RTE data portal - French Hydraulic Stock (Reservoir Fill Levels)
RTE (French transmission operator) open data catalog publishing weekly aggregated hydraulic stock (fill level of lake-type hydro reservoirs) in MWh, downloadable and via API after free registration.
data.rte-france.com
At a glance
- Region
- France (Europe)
- Coverage
- France
- Access
- Limited
- Category
- Company
- Last updated
- 2026
What's inside
- reservoir storage
What you can do with it
Typical work that data of this type supports.
- 01
Storage tracking
Follow storage and releases through the season.
Because it has: reservoir storage
- 02
Change over time
See how lakes and wetlands have grown or shrunk.
- 03
Operations
Support release and supply decisions.
Where AI adds value
Ideas for machine learning and AI agents built on this kind of data.
- 01
Storage from space
Estimate volume from satellite water area and altimetry.
- 02
Release decisions
Optimise releases against inflow forecasts.
- 03
Shrinkage alerts
Detect water bodies that are drying or being encroached.
Machine access and documentation
Open API
RTE Open Data REST API (registration required)
Licence: See source terms
Listed in our registry of open water APIs, which WaterDataGPT can query live.
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- BDLISA French Hydrogeological DatabaseEurope | Free
- CAMELS-FR: Large-sample hydroclimatic dataset for FranceEurope | Free
- data.gouv.fr: Stations hydrométriques (Métropole)Europe | Free
- data.ofb.fr: data.eaufrance CatalogueEurope | Free
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