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On a day/night meter? Use the new off-peak hours, including 11:00 to 17:00

Since 1 January 2026 the Walloon bi-hourly tariff has off-peak hours from 22:00 to 07:00 and from 11:00 to 17:00, every day of the week. Weekends are no longer fully off-peak, so move flexible use into those windows.

Wallonia · Subject to change

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ElectricityLevel 1 · HabitCost: FreeA few minutes

If your electricity contract has a day and a night rate (bi-hourly, or bihoraire), the hours changed on 1 January 2026. Off-peak hours now run from 22:00 to 07:00 and also from 11:00 to 17:00. Peak hours are 07:00 to 11:00 and 17:00 to 22:00. The same schedule applies on every day of the week, so Saturday and Sunday are no longer off-peak all day long.

CWaPE, the Walloon energy regulator, describes the midday window as a time when the grid has plenty of electricity. Its campaign suggests doing the laundry between 11:00 and 17:00 and starting the dishwasher after 22:00. It gives electric cars and electric water heaters as examples of large loads that can be shifted, so if you have one, set it to run in the off-peak windows rather than in the evening peak.

You don't need to do anything to your meter. Old meters with a dial were switched to the new hours at the end of 2025, and smart meters are adjusted remotely. If you had the communication of your smart meter switched off, your grid operator contacts you to change it.

Details

ImpactIndirect · This saves no energy by itself: it is a rule, a service, a contract, or a health or safety item. How we rate impact
Estimated savingShifting use lowers the price you pay per kWh on a bi-hourly meter but does not reduce the energy you use; the sources give no figure. (confidence: low)
Who actsYou (tenant)
Needs landlord's agreementNo
TypeAction

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Sources

  1. Communiqué de presse : Changements en 2026 au niveau des tarifs de distribution pour l'ensemble des utilisateurs du réseau électrique basse tension wallon (in French) · CWaPE (official source) · checked on
    Backs: from 1 January 2026 the bi-hourly off-peak hours are 22:00 to 07:00 plus a new window from 11:00 to 17:00, peak hours 07:00 to 11:00 and 17:00 to 22:00; the schedule applies 7 days a week, so weekends are no longer fully off-peak
    Where: article body (4 November 2025)
  2. Dossier de presse - Nouveaux tarifs pour le réseau de distribution basse tension en Région wallonne en 2026 (in French) · CWaPE (official source) · checked on
    Backs: same schedule every day; 11:00 to 17:00 is a time of abundant electricity on the grid; electromechanical meters were switched on 31 December 2025 and smart meters with active communication are adapted remotely, while customers whose communication was switched off are contacted by their grid operator; CWaPE's campaign suggests doing the laundry between 11:00 and 17:00 and running the dishwasher after 22:00; electric cars and electric water heaters named as large loads that can be shifted
    Where: p. 2 (bihoraire) and section 4 FAQ, pp. 5-7

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