How do I switch electricity or gas supplier in Luxembourg?

The short answer

Your supply does not stop when you switch: the cables, pipes and meter stay the same. Only the company that sends the bill changes.

📜 The rules in Luxembourg

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

The market

All customers can freely choose their electricity and natural gas product and supplier. There is no municipality with only one supplier, and switching never interrupts supply.

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

Cooling-off period

For contracts concluded at a distance, off-premises or after a sales phone call you can withdraw within 14 days of signing.

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

🪜 Step by step

Get your details readyTake your latest bill: meter point number, yearly use, and the end date and notice period of your contract.
Compare offersUse the price comparison below and look at the total yearly cost, not only the price per kWh. Check how long the price is fixed.
Sign with the new supplierIn most countries the new supplier arranges the switch, including notice to the old one. Keep the confirmation.
Check the final billRead your meter on the switch date and compare it with the old supplier’s final bill. Any credit must be paid back.

📇 Who to contact

Calculix officialCompare electricity and gas offersBefore you switch, or when your price goes up🔗 www.calculix.lu

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

Union Luxembourgeoise des Consommateurs (ULC)Independent advice for consumersFor advice, template letters and a second opinion🔗 www.ulc.lu

❓ Questions

Will I be without power when I switch?

No. The physical supply continues; only the contract changes.

Can my old supplier charge an exit fee?

That depends on your contract and on the rules in Luxembourg shown on this page. Fees usually only apply to fixed-term, fixed-price contracts.

Can I cancel a new contract?

Contracts made at the door, by phone or online usually have a cooling-off period. The rules for Luxembourg are on this page.

📎 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.

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🔄 How do I switch electricity or gas supplier in Luxembourg?