Replacement of a three-phase 150-kV overhead power line between the Oisquercq (Tubize) and Buizingen (Halle) substations with 150-kV underground electricity cables.

Guaranteeing the national grid's reliability

As part of our efforts to guarantee our grid's reliability, we have to continually assess our facilities' performance. Now that the current overhead line is nearing the end of its life, we are redesigning this part of our grid so that we can continue ensuring the security of the region's power supply.

  • texteIn the interest of society

    Replacing the line between Oisquercq and Buizingen is necessary for two reasons:

    • The end of the current line's life
      The line currently connecting the Oisquercq and Buizingen substations dates back to 1959 and is reaching the end of its life.
    • Guaranteeing the electricity grid's security and reliability
      By replacing this line, we are guaranteeing a reliable and secure grid that can provide a continuous supply of electricity.
  • texteThe route

    The new 150-kV underground line, which will feature one three-phase transmission line, will have a total length of 14.7 km, of which 6 km will be in the Walloon Region and 8.7 km in Flanders.

  • environnementEnvironment

    As a socially responsible company, Elia is deeply committed to the environment. It contributes actively to the energy transition and is particularly concerned with preserving biodiversity. It also works closely with local authorities, residents and all the local stakeholders affected by its infrastructure projects as it expands and upgrades its grid.

    A note on the environmental impact assessment  was carried out by an independent consultancy.

    During the works phase, Elia also makes every effort to minimise the impact of its infrastructure projects on the local environment in which they are located.

  • Schedule
    • March-April 2020 : Submission of permit application
    • May 2020 : Public enquiry
    • 2021-2023 : Work on the underground line
    • 2024-2025 : Dismantling of the overhead line



24 October 2022

Submission of a permit application for the dismantling of the overhead line

For the purpose of the Oisquercq-Buizingen project, which aims at enhancing the reliability of Elia infrastructures in the region, a permit application was submitted by Elia in mid-October with the authorities of the Walloon Region relating to the dismantling of the overhead line between the substations of Oisquercq (Tubize) and Buizingen (Halle).


15 June 2022

Excavation work on Begonialaan 

On Monday 13 June, Elia is starting excavation work on Begonialaan for laying a high-voltage cablev between Buizingen en Oostkerk.

Contact us

If you are affected by a project and want to ask us something, please feel free to contact us.
Our team would be happy to help.

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.