Siemens will be supplying HVDC technology to the SuedLink, a new HVDC transmission link that will help evacuation of wind and solar energy, in Germany
The 700-km SuedLink is a new wind power line, which will enable low-loss energy transport over long distances and the integration of wind power from the North and solar power from the South of Germany into the transmission grid.
The contract for the necessary converter technology for the section between the grid interconnection points of Brunsbüttel in Schleswig-Holstein and Leingarten/Großgartach in Baden-Württemberg was recently signed.
Siemens Energy will supply the converters and carry out the detailed and site-specific planning of the facilities in the coming months together with the project owners, the transmission grid operators TenneT and TransnetBW, and further project members.
A total of 7,500 km of transmission lines will have to be optimized, strengthened, or newly built in the German transmission network over the next few years, and HVDC transmission links are playing an important role, according to a Siemens release.
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Third HVDC corridor for Siemens in Germany
“After Ultranet and SuedOstLink, SuedLink is the third high-voltage direct current corridor project in Germany to be implemented with HVDC systems from Siemens Energy. We are pleased that our technology ensures that renewable electricity can be transported to where it is needed. In this way, we are making an important contribution to the energy transition,” said Beatrix Natter, Executive Vice President Transmission at Siemens Energy.
Siemens Energy is currently implementing ten HVDC projects worldwide and can already look back on more than 59 successfully completed projects.
SuedLink
SuedLink is one of the largest energy infrastructure projects in Europe. At the end points of the 700-km power link, converter stations are required that can convert direct current into alternating current and alternating current into direct current. The SuedLink converters will be designed as self-commutated voltage-sourced converters in a modular multilevel converter (MMC) arrangement with a rated DC voltage of ±525 kV. In addition to active power, the systems can also independently control reactive power. This allows them to respond flexibly to fluctuations in generation and consumption in the grid and enables the low-loss transport of up to two gigawatts of power in both directions. This output, which is equivalent to that of two nuclear power plants, can supply around five million households with electricity.
(Featured photograph (source: Siemens) shows inside view of a typical HVDC converter hall)
