Installation of underground power cables in nine phases: programme and overview

Elia is laying new 150-kV underground cables in Geel, Olen and Herentals. 

Work on the Heze high-voltage substation in Geel started in early March 2021 and, as the project progress, the worksite will gradually move towards the high-voltage station in Herentals. In order to keep disruption to a minimum, the project will be carried out in nine phases and will run until mid-March 2022.

Why is the project needed? 

Elia is planning to lay new 150-kV underground cables in Herentals, Olen and Geel to enable an expansion and restructuring of the power grid. This is necessary to prepare the grid for rising energy demand in the area. The project will allow Elia to continue guaranteeing a reliable electricity supply in the region in the future. 

Laying an underground cable in nine phases 

Work on the Heze high-voltage substation in Geel started in early March 2021. The worksite is shifting towards the high-voltage station in Herentals. In order to keep disruption to a minimum, the project will be carried out in nine phases and will run until mid-March 2022


Several weeks prior to the start of work in a given worksite zone (phase) local residents will receive a letter with more information about the specific type of disruption and possible diversions during that phase of the project.

Minimising disruption 

Elia and its contractor are making every effort to minimise disruption. 

  • Work will only be carried out during the day, between 7 a.m. and 7 p.m.
  • Site vehicle traffic in the street will be limited. 
  • All homes, businesses and agricultural areas will remain accessible at all times.    
  • Owners will be personally informed of any exceptions to these arrangements.
  • There will be no power outages during the works. 
This website uses cookies to provide you with an optimal browsing experience. Some cookies are strictly necessary for the operation of this website and cannot be rejected, while others are used for analytical/functional/targeting purposes and can be rejected. For more information, please consult ourCookie Policy . You can manage/change your cookie preferences at any time. If you do not manage your preferences, only the cookies which are strictly necessary will be accepted.