Schluchseewerk AG Menu switch You are here: Schluchseewerk AG > Where we are > Hotzenwald group > Säckingen power station The Säckingen cavern power station - great performance deep in the mountain The Säckingen cavern power plant has two special features: It was not only the first German pumped storage power plant to be built using a cavern, but also founded the Hotzenwald Group of Schluchseewerk AG. Its four machine sets are housed in an artificial cave (cavern) inside the Eggberg, which can be reached via a 1.5 kilometer long access tunnel. The cavern is 160 meters long, 23 meters wide and 33 meters high. The Eggberg basin is about 400 meters above it, from which the water can plunge vertically through an armored pressure shaft and drive up to four turbines. Conversely, if there is an excess of electricity, the basin is filled with water from the Upper Rhine using up to four pumps. On the other hand, the Eggberg basin collects available natural inflows for the production of renewable electricity. It is designed accordingly large - with a capacity of 2.1 million cubic meters of water, the mighty power plant turbines can be operated at full load for up to six hours - enough energy to bridge bottlenecks in the network quickly and in an ecologically sensible way. Die Maschinen des Kavernenkraftwerks Säckingen besitzen eine Generatorleistung von 360 MW und eine Pumpleistung von 296 MW. Der maximale Durchfluss beträgt 96 Kubikmeter pro Sekunde im Generator- und 67 Kubikmeter pro Sekunde im Pumpbetrieb. Das Kraftwerk erzeugt im Jahresmittel 400 Millionen Kilowattstunden Strom. Als Unterbecken für das Kavernenkraftwerk Säckingen dienen die Rheinstauräume der Rheinkraftwerke Säckingen und Ryburg-Schwörstadt. Der Unterwasserstollen mit dem Wasserschloss hat eine Länge von 2 Kilometern, der Durchmesser beträgt 5,8 Meter. Zufahrtsstollen Kraftwerk Säckingen Schluchseewerk AG Säckinger Straße 67 79725 Laufenburg (Baden) Telefonnummer +49 (0)7763 9278-0 +49 (0)7763 9278-0 Faxnummer +49 (0)7763 9278-70299 +49 (0)7763 9278-70299 Kontakt aufnehmen Rechtliches Impressum Datenschutz Cookie-Einstellungen Folgen Sie uns Partner © 2020 Schluchseewerk AG Your data security is important to us! Dear interested parties, by obtaining your permission to use cookies, we are also following our goal of making browsing our website as safe and easy as possible for you. Our cookies are primarily used to make it easier for you to tour our presentations or to identify technical problems. Do you agree? Then just click on "Accept". Thank you for your interest and trust. Essential Google Maps Accept all Save on computer Only accept essential cookies You can view and manage further details and options here. Cookie details Data protection imprint