Pumped storage scheme Waldeck I (Waldeck, Edersee)
E.ON Wasserkraft operates the pumped storage schemes Waldeck I and Waldeck II near the Edersee lake.
At the time the survey was made, the pumped storage scheme Waldeck I was frequently being controlled in partial-load operation, so that the turbines, when required, would be faster on the networks under full load. In this partial-load operation, vibration occurred in the penstocks. IRS were commissioned as surveyors for investigating this vibration and to assess its effects on the penstocks' lifetime.