Investigations about the influence of the pumped storage hydropower plant Geesthacht on the fish populations of the river Elbe

Vattenfall Europe Generation AG (since October 2015: Vattenfall Hydropower GmbH) operates a pump storage hydropower plant (PSP) in Geesthacht, Germany. It takes its processing water from the River Elbe which is then pumped into a reservoir located 85 m above the river's water level. By releasing water through turbines from the reservoir back into the river, electric energy is being produced. As part of an investigation and a subsequent report, it was to be determined if the state of the art of aquatic protecting system was full field and if necessary, what measures could be taken to minimize potential damage to fish and other aquatic organism.