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Electricity & gas · Spain
Checked 2026-09-27

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

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 Spain

Switching supplier

The new supplier arranges the switch. Electricity: within 10 working days of signing (15 in complex cases), and no switching fee for normal household tariffs (2.0TD). Gas: free and within 3 weeks.

Official source: miteco.gob.es · Checked 2026-09-27

The market

Households can freely choose their electricity and gas supplier. Next to the free market there are regulated options: the PVPC for electricity (up to 10 kW) and the TUR for gas (up to 50,000 kWh a year). New retail rules (Real Decreto 88/2026) apply since February 2026.

Official source: miteco.gob.es · Checked 2026-09-27

Cooling-off period

For contracts signed at a distance (phone, online) or away from business premises you have 14 days to withdraw. If you withdraw from a gas switch, your previous supplier continues supplying you.

Official source: cnmc.es · Checked 2026-09-27

🪜 Step by step

  1. Get your details readyTake your latest bill: meter point number, yearly use, and the end date and notice period of your contract.
  2. 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.
  3. Sign with the new supplierIn most countries the new supplier arranges the switch, including notice to the old one. Keep the confirmation.
  4. 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

Comparador de ofertas de energía (CNMC) officialCompare electricity and gas offersBefore you switch, or when your price goes up🔗 comparador.cnmc.gob.es
CNMC - Comisión Nacional de los Mercados y la CompetenciaSupervises energy companies and explains your rightsFor information, and to report a company that breaks the rules🔗 www.cnmc.es
OCU - Organización de Consumidores y UsuariosIndependent advice for consumersFor advice, template letters and a second opinion🔗 www.ocu.org

❓ 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 Spain 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 Spain 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.

🔗 Also useful

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

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