Marbach power plant
| Marbach am Neckar power plant | |||
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| location | |||
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| Coordinates | 48 ° 55 '39 " N , 9 ° 13' 48" E | ||
| country | Germany | ||
| Waters | Neckar | ||
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| Type | Combined cycle power plant | ||
| Primary energy | oil | ||
| fuel | Extra light heating oil ( HEL ) | ||
| power | 413 MW | ||
| owner | EnBW | ||
| operator | EnBW | ||
| Start of operations | April 1, 1941 | ||
| Chimney height | 160 m | ||
The Marbach power plant is located just outside of Marbach am Neckar . Today it is organizationally assigned to the Heilbronn location . The operator is EnBW . The power plant has single-row cell coolers (see picture). The chimney has a mouth height of 160 meters, the boiler house is 82 meters high.
Unit I was a coal-fired power plant that was in operation from 1942 to 1981. Units II and III, which together have an electrical output of 413 MW and run on petroleum products, were shut down in March 2020. From July 2016 to March 2020, they were used as cold reserves , i.e. as safety reserves that only run when a particularly large amount of electricity is needed. A fourth block is planned.
The oldest power plant on the site is a 3 MW hydroelectric power plant that has been running since 1941 until today.
Block I.
The Marbach I block was a coal-fired power station built between 1938 and 1942, a busbar system (64 atmospheres , 500 ° C) with three turbo-generators and an output of 100 MW. Block I was planned and built by the Technical Works of the City of Stuttgart to supply Stuttgart . At the “recommendation” of the Gauleitung, the power plant, which had already been built in the shell, had to be handed over to the newly founded Energie -versorgung Schwaben on May 15, 1939 .
On February 17, 1942, the first boiler and a turbo set went into operation, and electricity delivery began on April 1. With the commissioning of the third turbine set on November 2, 1942, the first expansion stage was completed. The power plant was expanded in the 1950s.
Block I was closed in 1981. The preserved parts of the plant are under monument protection. The reliefs were created by the Stuttgart sculptor Wilhelm Julius Frick. The former boiler house is used for climbing activities.
Block II & III
Marbach II, a gas turbine plant , went into operation in 1970. The power turbines are powered by Rolls-Royce jet engines. Today this system only serves as a minute reserve and for generating peak loads . In 2008 the gross electrical output was 130 MW.
Marbach III, an oil-fired gas and steam system , went into operation in 1974. In the 1970s, however, this block advanced to become a peak load power plant and since then has taken on the function of the generation reserve. The steam section of the heating oil-fired power plant block was preserved in 1998, but was put back on the grid in 2005 due to reactivation measures. In 2008 the gross electrical output was 265 MW.
business
The older EnBW power plants in Marbach and Walheim were in operation again from the beginning of 2005 to the beginning of July 2016. Before they were put back into operation, EnBW invested a "double-digit million sum" in the power plants in Marbach and Walheim and in the Rheinhafen steam power plant in Karlsruhe in order to increase the electricity capacity of these three plants by a total of 380 megawatts. In order to be able to secure operations, 18 new employees were hired for the Marbach power plant.
On July 5, 2013, EnBW notified the Federal Network Agency and the responsible transmission system operator, TransnetBW, of its intention to remove blocks II and III on July 5, 2014 without any conservation measures, i.e. H. finally, shut down. To the public she gave as reasons the lack of profitability of the power plant. However, the review of the transmission system operator prescribed by the Energy Industry Act revealed that the power plant units concerned were systemically relevant. Without the conventional power plant, located south of the north-south line routes “Mittelrheintrasse” and “Remptendorf – Redwitz”, which were potentially overloaded by the shutdown of several nuclear power plants in 2011 and increasing wind energy feed-in , the (n – 1) condition for security of supply is not guaranteed. The designation of the power plant blocks as systemically relevant was approved by the Federal Network Agency in December 2013. This meant that the two blocks in Marbach had to be kept operational for another two years, until July 5, 2016.
EnBW wanted to finally take the blocks out of operation by March 31, 2020, the Federal Network Agency prohibited this and classified the blocks as systemically relevant by March 31, 2023. Only then can the blocks finally go offline.
Mains connection
The Marbach III steam turbine is connected to the grid at the 220 kV maximum voltage level in the power grid of the transmission system operator Transnet BW . The Marbach II and III gas turbines are connected to the grid at the 110 kV high-voltage level in the power grid of the distribution network operator Netze BW .
Planned plants
Fuel cell power plant (not implemented)
A previously planned 1 MW fuel cell demonstration power plant on the power plant site will not be built. The consortium partners Électricité de France (EDF), Gaz de France (GDF), TIWAG-Tiroler Wasserkraft AG, Siemens-Westinghouse (USA), Siemens AG (Germany) and EnBW in Pittsburgh (USA) agreed on this . The commissioning of this plant was originally planned for 2003. The goal of the American-European demonstration project was (with the construction of this first SOFC system Solid Oxide Fuel Cell German, solid oxide fuel cell ) to gain experience for the launch of this technology and these also evaluated. The fuel cell should be operated under pressure with a micro gas turbine . A very high electrical efficiency of almost 60 percent could thus have been achieved. Due to its importance for future energy supply, the project was financially supported by the American Department of Energy (DOE) and the European Union .
Marbach IV
In December 2018, EnBW announced that it would build a conventional power plant with a capacity of 300 MW at the Marbach location. The power plant should be fueled with oil or gas and be available after the shutdown of the Neckarwestheim 2 nuclear power plant in order to guarantee a safe power supply in an emergency.
Hydroelectric power plant
The run-of-river power plant with two Kaplan turbines has a total output of 3 MW. It was rebuilt by Neckar AG in the course of the Neckar Canalization in 1938. On April 1, 1941, it was put into operation and leased for 99 years to the Technical Works of the City of Stuttgart (TWS), which had assumed the construction costs. In 2014, the system was one of EnBW's 24 hydropower plants on the navigable Neckar.
The old TWS hydropower plant, which had been in operation since the end of 1899, was shut down on October 1, 1938 as part of the Neckar canalization. It was located a few kilometers away in the former mill district of Marbach. Instead of the power station canal, the Marbach bypass now runs there. Three of the old turbines were bought by Eugen Haag after the shutdown, removed and transported to Rotenburg an der Fulda . In the hydroelectric power station built there by Eugen Haag, which is still family-owned and operated by the granddaughter, one of the old turbines can still be viewed. The old power station building in Marbach still exists today. In 2008 the building was bought by a private individual who has lived in it ever since.
Railway connection
The Marbach power plant was previously connected to the railway network via the now disused connecting line to the Marbach power plant , which branched off from the Bottwartalbahn .
See also
Web links
Individual evidence
- ^ Federal Environment Agency: Power plants in Germany
- ↑ a b c EnBW Kraftwerke AG: The Heilbronn thermal power station and its decentralized locations in Walheim and Marbach Flyer (PDF), as of October 2010, p. 11.
- ↑ Marbach power station . Published by: Energieversorgung Schwaben AG, Stuttgart, 1992, p. 3
- ^ A b Karl Erich Haeberle: Stuttgart and electricity - history of the Stuttgart electricity and district heating supply . Ed .: Technical Works of the City of Stuttgart AG. Stuttgart 1983.
- ↑ a b Sack: Power plant location in the energy and technology park - status report . Schiller town of Marbach. March 7, 2008. Retrieved October 12, 2008.
- ↑ Albrecht Gühring: "... that one should seek to secure hydropower" - Stuttgart power plants in Marbach . Klett-Cotta, Stuttgart 1996, ISBN 3-608-91839-6 , pp. 143 .
- ↑ Hochwerk. In: bornack.de. Bornack GmbH & Co. KG, accessed on September 5, 2017.
- ↑ a b c power plants in Germany energie-chronik.de, as of March 31, 2008
- ↑ EnBW plans to decommission four conventional power plant units . EnBW press office, July 5, 2013
- ↑ Approval notification from the Federal Network Agency in accordance with Section 13a (2) EnWG for the system-relevant designation of power plant blocks in Marbach and Walheim: file number 608-12-003 . (PDF) Federal Network Agency for Electricity, Gas, Telecommunications, Post and Railways, December 19, 2013
- ↑ Power plants remain systemically relevant Heilbronn Voice, May 18, 2020
- ↑ a b Federal Network Agency power plant list (nationwide; all network and transformer levels) as of July 2nd, 2012. ( Microsoft Excel ; 1.6 MB) Archived from the original on July 22, 2012 ; Retrieved July 21, 2012 .
- ↑ Pre-commercial 1 MW fuel cell power plant in Marbach / Neckar will not be built bauunternehmen.com
- ↑ 1 MW fuel cell power plant in Marbach / Neckar is nothing energieportal24.de, December 20, 2002.
- ^ A new power plant just for emergencies Marbacher Zeitung, November 13, 2018
- ↑ Albrecht Gühring: "... that one should seek to secure hydropower" - Stuttgart power plants in Marbach . Klett-Cotta, Stuttgart 1996, ISBN 3-608-91839-6 , pp. 154 .
- ↑ The history of the power plant stuttgarter-zeitung.de, August 30, 2014.
- ↑ Our old Francis turbine: The museum piece kraftwerk-haag.de
- ↑ And every day he greets the hydroelectric power station stuttgarter-zeitung.de, August 30, 2014.