Kranzberg hydropower plant
| Kranzberg hydropower plant | ||
|---|---|---|
 |
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| location | ||
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| Coordinates | 48 ° 24 '56 " N , 11 ° 35' 49" E | |
| country | Germany Bavaria | |
| place | Kranzberg | |
| Waters | Amperkanal ( Amper ) | |
| power plant | ||
| owner | Hydropower plant Kranzberg eK | |
| operator | Hydropower plant Kranzberg eK | |
| construction time | 1906-1911 | |
| Start of operation | 1911 | |
| Listed since | 2009 | |
| technology | ||
| Average height of fall |
8.70 m | |
| Expansion flow | 40 m³ / s | |
| Turbines | 2 Francis turbines | |
| Generators | 2 alternators | |
| Others | ||
The Kranzberg hydropower plant is a run-of-river power plant on the Amper . The power plant, which opened in 1911, is located on the northern boundary of Kranzberg in the Upper Bavarian district of Freising . The electrical output of the power plant is 2.4 MW. The owner and operator of the power plant has been Markus Engelsberger since 1999. The power plant has been a listed building since 2009.
history
In 1906, Süddeutsche Wasserkraft GmbH - the company became part of Amperwerke AG on July 2, 1908 - applied for permission to build a hydroelectric power station on the Amper near Allershausen . Because of the resistance of the residents in Allershausen, the power plant was built on the northern boundary of Kranzberg. It was built from May 1906 to October 1910. The associated Amper Canal was built earlier. The construction of the power station cost exactly 2,498,774.94 Reichsmarks. In the power plant, a gradient of 6.70 meters was initially used so that the falling water could drive the two turbines and the generators. Around eleven million kilowatt hours of electricity could be generated per year.
This prestige object at the time - it was one of the five largest three-phase power plants in Bavaria - also attracted royal celebrities, including Prince Ludwig, who later became King Ludwig III , who was present at the inauguration on March 11, 1911.
Together with the Weng and Haag hydropower plants , the plant supplied the entire Ampertal with electricity, as well as the city of Freising and, with a branch line, also the former Schlüter tractor factory . It was not until the 1960s that the power plant lost its importance: The sharp increase in electricity consumption was covered by coal and nuclear power plants. The share of hydropower in Bavaria has fallen to 20 percent to date. The substation, a small technical and operational building, was even demolished in 1979. In the course of the liberalization of the electricity market, Amperwerke sold the power plant at the end of 1999. Markus Engelsberger, whose great-grandfather Matthias Engelsberger had set up the first power supply in Siegsdorf ( Traunstein district ) before 1890, bought it. As the operator of the power plant, he continued a family tradition. Everything now had to be overhauled and renovated. Not only the generators were overhauled, a completely new control room and new control technology had to be installed. This increased the plant's output by 30 percent. The inside of the power plant looks like a museum: light Jura limestone and pictures from days gone by decorate the walls.
Protected architectural monument
The Bavarian State Office for Monument Preservation placed the hydropower plant under protection as an industrial monument in 2009. It is recorded in the Kranzberg monument list with the file number D-1-78-137-35 and described as follows:
As Plant II of the Amperwerke (later Isar-Amper-Werke AG) built 1906–1910 according to plans by the architect Rudolf Menckhoff, Berlin.
- Operations building with control room and works apartment, three-storey hipped roof building with two-storey flat-roof porch,
- Transversely connected machine house above the works canal, illuminated through high rectangular windows, hall construction in reinforced concrete construction with mezzanine and hipped roof; with equipment.
power
Today a gradient of 8.70 meters is used. The 20 million kilowatt hours of electricity generated correspond to the consumption of around 5,000 households and cover around 2% of the electricity requirements of the Freising district. In full operation, around 40 cubic meters of water per second flow through the turbines. Three employees ensure that the machines run smoothly with an output of around 2400 kilowatts. A sign next to the front door reads: "8,000 tons of hard coal, 10,000 tons of brown coal and 5,000 tons of heavy heating oil could be saved, and 20,000 tons less carbon dioxide were released into the atmosphere", since the hydropower plant went into operation 100 years ago.
literature
- Toni Schmidberger: The first AC power plant in Germany . Bad Reichenhall 1984.
Web links
Individual evidence
swell
- Electricity consumption in the Freising district [1]