09 August 2024

Update on storm damage in Mechelen: Power supply restored following the commissioning of a temporary backup line

  • In the wake of the storm on 9 July, Elia has built and integrated five backup pylons into the existing high voltage grid. 
  • The backup line will remain in service until the destroyed high-voltage line is fully back up and running.

System operator Elia today commissioned the backup line in Heffen. An emergency procedure was immediately launched in order to restore the power supply after the recent storm. The backup line comprising five temporary pylons was the result of consultation with the municipal authorities and a number of land owners and is likely to remain in service for a while. This will give Elia time to best plan and carry out the repairs on the original high-voltage line.

Prior to the storm on 9 July, Mechelen and the surrounding area were supplied with electricity by two 70-kilovolt (kV) high-voltage lines and two 150-kV high-voltage lines. However, extreme weather conditions brought down nine pylons on the 150-kV grid, leaving only the 70-kV grid. This made the local power supply more vulnerable, as there would no longer be a backup should an additional incident occur on one of the 70-kV lines.

New line built at lightning speed by specialist teams

A backup line was already being planned during the clearance works. Elia has specialist teams trained to quickly build such a line. Construction got under way on 24 July and all 45-m-tall pylons had been erected by the end of that month. Then the pulling of the electric wires (conductors) between the pylons began. Protective wooden frames were installed here to ensure that assembly could take place in complete safety. The backup line consists of four conductors: three electric wires and one earth wire (lightning rod). 

Following a range of tests, the 150-kV backup line was commissioned today. This means that from now on, Mechelen and the surrounding area will be supplied with electricity by two 70-kV lines and one 150-kV backup line.


Now that the construction of the backup line is complete, we are moving on to a new phase: the permanent restoration of the original connection. The first few months will be spent studying the foundations of the fallen pylons and launching the permit procedure, for instance, after which we will start consulting with all stakeholders. 

Thank you!
 
Now that the backup line is up and running, Elia would like to thank everyone who gave their all to deal with the crisis situation since the storm on 9 July: the emergency services, the municipal authorities and the crisis team led by Mayor Bart Somers, our colleagues from Fluvius and, of course, our employees and subcontractors in the field. Excellent communication, goodwill and smooth cooperation meant that the backup line was erected very quickly. Moreover, we could always count on the cooperation and understanding of the locals.

Anyone with questions about the future repairs can call the free hotline on 0800 11 089 or email omwonenden@elia.be


Lotte Van der Stockt
Lotte Van der Stockt
Projects in de provinces of West-Vlaanderen, Oost-Vlaanderen and Brussel
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