Jochenstein power plant
|Jochenstein power plant|
|place||Untergriesbach / Engelhartszell|
|Kilometers of water||km 2203.3|
|owner||Donaukraftwerk Jochenstein AG (DKJ)|
|Start of operation||20th August 1956|
|Listed since||File no. D-2-75-153-105|
|Bottleneck performance||132 megawatts|
height of fall
|Expansion flow||2,050 m³ / s|
|Standard work capacity||850 million kWh / year|
|Turbines||5 Kaplan turbines|
|Generators||5 synchronous generators|
The Jochenstein power plant is a run-of-river power plant in the Danube on the German-Austrian border, which derives its name from the nearby Jochenstein rock . The technical systems are located in the area of the market communities Untergriesbach ( Lower Bavaria ) and Engelhartszell ( Upper Austria ).
For the construction, the Donaukraftwerk Jochenstein AG (DKJ) was founded as a stock corporation under German law; this happened immediately after the conclusion of a corresponding government agreement between the Federal Republic of Germany and the Republic of Austria in February 1952. Within six months, architect Roderich Fick prepared a building design ready for tender , so that at the end of 1952 the construction work for the main structure and the storage space began of the Jochenstein power plant could be started. Because of the floods in 1954, part of the power plant had to be blown up before it was commissioned.
The first three machine sets were commissioned in the spring of 1955, the fourth machine set in May 1956. On August 20, 1956, after a construction period of 45 months, the fifth machine set was put into operation. Half of the pantographs are the Rhein-Main-Donau AG and the Austrian Verbund AG .
Since July 1, 1999, the management of the Donaukraftwerk Jochenstein AG has been with Grenzkraftwerke GmbH , which is also responsible for the management of the ÖBK power plants on the upper and lower Inn .
2013 was carried out a share exchange between Verbund AG (Austria) and the German power company E.ON . E.ON's shares in eight Bavarian hydropower plants, including the Jochenstein power plant, were fully owned by Verbund AG.
There have been plans for the Riedl pumped storage power plant for several decades . A building permit was applied for in 2012; a permit appears possible for 2021.
The Jochenstein power plant has an expansion capacity of 132 MW and an average annual working capacity of 850 million kWh . All five machine sets are Kaplan turbines with three-phase synchronous generators. The turbines delivered by Voith in 1952 have a diameter of 7.4 meters. The movable elements of the weir are located near the Austrian bank, the power house with the turbines in the middle of the river near the Jochenstein rock , while the ship lock and switchgear are on the Bavarian side. The level of the headwater at normal water level is 290.0 meters above sea level , the length of the waterway is around 27 km and the head is 9.78 m.
Public traffic and use as a bridge
Pedestrians and cyclists have been able to use the power station to cross the Danube here all year round during opening hours (6 a.m. to 10 p.m.) since around 1990. There are two stairs with a total of 81 steps to cross the lock system. A simple pushing aid made of aluminum sheet was installed next to the stairs for bicycles. On the Austrian side there is an information center for visitors with free entry at the first weir.
- Gerhard A. Stadler, Manfred Wehdorn , Monika Keplinger, Valentin E. Wille: Architektur im Verbund (= series of research in Verbund 100). Springer Verlag, Vienna et al. 2007, ISBN 978-3-211-75795-6 .
- Borgmeyer, Anke: The Jochenstein Danube Power Plant - A top technical product from the post-war period, new in the list of monuments . In: Monument preservation information of the Bavarian. State Office for Monument Preservation No. 151 March 2012,
- Data and facts. Technical parameters. Federal Waterways and Shipping Administration , archived from the original on November 29, 2014 ; Retrieved October 8, 2013 .
- Jochenstein run-of-river power plant. Verbund AG , accessed on October 7, 2013 .
- Bavaria: They stood in the water until they fell over. In: zeit.de. July 15, 1954, accessed December 9, 2014 .
- Riedl energy storage facility. Planning and implementation. Donaukraftwerk Jochenstein AG, accessed on September 14, 2013 .
- Voith, Kaplan turbines ; Access: 27. February 2015