Quite a few people are considering getting in a current generator to make sure they have electrical power when the mains power is switched off. But these types of generators are quite expensive. Plus you cannot just use them as part of your home power network.
If the upcoming winter proves to be harsh, the electricity supply may be interrupted in rural areas for a certain length of time. The reason for doing so is to prevent a wide-scale imbalance of the power grid, which could produce a blackout.
To avoid a widespread power failure, there must be a balance between the electricity that 'enters' the grid (produced and imported) and the electricity that is consumed at all times.
Belgium uses up most electrical power between 5 pm and 8 pm on weekdays: offices and shops are still open for business, trains, trams and the underground system are operating at peak performance and people are getting dinner on at home. To avoid selective power cuts, there is only one thing for it: to drive down overall power consumption during these times.
You will be given 24 hours' notice of any power cut... Use this time to prepare, following the recommendations of Federal Crisis Centre.