Schluchseewerk
| Schluchseewerk AG
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|---|---|
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| legal form | Corporation |
| founding | 1928 |
| Seat | Laufenburg , Germany |
| management | Stefan Vogt, Nicolaus Römer |
| Number of employees | 313 |
| sales | EUR 109.21 million |
| Branch | Power plant operation |
| Website | www.schluchseewerk.de |
| As of December 31, 2019 | |
The Schluchseewerk AG is the operator of five pumped storage facilities in the southern Black Forest in Baden-Wuerttemberg . The head office is in Laufenburg (Baden) .
The shareholders of Schluchseewerk AG are RWE (50%), EnBW (37.5%), Energiedienst AG (7.5%) and Energiedienst Holding AG (5%) (the latter are subsidiaries of EnBW).
history
Schluchseewerk AG was founded in 1928. Their headquarters were in Freiburg at Rempartstrasse 14-16. In 1931 the power plant in Hütten went online. While work on the Witznau power plant was delayed until 1943 as a result of the global economic crisis, work on the Waldshut power plant had to be completely stopped due to the Second World War in 1944. It could only be completed in 1951 (six years after the end of the war). The engineer and later Federal Cross of Merit Erich Pfisterer was involved in both projects . Also in 1951, the company took up the plans for the Wutachtalsperre and expanded them extensively. Due to concerns in the area of nature and environmental protection and broad resistance from the population, the state government overturned this project in 1960.
In 1967, it went underground power station Säckingen that by the Eggbergbecken is fed to the grid. At the same time, the Kühmoos load distribution / switchgear was put into operation as the control center for all pumped storage power plants operated by Schluchseewerk AG . In 1976, the Wehr cavern power station with the Wehra and Hornberg basins went online. As a result of renovation measures, the Schluchsee was lowered in 1983, which attracted numerous onlookers.
Schluchseewerk AG has been responsible for the technical and commercial management of the Albbruck-Dogern Rhine power station since 2004 . This run-of-river power plant was expanded by a weir power plant in December 2009 and supplies an average of 650 million kilowatt hours of electricity per year. The Waldshut pump storage plant uses the reservoir of the Rhine power plant as a lower basin (see below).
The head office was relocated to Laufenburg (Baden) at the end of 2006 .
Investments
Schluchsee group
The Schluchsee group is made up of three pumped storage power plants that are cascaded one behind the other and together form the largest hydropower complex in Germany. The average height of fall of the entire system is 610 m, the cumulative lug length 24.853 km and the amount of electricity generated annually 520 million kWh.
In turbine operation, due to the topographical gradient, water flows through pressure tunnels from the eponymous Schluchsee to the three electricity-generating power plants and finally reaches the Rhine at Albbruck . Conversely, water is pumped from the Rhine into the Schluchsee, 619 m higher, using electrical energy. The pressure tunnels have a diameter of more than four meters. They each have a moated castle . The moated castle of the lower level is more than 160 m high.
The following table lists the three pumped storage power plants with their associated storage basins and some technical data:
| power plant | Power in turbine / pump operation | medium height of fall | Upper basin (storage target) | Lower basin (storage target) | construction time |
|---|---|---|---|---|---|
| Houses ("upper level") | 100 MW / 100 MW | 200 m | Schluchsee (930 m asl) | Schwarza basin ( 723 m above sea level ), Alb basin ( 736.5 m above sea level ) | 1929-1931, 19 ??-1941 |
| Witznau ("intermediate level") | 220 MW / 128 MW | 250 m | Schwarzabecken ( 723 m above sea level ), Mettma basin ( 717.5 m above sea level ) | Witznau basin ( 474.5 m above sea level ) | 1939-1943 |
| Waldshut ("lower level") | 150 MW / 80 MW | 160 m | Witznau basin ( 474.5 m above sea level ) | Rhine reservoir of the Rhine power station Albbruck-Dogern together with the Aubecken (both 311 m above sea level ) | 1942-1951 |
Until the final completion of the power plant cascade or the intermediate level in Witznau, the Eichholz power plant was operated as a storage power plant between the upper and middle levels from 1931 to 1950 .
| power plant | Power in turbine operation | medium height of fall | Upper basin (storage target) | Lower basin | Operating time |
|---|---|---|---|---|---|
| Oak wood | 35 MW | 130 m | Schwarza Basin ( 723 m above sea level ) | none, drain directly into the Schwarza | 1931-1950 |
Hotzenwald group
The two independent pumped storage power plants located in the Hotzenwald form the so-called Hotzenwald group. Both are built using the cavern construction method, and the Bad Säckinger power plant was the first German pumped storage power plant using the cavern construction method.
The following table lists the two existing pumped storage power plants with their associated storage basins and some technical data:
| power plant | Power in turbine / pump operation | medium height of fall | Upper basin (storage target) | Lower basin (storage target) | construction time |
|---|---|---|---|---|---|
| Bad Säckingen | 360 MW / 300 MW | 400 m | Eggberg basin ( 700 m above sea level ) | Rhine reservoir Rhine power station Säckingen ( 289 m above sea level ), Rhine reservoir power station Ryburg-Schwörstadt ( 281 m above sea level ) | 1961-1967 |
| Weir | 910 MW / 980 MW | 625 m | Hornberg basin ( 1048 m above sea level ) | Weir basin ( 419 m above sea level ) | 1968-1976 |
The weir basin, dammed up by the Wehratalsperre , also has a small hydropower plant with a through-flow turbine and an output of 1,135 MW.
Atdorf pumped storage power plant
At the end of September 2008, the Schluchseewerk published plans for a new pumped storage power plant in the Hotzenwald , which will have an output of 1,400 megawatts and should be implemented by 2018.
At Atdorf , about 500 m south of the previous Hornberg basin ("Hornberg basin I"), Hornberg basin II was to be built as the upper basin of the new facility. The Hasel Basin in the Haselbach Valley between the weir district of Brennet and the mountain lake was to be created as the lower basin .
In April 2014, RWE AG, which has a 50% stake in Schluchseewerke AG, announced that it was withdrawing from the project, whereupon EnBW AG, which together with subsidiaries holds the other 50% in Schluchseewerk AG, will continue to operate the plan approval procedure on its own. On October 11, 2017, EnBW also announced that it would no longer pursue the project.
Others
Schluchseewerk AG also manages 14 storage basins, four of which are Rhine reservoirs.
The Kühmoos substation also belongs to the Schluchseewerk .
The houses stage has been running since March 17, 2017 with a provisional water permit. The Freiburg regional council has not yet decided on the new licensing of the Schluchsee / Häuser upper level.
literature
- Adolf Eisenlohr: The Schluchseewerk. In: Die Bautechnik , Volume 8, Issue 17 (April 18, 1930), pp. 259–263.
Individual evidence
- ↑ a b Annual financial statements as of December 31, 2019 in the electronic Federal Gazette
- ^ Schluchseewerk AG - shareholders. Retrieved September 19, 2015 .
- ^ Schluchseewerk AG - history. Retrieved September 19, 2015 .
- ↑ Hotzenwald Group. Retrieved September 19, 2015 .
- ^ Project of the century in the Hotzenwald In: Badische Zeitung , September 29, 2008, accessed on October 10, 2017
- ↑ EnBW is reorganizing the priority of storage projects: The Atdorf pumped storage project will not be pursued any further
- ↑ Water law proceedings upper level houses. Retrieved December 5, 2017 (German).
Web links
- Schluchseewerk AG
- Early documents and newspaper articles on the Schluchseewerk in the 20th century press kit of the ZBW - Leibniz Information Center for Economics .
Coordinates: 47 ° 33 ′ 26.5 ″ N , 8 ° 2 ′ 43.5 ″ E