Thuringian river bridge
 
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The Thuringian power bridge (also called 'Südwest-Kuppelleitung' or 'Höchstspannungsleitung Lauchstädt – Redwitz') is an approximately 189 kilometer long 380 kV three-phase high voltage overhead line between the substations Bad Lauchstädt (Saxony-Anhalt) and Redwitz (Bavaria). From Bad Lauchstädt to the border between Thuringia and Bavaria, it is operated by 50Hertz and from there to Redwitz ( 50 ° 9 ′ 45 ″ N , 11 ° 11 ′ 36 ″ E ) by Tennet . The entire project should cost around 300 million euros. The first circuit was put into operation at the end of 2015, and it was fully commissioned on September 14, 2017. The total transmission capacity is 5,000 MW.
function
The extra-high voltage line is used to transport electricity from north to south, from the eastern federal states with many wind turbines and a large capacity of lignite power plants to the south-western federal states, where numerous photovoltaic systems with a high total output are installed, as well as within Europe. It is considered to be important for the future viability of the electricity network and is intended to eliminate bottlenecks in electricity delivery.
As part of a road bundling among other parallel to the section Erfurt-Rödental the railway Nuremberg-Erfurt high-speed railway running line from the European Union classified as a "project of common interest '(PCI, English project of common interest ). The legal basis for the construction was the Energy Line Expansion Act (EnLAG) of 2009, in which the Thuringian electricity bridge is listed as project no.
The commissioning of the first circuit of the interconnector at the end of 2015 is considered to be the main reason for the halving of costs in the network area of 50Hertz Transmission in 2016 , which resulted from power grid bottlenecks. From 2015 to 2016, the costs for redispatch measures there fell from 207 to 105 million euros, and the costs of curtailment measures for renewable energies fell from 146 to 73 million euros.
construction
The first section between the Bad Lauchstädt substations ( 51 ° 24 ′ 24 ″ N , 11 ° 53 ′ 32 ″ E ) and Vieselbach ( 50 ° 59 ′ 51 ″ N , 11 ° 7 ′ 22 ″ E ) has been since December 18th In operation in 2008; the second section, from the Vieselbach substation to the Altenfeld substation ( 50 ° 34 ′ 26 ″ N , 10 ° 59 ′ 26 ″ E ) since July 2, 2015. The former replaces a section of the so-called Reichssammelschiene , a 220- kV line.
For the third section (between the Altenfeld substation and the Thuringian state border), the building permit had existed since January 21, 2015. On the same day, the government of Upper Franconia issued the planning approval decision for the Bavarian section. The commissioning of the first circuit in test operation took place on December 17, 2015. For this purpose, temporary overhead line masts were erected at Theuern . With the commissioning of the second circuit, around 21 months after the first, the official opening took place on September 14, 2017. Originally, the line with both circuits was supposed to be connected to the grid in spring 2016.
Between Vieselbach and Schalkau ( 50 ° 23 ′ 29 ″ N , 11 ° 1 ′ 46 ″ E ), the planning approval decisions also included the subsequent installation of a crossbeam on the masts for two additional circuits within the next ten years. According to the network development plan of 2014, the two circuits from Schalkau to Grafenrheinfeld ( 49 ° 58 ′ 53 ″ N , 10 ° 11 ′ 14 ″ E ) should be continued. In the network development plan 2030/2019 status, the alternatives P44 Altenfeld – Grafenrheinfeld and P44mod Altenfeld – Ludersheim via Schalkau are provided for the extension.
course
After starting at the Bad Lauchstädt near Halle substation , which is also connected to the neighboring Schkopau power plant , the first 75-kilometer section of the line runs in a south-westerly direction, roughly parallel to the new Erfurt – Leipzig / Halle line and a newly built line for this purpose. traction power line in operation since November 2013 .
As far as the A 71 , the second, approximately 57-kilometer-long line section runs parallel to the 380 kV line to Mecklar ( Hesse ), a section near Riechheim being a 4.1-kilometer hybrid line together with the Bebra - Weimar traction power line . South of Kirchheim the line turns south and runs parallel to the A 71, whereby here in the Wipfratal a 4.4 km long section also represents a hybrid line, this time with the new Eischleben - Wolfsberg traction power line . The parallel route with the motorway ends at Traßdorf . As far as Altenfeld, the line runs continuously parallel to the high-speed line Nuremberg – Erfurt . A 110 kV line will be taken from Stadtilm to Altenfeld over a length of 21.6 kilometers .
South of the old field is maintained with the parallel guide of the railway line until it along the A 73 rotates to southeast. In the course of the construction of the 57-kilometer section of the route, a 110-kV line was dismantled from Dörfles-Esbach , as it is taken along on the lower traverse. The end point of the third construction phase is the Redwitz substation, where lines to Würgau and Remptendorf and the Ostbayernring via Mechlenreuth and Etzenricht to Schwandorf connect in the high-voltage network .
See also
- Energy transition by country # Germany
- Photovoltaics in Germany # Installed capacity in the federal states
Web links
- Planning approval decision for the 380 kV line Vieselbach-Altenfeld including the 110 kV connection to the Stadtilm substation, Thuringian State Administration Office, January 31, 2012
- www.50hertz.com European priority project: The south-west coupling line ( Memento from February 27, 2015 in the Internet Archive )
- European Commission> ...> Energy infrastructure> Map viewer
Overviews on OpenStreetMap
- Lauchstädt – Vieselbach on OpenStreetMap
- Vieselbach – Altenfeld on OpenStreetMap
- Altenfeld – Redwitz on OpenStreetMap
Footnotes
- ↑ a b Milestone project of the energy transition is in operation - the southwest coupling line is completely “live”. (PDF) press release. 50Hertz, September 14, 2017, accessed September 15, 2017 .
- ^ Project of common interest: 3.13 - Altenfeld (DE) to Redwitz (DE). (PDF) In: ec.europa.eu. October 2017. Retrieved October 21, 2017 .
- ↑ 50Hertz halves redispatch costs. In: IWR.de , March 21, 2017. Retrieved March 21, 2017.
- ↑ Tennet completes part of the river bridge . In: Nordbayerischer Kurier , December 17, 2015. Retrieved December 17, 2015.
- ↑ Carsten Siedmann: Development status and prospects of the high voltage network in southwest Thuringia . 5th Regional Energy Conference Southwest Thuringia - November 9th, 2016
- ↑ 50hertz.com: Press release from November 16, 2015
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