
—	geom_errGeom err	text	Error code indicating geometry validity issues, if any.Code d'erreur géométrique : Liste des valeurs possibles : 9999 : Polygone compose et / ou à sections multiples 9998 : Linéaire compose et / ou à sections multiples 9996 : La géométrie contient des informations LRS 9995 : Nombre de dimensions différent de 2 ou 3 9994 : Présence d'un arc de cercle 9000 : Erreur autre 13343 : Polygone de moins de 4 points 13349 : Polygone papillon 13350 : Deux éléments d'un polygone archipel se touchent 13351 : Deux éléments d'un polygone archipel se touchent 13356 : Point double 13366 : Combinaison invalide d'intérieur / extérieur d'un polygone 13367 : Orientation invalide d'intérieur / extérieur d'un polygone
—	ident	text	Identifier of the grid cell.Identifiant de la maille
—	q50m	text	Maximum flow rate range achievable within 50m depth.Gamme de débits maximum envisageable dans les 50m : Liste des valeurs possibles : 0 : Aucun débit 0-10 : Jusqu'à 10 m3/h 10-30 : Entre 10 m3/h et 30 m3/h SUP30 : Plus de 30 m3/h
—	q100m	text	Maximum flow rate range achievable within 100m depth.Gamme de débits maximum envisageable dans les 100m : Liste des valeurs possibles : 0 : Aucun débit 0-10 : Jusqu'à 10 m3/h 10-30 : Entre 10 m3/h et 30 m3/h SUP30 : Plus de 30 m3/h
—	q200m	text	Maximum flow rate range achievable within the first 200m depth.Gamme de débits maximum envisageable dans les 200 premiers mètres sous le sol : Liste des valeurs possibles : 0 : Aucun débit 0-10 : Jusqu'à 10 m3/h 10-30 : Entre 10 m3/h et 30 m3/h SUP30 : Plus de 30 m3/h
—	conductivite50m	text	Estimated thermal conductivity within 50m depth.Conductivité thermique estimée dans les 50m
—	conductivite200m	double	Estimated thermal conductivity within 200m depth.Conductivité thermique estimée dans les 200m
100%	conductivite100m	double	Estimated thermal conductivity within 100m depth.Conductivité thermique estimée dans les 100m
61.6%	capacite50m	double	Estimated thermal capacity within 50m depth.Capacité thermique estimée dans les 50m
100%	capacite200m	double	Estimated thermal capacity within 200m depth.Capacité thermique estimée dans les 200m
100%	capacite100m	double	Estimated thermal capacity within 100m depth.Capacité thermique estimée dans les 100m
100%	potentiel_sondePotentiel sonde	boolean	Indicates a potential zone for underground energy storage via borehole probes.Zone potentielle de stockage souterrain d'énergie sur sonde
100%	potentiel_fossePotentiel fosse	boolean	Indicates a potential zone for underground energy storage via pits.Zone potentielle de stockage souterrain d'énergie en fosse
100%	contrainte_techContrainte tech	text	Technical drilling constraint identified for the zone, such as karst or unconsolidated ground.Contrainte technique de forage identifiée : Liste des valeurs possibles : KARST : Karst TERRAINS_NON_CONSOLIDES : Terrains non consolidés TERRAINS_NON_CONSOLIDES_KARST : Terrains non consolidés + karst NON : Absence de contrainte
100%	contrainte_reglementContrainte reglement	boolean	Indicates whether a regulatory constraint has been identified.Contrainte réglementaire identifiée
100%	disponibilite	text	Availability level of the geothermal resource in the zone.Disponibilité de la ressource : Liste des valeurs possibles : EXCELLENTE : Excellent disponibilité de la ressource AVEC_PRECAUTION : Ressource disponible avec précaution
100%	cdate	datetime	Date the record was created.Date de création
100%	mdate	datetime	Date the record was last modified.Date de modification

Schema captured from opendatasoft 2 days ago.

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Sample data (5 records)

Record 1gid: 135436 · q50m: 10-30

{
  "gid": 135436,
  "q50m": "10-30",
  "cdate": "2023-12-31T23:00:00+00:00",
  "ident": "LP316",
  "mdate": "2025-03-20T14:25:43+00:00",
  "q100m": "10-30",
  "q200m": "SUP30",
  "geom_err": null,
  "geo_shape": {
    "type": "Feature",
    "geometry": {
      "type": "Polygon",
      "coordinates": [
        [
          [
            -0.5223115,
            44.9927133
          ],
          [
            -0.5222549,
            44.9918138
          ],
          [
            -0.5209873,
            44.991854
          ],
          [
            -0.5210439,
            44.9927535
          ],
          [
            -0.5223115,
            44.9927133
          ]
        ]
      ]
    },
    "properties": {}
  },
  "capacite50m": 2.2,
  "capacite100m": 2.2,
  "capacite200m": 2,
  "geo_point_2d": {
    "lat": 44.99228365,
    "lon": -0.5216493999999992
  },
  "disponibilite": "EXCELLENTE",
  "conductivite50m": "2.2",
  "contrainte_tech": "TERRAINS_NON_CONSOLIDES",
  "potentiel_fosse": true,
  "potentiel_sonde": true,
  "conductivite100m": 2.3,
  "conductivite200m": 2.4,
  "contrainte_reglement": false
}

Record 2gid: 90439 · q50m: 0

{
  "gid": 90439,
  "q50m": "0",
  "cdate": "2023-12-31T23:00:00+00:00",
  "ident": "HR199",
  "mdate": "2025-03-20T14:25:41+00:00",
  "q100m": "10-30",
  "q200m": "10-30",
  "geom_err": null,
  "geo_shape": {
    "type": "Feature",
    "geometry": {
      "type": "Polygon",
      "coordinates": [
        [
          [
            -0.6646064,
            44.8961793
          ],
          [
            -0.6645476,
            44.8952799
          ],
          [
            -0.6632823,
            44.8953217
          ],
          [
            -0.663341,
            44.8962211
          ],
          [
            -0.6646064,
            44.8961793
          ]
        ]
      ]
    },
    "properties": {}
  },
  "capacite50m": 2.2,
  "capacite100m": 2.1,
  "capacite200m": 2,
  "geo_point_2d": {
    "lat": 44.89575050589775,
    "lon": -0.6639443257725436
  },
  "disponibilite": "EXCELLENTE",
  "conductivite50m": "2.2",
  "contrainte_tech": "KARST",
  "potentiel_fosse": true,
  "potentiel_sonde": true,
  "conductivite100m": 2.1,
  "conductivite200m": 2.4,
  "contrainte_reglement": false
}

Record 3gid: 64863 · q50m: 0-10

{
  "gid": 64863,
  "q50m": "0-10",
  "cdate": "2023-12-31T23:00:00+00:00",
  "ident": "FL143",
  "mdate": "2025-03-20T14:25:31+00:00",
  "q100m": "0-10",
  "q200m": "SUP30",
  "geom_err": null,
  "geo_shape": {
    "type": "Feature",
    "geometry": {
      "type": "Polygon",
      "coordinates": [
        [
          [
            -0.7319912,
            44.8416563
          ],
          [
            -0.7319314,
            44.840757
          ],
          [
            -0.7306674,
            44.8407995
          ],
          [
            -0.7307272,
            44.8416989
          ],
          [
            -0.7319912,
            44.8416563
          ]
        ]
      ]
    },
    "properties": {}
  },
  "capacite50m": 2.2,
  "capacite100m": 2.3,
  "capacite200m": 2,
  "geo_point_2d": {
    "lat": 44.84122792578676,
    "lon": -0.7313292883401508
  },
  "disponibilite": "EXCELLENTE",
  "conductivite50m": "2.2",
  "contrainte_tech": "TERRAINS_NON_CONSOLIDES_KARST",
  "potentiel_fosse": false,
  "potentiel_sonde": false,
  "conductivite100m": 2,
  "conductivite200m": 2.1,
  "contrainte_reglement": false
}

Record 4gid: 51839 · q50m: 0-10

{
  "gid": 51839,
  "q50m": "0-10",
  "cdate": "2023-12-31T23:00:00+00:00",
  "ident": "EH319",
  "mdate": "2025-03-20T14:25:30+00:00",
  "q100m": "0-10",
  "q200m": "SUP30",
  "geom_err": null,
  "geo_shape": {
    "type": "Feature",
    "geometry": {
      "type": "Polygon",
      "coordinates": [
        [
          [
            -0.5078022,
            44.8219365
          ],
          [
            -0.507746,
            44.8210371
          ],
          [
            -0.5064822,
            44.821077
          ],
          [
            -0.5065384,
            44.8219765
          ],
          [
            -0.5078022,
            44.8219365
          ]
        ]
      ]
    },
    "properties": {}
  },
  "capacite50m": 2.2,
  "capacite100m": 2.1,
  "capacite200m": 2,
  "geo_point_2d": {
    "lat": 44.821506775739245,
    "lon": -0.5071421883371835
  },
  "disponibilite": "EXCELLENTE",
  "conductivite50m": "2.2",
  "contrainte_tech": "TERRAINS_NON_CONSOLIDES_KARST",
  "potentiel_fosse": false,
  "potentiel_sonde": false,
  "conductivite100m": 1.9,
  "conductivite200m": 2.1,
  "contrainte_reglement": false
}

Record 5gid: 102731 · q50m: 0-10

{
  "gid": 102731,
  "q50m": "0-10",
  "cdate": "2023-12-31T23:00:00+00:00",
  "ident": "IT171",
  "mdate": "2025-03-20T14:25:41+00:00",
  "q100m": "SUP30",
  "q200m": "SUP30",
  "geom_err": null,
  "geo_shape": {
    "type": "Feature",
    "geometry": {
      "type": "Polygon",
      "coordinates": [
        [
          [
            -0.701697,
            44.9201862
          ],
          [
            -0.7016376,
            44.9192869
          ],
          [
            -0.7003718,
            44.9193291
          ],
          [
            -0.7004312,
            44.9202284
          ],
          [
            -0.701697,
            44.9201862
          ]
        ]
      ]
    },
    "properties": {}
  },
  "capacite50m": 2.2,
  "capacite100m": 2.2,
  "capacite200m": 2,
  "geo_point_2d": {
    "lat": 44.91975765000001,
    "lon": -0.7010344000000001
  },
  "disponibilite": "EXCELLENTE",
  "conductivite50m": "2.2",
  "contrainte_tech": "TERRAINS_NON_CONSOLIDES_KARST",
  "potentiel_fosse": true,
  "potentiel_sonde": false,
  "conductivite100m": 2.1,
  "conductivite200m": 2.4,
  "contrainte_reglement": false
}

Live sample captured at profiling time — values may have changed upstream.

Verification Status

Using the API

Configuration

Base URL: https://opendata.bordeaux-metropole.fr/api/explore/v2.1/catalog/datasets/eg_geothermie_s

License

Licence Ouverte 2.0 (France / Etalab)Open

✓ Redistributable
✓ Attribution required

Query examples

curl -s 'https://opendata.bordeaux-metropole.fr/api/explore/v2.1/catalog/datasets/eg_geothermie_s/records?limit=20' -H 'Accept: application/json'

First 20 records of the dataset as JSON.

Uses the Opendatasoft Explore v2.1 syntax — supports select, where, group_by and order_by.

Full API documentation ↗

Rate limits

50 000 req/day

per ipmeasured

observed 2 days ago

Dataset

Volume & freshness

Records

95k

95126

Last upstream update

7 days ago

2026-10-17

License

No license declared upstream.

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JSON

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