Translations:Betriebsregeltypen/75/en

• Practical example:

This example can be shown by means of the practical operating conditions at the Wiehl dam. The Wiehl dam serves primarily for drinking water supply and flood protection, secondarily for energy production. In addition a minimum flow of 100 l/s has to be guaranteed in the lower course of the Wiehl dam. The first priority is the drinking water supply. In order to ensure a sufficient water quality in the reservoir, additional charges used for energy production are stopped when the reservoir content falls below about 70% of the total content. As both the minimum charge and the turbine charge are discharged into the Wiehl, it would also be superfluous to maintain the minimum charge if water is simultaneously discharged through the turbine. This results in a case of a reduction of a discharge A (minimum levy) by the amount of levy B (turbine) as described above.