Putting the electricity and gas in your name
Two different companies are involved in every Belgian energy bill: the supplier you choose and contract with, and the distribution grid operator you cannot choose, which owns the cable and the meter. Moving in means recording the meter readings, identifying each meter by its EAN code and signing an energy transfer document with the outgoing occupant, then taking a supply contract in your own name.
Steps
Find the meters and the EAN codes
Each connection has its own EAN code, an eighteen-digit number beginning with 54 that identifies the meter point rather than the customer. It appears on the meter, in the energy transfer document and on any previous bill for the address.
Read the meters on the day of handover
Note every register: day, night and exclusive night for electricity where they exist, and the gas index. Photograph them with the serial number visible. Digital meters display several readings in sequence, so scroll through all of them.
Complete the energy transfer document
This standard form records the readings, the EAN codes and the identities of the outgoing and incoming occupants, signed by both. It is what separates the previous occupant's consumption from yours, and both parties keep a copy.
Take a contract in your own name
Choose a supplier and a contract type, then supply the EAN codes and the handover readings. Doing nothing does not leave you unsupplied, but it leaves you under a default arrangement that is rarely the cheapest option available.
Check the advance payments against reality
Belgian suppliers bill monthly advances estimated from a consumption profile, then settle the difference in an annual settlement invoice. If the estimate is too low for your household, the settlement lands as a single large bill.
Supplier and grid operator are not the same company
Your supplier sells you energy and issues your bill. Your distribution grid operator owns the local network, installs and reads the meter, handles connection faults and levies distribution tariffs that appear on that same bill. You choose the first freely; the second is determined by your address alone.
In Flanders the distribution operator is Fluvius. In Wallonia several operators share the territory, and Brussels is served by a single one. Their tariffs are approved by the regulators and are a significant part of what you pay, which is why the same supplier contract does not cost the same in every commune.
The practical consequence: a fault in your supply is a grid operator matter, while a billing dispute is a supplier matter. Calling the wrong one wastes a morning. Your bill identifies both.
Fixed, variable, and the one-month exit
Belgian household energy contracts come in fixed-price and variable-price forms. A fixed price holds the energy component for the duration of the contract; a variable price follows an indexation formula published in the contract conditions, which means the bill moves without you signing anything.
What makes the Belgian market unusually forgiving is the exit rule: a residential customer can end an energy supply contract at any time with one month's notice and without penalty, whatever the contract's stated duration. In practice the new supplier handles the termination when you switch.
That rule changes the calculation. A contract you regret is a month away from being replaced, so the risk of choosing is low. What deserves attention instead is the indexation formula on a variable contract and the tariff you fall back to when a fixed contract reaches its term, since silence usually means renewal on the supplier's current conditions.
Water, waste and the things that are not switchable
Electricity and gas are open to competition. Water is not: a single operator serves each area, billed separately, and there is nothing to compare. When you move in, the water meter reading has to be transmitted too, and it is easy to forget because it is not part of the energy transfer document.
Waste collection is organised at communal or intercommunal level, with rules and pricing that genuinely differ between neighbouring municipalities: prescribed bags, container systems, container access cards, and sorting rules that are not identical across regions. Find out how your commune does it during your first week, because the wrong bag is simply not collected.
If your home has solar panels or a heat pump, the regional rules on metering and network tariffs matter a great deal and differ by region. Check with the regulator for your region rather than assuming that what applies in one part of Belgium applies in yours.
Frequently asked questions
What is an EAN code and where do I find it?
It is the unique identifier of a connection point, an eighteen-digit number starting with 54, distinct for electricity and gas. It identifies the meter, not the customer, so it stays with the property when occupants change. Look on the meter itself, on the energy transfer document or on a previous bill for the address.
What happens if I move in without signing anything?
You will still have power, but not on terms you chose. The grid operator can attribute the connection to you under a default arrangement, and the price is typically higher than a contract you would have selected. It also makes the boundary with the previous occupant's consumption harder to establish.
Can I switch supplier soon after arriving?
Yes. Residential energy contracts in Belgium can be ended at any time with one month's notice and no penalty, regardless of stated duration. The incoming supplier normally handles the termination and the technical switch, and the meter is not physically touched, so there is no interruption of supply.
Why is my first annual bill so much larger than my monthly payments?
Because the monthly amounts are advances based on an estimated consumption profile, not on what you actually used. The annual settlement invoice reconciles the two. If the estimate was set for a smaller household than yours, the difference arrives in one instalment, and you can ask the supplier to raise the advances to avoid a repeat.