Jochenstein power plant

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Jochenstein power plant
The Jochenstein power plant, on the left the weir
The Jochenstein power plant, on the left the weir
Jochenstein power plant (Bavaria)
Jochenstein power plant
Coordinates 48 ° 31 '6 "  N , 13 ° 42' 27"  E Coordinates: 48 ° 31 '6 "  N , 13 ° 42' 27"  E
country GermanyGermany Germany
BavariaBavaria Bavaria

AustriaAustria Austria

OberosterreichUpper Austria Upper Austria
place Untergriesbach / Engelhartszell
Waters Danube
Kilometers of water km 2203.3
Height upstream 290  m above sea level NHN
power plant
owner Donaukraftwerk Jochenstein AG (DKJ)
operator Grenzkraftwerke GmbH
construction time 1952-1956
Start of operation 20th August 1956
Listed since File no. D-2-75-153-105
Bottleneck performance 132 megawatts
height of fall
9.78 m
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.

See also

Web links

Commons : Kraftwerk Jochenstein  - Collection of images, videos and audio files


Individual evidence

  1. a b c d e f g h Data and facts. Technical parameters. Federal Waterways and Shipping Administration , archived from the original on November 29, 2014 ; Retrieved October 8, 2013 .
  2. a b c d e Jochenstein run-of-river power plant. Verbund AG , accessed on October 7, 2013 .
  3. Bavaria: They stood in the water until they fell over. In: July 15, 1954, accessed December 9, 2014 .
  4. Riedl energy storage facility. Planning and implementation. Donaukraftwerk Jochenstein AG, accessed on September 14, 2013 .
  5. Voith, Kaplan turbines ; Access: 27. February 2015