Vianden

Pumped-storage power plant

Facts and figures

Power plant location Vianden, Luxembourg
Power plant type Pumped-storage power plant
Commissioned in 1964
Head 266.5 to 291.3 meters
Water flow 325 m3/sec (pump operation),  511.5 m3/sec (turbine operation) 
Total electrical output 486 MW (pump operation), 1,294 MW (turbine operation) 

Most powerful pumped-storage power plant on the German grid

Société Electrique de l’Our S.A., an incorporated company under Luxembourg law, operates the pumped-storage power plant (PSP) in Vianden, run-of-river hydroelectric stations on the Moselle and Our rivers as well as windfarms in Luxembourg. The main shareholders are the Grand Duchy of Luxembourg and RWE Power, each holding 40.3%. By contractual arrangement, use of Vianden pumped-storage power station is the preserve of RWE Power. The RWE power plant portfolio can thus avail of up to 1,296 MW of turbine capacity. 

The Vianden pumped-storage power plant comprises a cavern power plant, a shaft power plant (machine 10) and a separate cavern for machine 11. 

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