Process

Process

Before anything else happens, a request for a connection or for an alteration to an existing connection must be submitted. Based on the information provided by the requesting party, Elia will examine the request as follows.

Preliminary study (optional)

Before commissioning an in-depth study, the requesting party may ask for a preliminary study to be carried out. This study provides information about the technical options that are available for making a connection, along with an estimate of the cost.

  • Procedure: the requesting party sends the completed Connection Request Form (only compatible with Adobe) (in French) to Elia by email, having selected "Preliminary Study” as the type of study, and provides Elia with a list of technical specifications necessary to implement the study. Elia may request any additional information it needs to complete the preliminary study.
  • Cost: the cost of a preliminary study is determined on the basis of the rates applying at the time.

The studies conducted by Elia as part of the connection process are subject to the general terms and conditions, which are applied in a non-discriminatory way.

In-depth study

An in-depth study sets out the technical solutions and the costs associated with them. If the requesting party and Elia reach an agreement about the technical solutions, Elia will draw up a draft connection contract or a draft contract for the proposed alterations.

  • Procedure: the requestering party sends the completed Connection Request Form (only compatible with Adobe) (in French) to Elia by email, having selected "In-depth Study” as the type of study, and provides Elia with a list of technical specifications necessary to implement the study. At any time Elia may request any additional information that will enable it to complete the in-depth study.
  • Cost: the cost of an in-depth study is determined on the basis of the rates applying at the time. 

The studies conducted by Elia as part of the connection process are subject to the general terms and conditions, which are applied in a non-discriminatory way.

Power quality

Power quality studies

In accordance with the provisions of the grid codes, Elia ensures that the voltage at the connection point meets the requirements of standard EN 50160.

You will find more information on the subject on Power Quality.

  • Procedure: Elia’s prior agreement is required for the connection of new disruptive or compensation facilities and for any modifications to facilities that may affect power quality. Depending on the type of equipment concerned and its nominal capacity, Elia will decide whether a power quality study needs to be carried out.
  • Cost: power quality studies are subject to the rates that apply to such studies at the time.

Power quality acceptance tests

  • Procedure: when new disruptive facilities are commissioned or modified, Elia may carry out acceptance tests to check the amount of disruption they cause. After the tests, Elia will provide the grid user with a report containing the key measurements that were recorded and the conclusions of the tests.
  • Cost: acceptance tests are subject to the rates that apply to such tests at the time.

Monitoring power quality at connection points

  • Procedure: Elia or the customer may arrange for monitoring the power quality at the connection points of disruptive facilities and compensation equipment that may involve a risk for the quality of the power. This is known as ‘power quality monitoring’.
  • Cost: power quality monitoring is subject to the rates that apply to such monitoring at the time.

Special power quality and EMC (electromagnetic compatibility) services performed on request

  • power quality monitoring at the customer’s connection point or facilities;
  • studies to optimise compensation, taking account of the price rates applying at the time and power quality;
  • targeted advice regarding various power quality or EMC problems, and identifying problems and finding the solutions best suited to the customer in question;
  • advice on the immunisation of sensitive processes and facilities, with a view to protecting critical facilities from the effects of voltage dips and interruptions.