First section of new 50Hertz 380kV line in operation


The 37-kilometre line section between the Stendal West and Wolmirstedt substations in the German state of Saxony-Anhalt is the southernmost stretch of an overhead line construction project, which runs for a total of over 200 kilometres from Güstrow in Mecklenburg-Western Pomerania to Wolmirstedt. With this 380kV line construction, TSCNET shareholder 50Hertz, the transmission system operator (TSO) from north-east of Germany, is successively replacing a 220kV line dating from the 50s of the last century. On 12 May, 50Hertz commissioned the Stendal West-Wolmirstedt section, whose construction costs amounted to around €40m.

In May 2019, the TSO had started erecting the 87 Pylons of this first stretch of the new transmission line, which could be installed along the entire length of the section parallel to an existing 380kv line. This continuous line bundling follows the 50Hertz planning principle of using existing infrastructure wherever possible. After the conclusion of the approval procedures, construction, and commissioning of all six sections towards Güstrow, 50Hertz will completely dismantle the old 220kV line Güstrow-Wolmirstedt.

The main objective of the 50 Hertz construction project is to improve the transmission capacity for wind power. Dr. Frank Golletz, CTO of 50Hertz, comments on the progress of the extra-high voltage line: “The increase in transmission capacity is necessary to enable us to better manage the high volume of wind energy in the northern regions of our control area and to integrate it securely into our grid. With the commissioning of this first construction phase, we have come a step closer to this target.”

50Hertz has commissioned the new 380kV overhead line between Stendal West and Wolmirstedt (picture: City of Stendal, Germany)

> See 50Hertz press release, in German (html)