Niedernach

Niedernach power plant

Bay near KW-Niedernach (March 1, 2017)

Niedernach is one of the 28 districts of the municipality of Jachenau in Upper Bavaria. The wasteland lies on the Niedernach Bay of the same name, the easternmost part of the Walchensee , at the original outflow of the lake, where the Jachen begins its course through the Jachental until it flows into the Isar at Lenggries- Fleck. However, this drain has been blocked by a weir of the Walchensee power plant since 1924 .

Niedernach comprises three houses, the numbering of which is adapted to that of the Jachenau community: No. 55, 55 1/2 and 55 1/3.

As of the state of the census on May 25, 1987, six residents were found in two buildings with living space. This typified the place as a wasteland.

history

House No. 55 goes back to the Raut Niedernach, a clearing that was pinned (leased) as pasture from the Benediktbeuern monastery to the millers in Jachenau-Mühle as early as 1450 . It was not until 1703 that Lorenz Krinner from Mühl 51 in Jachenau was allowed to set up a settlement there with the approval of the monastery.

House No. 55 1/2 was built in 1912 and has been a restaurant since 1937. The house no. 55 1/3 is the building of the 1951 power plant.

power plant

The Niedernach power plant has been part of the Walchensee power plant network since June 1951 and is also operated by Uniper Kraftwerke GmbH (formerly E.ON Wasserkraft ). It uses the water of the Rißbach tunnel , which begins at the state border south of Vorderriß , crosses under the Isar with a culvert at Ochsensitz and reappears after a total of approx. 7 km tunnel at the Alpenbach weir above Niedernach. At the end of another approximately 150 m long tunnel and an approximately 215 m long canal, the water is fed into the power plant in a pressure pipe over the last 300 m and over a drop height of 21 m. Excess water can also flow into the lake via a wide canal staircase. With a maximum flow of 12 m³ / s, the power plant has an output of 2.4  MW and an average annual production of around 10 million kWh . The building, built according to plans by Franz Hart , is a listed building.

literature

• Bayernwerk AG (ed.): Walchensee power plant . 1995 (information sheet).
• Uniper Kraftwerke GmbH (ed.): A technological jewel in the Alps | The Walchensee power plant . ( PDF ).

Individual evidence

1. ^ Jost Gudelius: The Jachenau . Jachenau 2008, ISBN 978-3-939751-97-7 , p. 133
2. ^ Official register of places for Bavaria, territorial status: May 25, 1987, Munich, 1991 , page 68
3. ↑ Johannes Nar: The Jachenau . Augsburg 1933, p. 51

Web links

Commons : Rißbach-Überleitung  - album with pictures, videos and audio files

Coordinates: 47 ° 35 '  N , 11 ° 24'  E