Disclosed is an energy recovering system having a first pump for pumping a fluid from a first lower level at a first lower potential energy to a second higher level corresponding to a second higher potential energy, and a turbine being located at a third level corresponding to a third potential energy being smaller than said second higher potential energy, wherein the turbine is fluidly connected to the first pump by a connecting pipe such that the fluid can be fed by the first pump via the connecting pipe from the first lower level and via the second higher level to the turbine located at the third level, where the turbine is connected to the first pump in such a way that a recovery-energy recovered from the fluid by passing through the turbine (T) is used for a drive of the concurrently operating first pump.
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