Check whether you already have a digital meter via mijn.fluvius.be
Log in at mijn.fluvius.be with itsme or your eID — your customer profile shows, per connection (electricity and gas separately), the meter type. If "digital meter" shows up for your electricity connection, you can download your quarter-hourly usage file right away. If "analog meter" or "budget meter" shows up, that meter doesn't register quarter-hourly values and requesting a new one is the first step.
How to request a digital meter from Fluvius
Fluvius is the grid operator that installs the digital meter — you request it directly from them, not from your energy supplier. The request itself goes through Mijn Fluvius or by phone, and installation happens via a technician visit. Costs, wait times, and the exact procedure can change — always check mijn.fluvius.be or Fluvius customer service for the current situation; we deliberately don't calculate that ourselves here.
Solar panels and old reversing meters
Do you have solar panels and still an older, analog (reversing) meter? A digital meter then changes more than just quarter-hourly registration — see the dedicated page on this for what that concretely means for how your feed-in gets accounted for.