Translations:Betriebsregeltypen/20/en

• Dependence:

Primarily the current demand determines the withdrawal from the reservoir, although it is generally subject to temporal variations. The demand is often limited upwards by water rights or maximum withdrawal quantities, which refer to selected time horizons such as day, month, quarter, year or others. If one initially only considers the current demand, this is determined by the requirements of a water supplier and defines the demand on the storage facility. There is no reference to the content of the reservoir. However, whether the demand can actually be met depends on the current content of the reservoir. This connection is either given by the constructional structure of the withdrawal facility or for reasons of foresighted management. For example, if particularly low reservoir fillings are reached, it is advisable to throttle withdrawals in good time to avoid the reservoir running empty and thus complete failure during prolonged periods of low water . For this reason, there is usually a reserve space in every dam that is mainly used for drinking water supply, and special operating plans usually decide on its use.