Practical guide

If they want, grid users can draw on Elia's expertise in metering. You can find out how here.

You can obtain more information about these services from the Key Account Manager or (technical questions).

Standard metering 

Standard metering relates to metering data which Elia supplies on its own initiative and free of charge to ARPs, access holders and energy suppliers and, on request, to grid users. All applicants receive the overall data for a single access point in the form of daily and monthly load curves. These data allow them to invoice for their services and check their invoices.


Additional metering

We refer to all metering other than standard metering as additional or commercial metering.

These services are paid for by applicants if they are provided for by the technical regulations applying to metering points or if under the technical regulations these services must be paid for by applicants.

In this case a contract is signed between the applicant and Elia.

Under the rules on confidentiality and non-discrimination laid down by the technical regulations, only a paying applicant has access to this information. It must not be passed to third parties in any form without the explicit written permission of Elia.

Here is a brief outline of the services on offer:

Daily provision of load curves per metering point

The load curves are based on quarter-hourly data. They can be grouped by grid access point before they are made available.

All the data are brought together in a monthly file. Each day, the monthly file is updated with non-validated quarter-hourly values from the previous day. As time goes on, these quarter-hourly values are validated and the validated values replace the initial non-validated quarter-hourly values.

For more details about this product, see product sheet M1 (PDF).

Monthly provision of load curves per metering point

The principle behind monthly load curves is the same as that behind daily load curves, apart from the fact that they are made up of validated quarter-hourly values and are published monthly.

For more details about this product, see product sheet M1 (PDF).

Provision of metering impulses

Metering impulses are electrical signals transmitted by the meters to the customer via a conductor or remote transmission system. Each signal is the equivalent of one unit of active or reactive energy. These impulses allow grid users to access their raw real-time consumption and generation data. Therefore they can react immediately if it turns out that they have to adjust their quarter-hourly injections or offtakes.

For more details about this product, see product sheet M2 (PDF).

Provision of real-time metering impulses and remote signals

Elia makes its remote measurements and/or signals available using transmission channels between its SCADA system and that of the customer via the Tase2 (ICCP) protocol.

This provides the customer with real-time remote measurements and/or signals which Elia's control centre uses to manage the transmission system.

Provision of near-real time metering data

Elia makes near-real time metering data available to inform customers of their level of consumption or generation at one or more points on the grid.

As in the case of the load curves, the data are published on the Elia website. However, there is one significant difference in that they are available just a few minutes after the end of the quarter-hour in question.

In this way, grid users or an ARP can immediately correct any imbalance.

If no real-time data are available, metering data will be used. The accuracy of this information is slightly less than that for the load curves.

Installation and management of meters

Grid users can ask Elia to install meters in their facilities to provide an appropriate response to some of their specific needs (internal invoicing, control of consumption, obtaining green certificates, etc.).

At grid users’ request, Elia can also assume responsibility for the management of these meters (monitoring the accuracy of the meter, and first to take action in the event of meter failure).

For more details about this product, see product sheet M3 (PDF).