|Power plant location||Vianden, Luxembourg|
|Power plant type||Pumped-storage power plant|
|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)
Facts and figures
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.