← FFCheckElectricity & gasES
Electricity & gas · Spain
Checked 2026-09-27

📈 My energy supplier is raising prices in Spain. 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 Spain

Price rises

Your electricity supplier must warn you in writing, separately from the bill, at least one month before changing contract terms or prices, and tell you that you can leave at no cost. Fixed-price contracts cannot change the price during their term, except for regulated components.

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

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

🪜 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 Spain 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

Comparador de ofertas de energía (CNMC) officialCompare electricity and gas offersBefore you switch, or when your price goes up🔗 comparador.cnmc.gob.es
Juntas Arbitrales de Consumo / entidades de resolución alternativa acreditadasSettles disputes with energy companiesWhen the company has not solved your complaint🔗 justoparaeso.consumo.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

❓ 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 Spain 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→

More help in Spain

All other problems: who handles whatWho do I contact?100+ things that go wrong — money, housing, work, safety, health, papers, government — and the one desk in Spain that actually handles each: phone, site, and what to say when they pick up.Before it goes wrongCan I?What is allowed, what is not, which permit you need — with the official source.Recognise it firstIs dit veilig?Check a phone number, website or message against 47,000 scam dossiers.