Prater power plant

from Wikipedia, the free encyclopedia
Prater power plant
Construction of the Prater power plant (view from Widenmayerstraße)
Construction of the Prater power plant (view from Widenmayerstraße )
location
Prater power plant (Bavaria)
Prater power plant
Coordinates 48 ° 8 '16 "  N , 11 ° 35' 28"  E Coordinates: 48 ° 8 '16 "  N , 11 ° 35' 28"  E
country Germany
place Munich
Waters Great Isar , Isar
f1
power plant
owner Stadtwerke München , Green City
operator Praterkraftwerk GmbH
construction time 2009-2010
Start of operation 2010
technology
Bottleneck performance 2.5 megawatts
Expansion flow 34 m³ / s
Standard work capacity 10.5 million kWh / year
Turbines Kaplan bulb turbine
Others
Website www.praterkraftwerk.de

The Prater power plant is a run-of-river power plant in Munich that was commissioned in 2010 . The builder and operator is Praterkraftwerk GmbH , a joint subsidiary of Stadtwerke München and Green City .

The power plant is located in the river arm known as the " Great Isar " west of the Praterinsel . The Prater weir was built here to branch off the water for the factory stream that feeds the Eisbach in the English Garden . After the weir and a few concrete cascades , the large Isar reunites with the Small Isar , which flows around the Praterinsel on the east side. The difference in height between the weir and the cascades is used to generate energy. In order not to change the appearance on site, the power plant was mostly built underground. After the inlet structure directly at the western end of the weir, the pressure pipe runs almost completely under the river arm.

The power plant itself is located under the last cascade stage and is not visible from the outside. The power plant equipped with a Kaplan bulb turbine has an output of 2.5 MW.

In February 2010 the installation of the turbine and generator began. The impeller diameter of the specially adapted Kaplan bulb turbine is approx. 2.3 m. The turbine weighs approx. 30 t. The generator comes from Enercon , is a multi-pole low-speed runner and therefore does not require an intermediate gear. Instead, the inhomogeneous alternating current generated by the synchronous generator is first converted into direct current . The end product is then generated in special inverters according to the grid requirements, with 50 Hz and the desired reactive power factor (cos φ).

Web links

Individual evidence

  1. ↑ a b Praterkraftwerk GmbH: Concept → Planning. Archived from the original on October 26, 2012 ; accessed on January 22, 2016 .
  2. ↑ a b c d e f Praterkraftwerk GmbH: The Praterkraftwerk. Retrieved February 11, 2016 .
  3. ↑ a b c Praterkraftwerk GmbH: News. Archived from the original on November 1, 2013 ; accessed on January 22, 2016 .
  4. ↑ Green City: Construction progress on the Prater power plant - turbine is delivered , February 24, 2010