Main power plants
| Main power plants | |||
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| location | |||
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| Coordinates | 50 ° 5 '47 " N , 8 ° 32' 39" E | ||
| country | Germany | ||
| Waters | Main | ||
| Data | |||
| Type | electricity | ||
| Primary energy | Hard coal | ||
| fuel | Hard coal | ||
| power | 9.4 MW electrical | ||
| owner | Elektrizitäts-AG formerly W. Lahmeyer & Co. , from 1923 RWE | ||
| operator | Main-Kraftwerke AG | ||
| Project start | 4th July 1910 | ||
| Start of operations | May 14, 1911 | ||
| Shutdown | 1999 | ||
The Main-Kraftwerke AG was a 1910 in Höchst am Main based power company . The subsidiary of Elektrizitäts-AG, formerly W. Lahmeyer & Co. , was taken over by RWE in 1923 together with the parent company . The power plant in Höchst, which went into operation in 1911, has been expanded and modernized several times. In 1999 the Höchst power station was shut down and demolished in 2004/2005. The administration building of Süwag Energie AG, which was created in 2001 from the merger of several RWE holding companies, including Main-Kraftwerke AG, is now located at the former power plant site .
Company history
On August 16, 1910, Elektrizitäts-AG formerly W. Lahmeyer & Co. (EAG) founded Main-Kraftwerke AG in the then district town of Höchst am Main to supply the city of Höchst and the surrounding Voraunus communities with electricity. The supply area also included the Taunusbahnen , electrified intercity trams operated by Frankfurter Lokalbahn AG (FLAG), in which EAG owned the majority. The direct current power plant in Bad Homburg, built in 1896, could no longer meet the increasing demand. In addition, EAG needed electricity for its production facilities operated jointly with Felten & Guilleaume AG in Höchst Strasse in Frankfurt's Gallusviertel .
At the end of 1911, the Main power plants were already delivering electricity to 30 communities between Höchst and the Taunus, with a total of 36,000 inhabitants. In 1923, RWE took over the majority of EAG and thus also of the Main power plants. In 1927, in the so-called electrical peace with PreußenElektra, RWE agreed a contractual delimitation of the supply areas. After that, the city of Frankfurt am Main belonged to the PreußenElektra area, while Höchst remained in the supply area of the Main power plants even after the incorporation in 1928. The supply areas of the network operators Amprion and Tennet TSO still meet in Frankfurt today . In 1929, the Höchst power plant was connected to the north-south line via a 110 kV connection to the Kelsterbach substation , the first 220 kV interconnected line for three-phase high-voltage transmission in Germany.
By 1929, the supply area of the Main power plants expanded to include most of the administrative district of Wiesbaden , a total of 366 communities with 283,000 inhabitants. In addition to the coal-fired power plant in Höchst, the Main power plants built or acquired a number of run- of -river power plants on the Lahn , including in Friedrichssegen and Limburg (1913), Cramberg (1927), Elisenhütte (1931) and Kalkofen (1955).
In 1999, the Main power plants shut down the no longer profitable Höchst power plant. In 2001, Main-Kraftwerke merged with five other RWE subsidiaries to form Süwag Energie AG.
Höchst power plant
Even before the company was founded, construction work began on the Höchst power plant on July 4, 1910, which was supposed to supply the town of Höchst and the Voraunus communities with electricity. The power station building on Großer Wingertsweg (today An der Schützenbleiche ) was built on the old factory site of the master paintworks, Lucius & Brüning , which had meanwhile relocated their main factory about a kilometer downstream. The power station building consisted of the boiler house on the banks of the Main, where the loading facility for the coal delivered by ship was also located, and the machine house built across the north front of the boiler house . The counter building with a three-axis corrugated gable in Art Nouveau and the adjoining eaves administration building to the north was located on the east side of the machine house, facing the city of Höchst .
The machine house received two synchronous generators of 2.2 MW each, which delivered three-phase alternating current at a generator voltage of 10 kV . The power plant went into operation on May 14, 1911. In 1913 it had to be expanded to include a further 5 MW generator. Further expansions of the boiler system and the power plant followed from 1915 to 1917 and 1922. In 1989 the power plant received a flue gas desulphurisation system . In 1999 it was shut down due to a lack of profitability, after it had only been in operation temporarily. Between 2004 and 2005, the old power station building and the two chimneys were demolished, and an administrative building for Süwag Energie AG was built in their place. The 110 kV substation in Höchst is still in operation and still serves as part of the power supply for the Höchst industrial park.
Former loading crane for coal burned in the power plant
Entrance portal at the substation of the former Main power plant
Line from the power station to the Kelsterbach substation from 1929
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Cultural monuments
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Various buildings and systems of the Main power plants are under monument protection . The power plant in Oberursel, Zimmermühlenweg 2 , was a former FLAG rectifier system built in 1910 with a transformer station for the Main power plants. In Limburg-Staffel , Diezer Straße 44 , there is a transformer station built in 1914.
literature
- Franz Lerner (Ed.): The active Frankfurt in the economic life of three centuries . Verlag Gerd Ammelburg, Frankfurt am Main 1955, pp. 486-488
- Volker Rödel: Civil engineering in Frankfurt am Main 1806–1914 . Societäts-Verlag, Frankfurt am Main 1983, ISBN 3-7973-0410-2 , p. 164
Web links
- Coal-fired power station Höchst
- Early documents and newspaper articles on the Main power plants in the 20th century press kit of the ZBW - Leibniz Information Center for Economics .
Individual evidence
- ↑ Power station / former substation
- ↑ State Office for the Preservation of Monuments Hesse (ed.): Umspannwerk der Mainkraftwerke In: DenkXweb, online edition of cultural monuments in Hesse