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Deep dives

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

Powered byTERRA 2100

Map layersWorldwide physical waterways · loading river pages

Loading map data 0/7

Country view

River or basin

Pumped-storage hydro · grid battery

Happurg

under constructionGermany · closed loop, no river attached

Turbine capacity: 160 MW
Energy storage: 0.9 GWh
Gross head: -
First unit: -

Offline since 2011 when the upper basin floor failed; Uniper is rebuilding it for a return around 2028

Nameplate figures and coordinates: Wikipedia (de) pumped-storage list · 49.4872, 11.4747

Map layersexpand

seasonal below area no shared status