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Electricity & gas · Belgium
Checked 2026-09-30

⏱️ Fixed price or dynamic (hourly) electricity contract in Belgium: which is right for me?

The short answer

A fixed price stays the same for an agreed period. A dynamic price follows the wholesale market hour by hour, so it can be cheaper when you shift your use, and more expensive at peak times.

📜 The rules in Belgium

Fixed and dynamic contracts

Flanders: if you have a digital meter, you have the right to a dynamic (hourly-priced) electricity contract from every supplier with more than 200,000 supply points in Flanders, under the Flemish Energy Decree.

  • Flanders, draft decree (not yet law): the dynamic-contract duty would extend to suppliers with more than 50,000 supply points from 1 January 2027 and to all suppliers from 1 January 2029; large suppliers would have to offer a fixed-price contract of at least one year. (themis.vlaanderen.be)
  • CREG: in a fixed-term contract the price or indexation formula cannot change before the end date; in an open-ended contract it can change with notice. A dynamic contract follows spot-market prices at least per market interval. (creg.be)
Vlaamse Nutsregulator – V-test®Official Flemish comparison tool, also lists dynamic contracts.🔗 vtest.be
Official source: themis.vlaanderen.be · Checked 2026-09-30

🪜 Step by step

  1. Look at how you use energyA dynamic price suits people who can move use to cheap hours, for example with an electric car, a heat pump or a timer. It needs a smart meter.
  2. Check what is on offerSee below what the rules in Belgium say about fixed-price and dynamic contracts and who has to offer them.
  3. Read the risks and the termsBefore you sign, the supplier must explain the costs and risks of a dynamic contract. Check the notice period and any exit fee.
  4. Review after a few monthsCompare your bills with what a fixed price would have cost. You can switch again under your contract terms.

📇 Who to contact

Vlaamse Nutsregulator – V-test®Official Flemish comparison tool, also lists dynamic contracts.🔗 www.vtest.be
CREG Scan (national); regional: V-test® (Flanders), CompaCWaPE (Wallonia), BRUSIM (Brussels) officialCompare electricity and gas offersBefore you switch, or when your price goes up🔗 www.cregscan.be/nl
CREG – Commissie voor de Regulering van de Elektriciteit en het GasSupervises energy companies and explains your rightsFor information, and to report a company that breaks the rules🔗 www.creg.be/nl
Vlaamse Nutsregulator (VNR, voorheen VREG) (Flanders)Supervises energy companies and explains your rightsFor information, and to report a company that breaks the rules🔗 www.vlaamsenutsregulator.be
CWaPE – Commission wallonne pour l'Énergie (Wallonia)Supervises energy companies and explains your rightsFor information, and to report a company that breaks the rules🔗 www.cwape.be
BRUGEL (Brussels-Capital Region)Supervises energy companies and explains your rightsFor information, and to report a company that breaks the rules🔗 brugel.brussels

❓ Questions

Is a dynamic contract cheaper?

Only if you use a lot of power when prices are low. At peak times it can cost much more than a fixed price.

Do I need a smart meter?

Yes. Hourly prices need a meter that records your use per hour or per quarter hour.

Can a fixed price still go up?

Normally not during the fixed period, but taxes and network charges can change. The rules for Belgium are on this page.

📎 Sources

Checked: 2026-09-30

🧭 Is this still correct?

We check this information carefully, but phone numbers, websites and rules change — and sometimes we get something wrong. Spotted a mistake or a change? Let us know below.

🔗 Also useful

📈Price increase→🔄Switching supplier→📟Smart meter→🧾Wrong or high bill→💸Can’t pay the bill→

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