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Explore rivers and the systems around themFocused datasets and analytical stories

River statisticsLong-term percentiles, rainfall and basin comparisons.DroughtsHistorical drought timelines, research and source data.FloodsCurrent global events, named rivers and verified danger levels.Meanders & restorationRiver reconnection and revitalisation projects.DamsStrategic reservoirs, functions and live records.HydrostoragePumped-storage infrastructure across Europe.Nuclear & waterPlant availability and river-water constraints.

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Satellite reservoir status

Reservoir map loading

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Map layersWorldwide physical waterways · loading river pages

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Country view

River or basin

Pumped-storage hydro · grid battery

Erzhausen

operatingGermany · lower reservoir on the Leine

Turbine capacity: 220 MW
Energy storage: 1.1 GWh
Gross head: -
First unit: 1964

Lower Saxony's only large PSH, with its basin on the Selter ridge above the Leine

Nameplate figures and coordinates: Wikipedia (de) pumped-storage list · 51.8986, 9.9250

Map layersexpand

seasonal below area no shared status