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Electricity & gas · Luxembourg
Checked 2026-09-27

📈 My energy supplier is raising prices in Luxembourg. What can I do?

The short answer

A supplier cannot raise your price overnight. It has to warn you in advance, and that notice often gives you the right to leave.

📜 The rules in Luxembourg

Price rises

Your supplier must tell you at least 30 days before any change to the energy price or contract terms. You can then cancel without notice and without charge before it applies. This does not cover taxes or regulated network tariffs.

Official source: myilr.lu · Checked 2026-09-27

Switching supplier

Sign with the new supplier; it cancels your old contract for you. Since 1 January 2026 a switch must be completed within 24 hours (before: 3 weeks). Switching is free, but leaving a fixed-term, fixed-price contract early can cost a fee if agreed in advance.

Official source: ilr.lu · Checked 2026-09-27

🪜 Step by step

  1. Read the letterNote the new price, the date it starts, and whether your contract has a fixed price until a certain date.
  2. Check if it is allowedA fixed price normally cannot be raised before its end date. Compare the notice you got with the rules for Luxembourg below.
  3. Compare and decideCheck whether another offer is cheaper. If you leave because of the increase, do it before the new price applies.
  4. Complain if the rules were brokenIf you were not informed properly, complain in writing to the supplier, then to the dispute body below.

📇 Who to contact

Calculix officialCompare electricity and gas offersBefore you switch, or when your price goes up🔗 www.calculix.lu
Service de médiation de l'ILRSettles disputes with energy companiesWhen the company has not solved your complaint📞 (+352) 28 228 444🔗 www.ilr.lu/mediation
Institut Luxembourgeois de Régulation (ILR)Supervises energy companies and explains your rightsFor information, and to report a company that breaks the rules📞 (+352) 28 228 228🔗 www.ilr.lu

❓ Questions

Can a fixed price be raised?

Normally not during the fixed period, unless your contract says so. Taxes and levies can still change.

Do I pay an exit fee if I leave after a price rise?

In many countries you can leave without a fee when the price goes up. The rules for Luxembourg are on this page.

What if I missed the letter?

Ask the supplier for a copy and the date it was sent. If they cannot show proper notice, complain.

📎 Sources

Checked: 2026-09-27

🧭 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

🔄Switching supplier→🧾Wrong or high bill→💸Can’t pay the bill→🏚️Supplier went bust→📣Complaint about a supplier→

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