How to Switch Electricity Supplier in Spain: The Expat's Guide

Switching electricity suppliers in Spain is free, takes around 21 days, and you never lose power. Here is exactly how portability works under CNMC rules, plus how to avoid the bait-and-switch tactics that catch out so many expats.

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Why Your Electricity Bill in Spain Is Higher Than It Needs to Be

If you have just moved to Spain, the chances are very high that you inherited your electricity contract from the previous tenant, the landlord, or a doorstep salesperson who knocked at the right (wrong) moment. That contract is almost certainly not the cheapest one available to you, and in many cases, it is a free-market tariff with a fixed promotional rate that has already expired.

The good news: Spain has one of the most consumer-friendly switching regimes in Europe. Under rules enforced by the Comisión Nacional de los Mercados y la Competencia (CNMC), you have full portability of your supply point (CUPS). There are no fees to switch, no power cut, and no permission needed from your current supplier.

This guide walks you through the regulated PVPC tariff versus the free market, the 21-day switching window, the contract traps to watch for, and how to make sure your new home in Spain is not just well-lit but well-insured too.

21 daysMaximum legal switching window under CNMC rules
€0Cost to switch supplier – fees are illegal
>300Licensed electricity suppliers in the Spanish free market
30-40%Typical annual saving from switching to the right tariff

What's Covered in This Guide

From the regulated PVPC tariff to the dirty tricks of doorstep sellers, here is everything you need to switch electricity suppliers in Spain with confidence.

Portability & CNMC Rules

Your right to switch supplier freely under Spanish law, with no fees, no permission, and no power interruption.

The 21-Day Switching Window

How long the process actually takes, what happens behind the scenes, and when your first bill from the new supplier arrives.

PVPC vs Free Market

The difference between the regulated tariff (PVPC) and the free market – and which one suits expats best.

The Big Suppliers

How Iberdrola, Endesa, Naturgy, Repsol and TotalEnergies compare on price and service.

Bait-and-Switch Tactics

Doorstep, phone, and WhatsApp sales scripts to watch for – and how to reject them politely but firmly.

Bono Social Discount

How to check whether you qualify for the Bono Social – a state-backed discount of 25-65% on your electricity bill.

8 Practical Tips to Switch Supplier (and Actually Save Money)

Switching takes about ten minutes if you have the right documents to hand. Here is how to do it properly.

  • Find your CUPS code first. The CUPS (Código Unificado de Punto de Suministro) is a 20-22 character code on every bill, usually starting with "ES". It identifies your meter and is all a new supplier needs to start the switch.
  • Check your contracted power (potencia contratada). Measured in kW, this is one of the two main charges on your bill. Most flats need 3.45-5.75 kW. Reducing it (where possible) cuts your fixed cost immediately.
  • Decide between PVPC and free market. PVPC follows the wholesale hourly price – great if you can shift consumption to off-peak hours. Free market offers fixed rates and bundles, useful if you want bill predictability.
  • Compare on the CNMC comparator. The CNMC runs an official comparador de ofertas that shows real tariffs side by side, without sales spin.
  • Read the small print on "promotional" discounts. Many free-market offers advertise 30% off the energy term – but only for the first 12 months, and only on consumption (not the fixed power term).
  • Ask for the contract in writing before you sign. Spanish suppliers are legally required to provide it. If a phone agent refuses, walk away.
  • Apply for the Bono Social if you qualify. Pensioners, large families and low-income households can get 25-65% off via bonosocial.gob.es. You must be on the regulated PVPC tariff to qualify.
  • Track the switch via your meter app. Once your CUPS migrates (typically days 15-21), you can verify the change in your distributor's portal – separate from your supplier.

6 Mistakes Expats Make When Switching Electricity Supplier

These are the errors we hear about most often from clients arriving from the UK, Ireland, the US and Australia. Avoid them and you will save real money.

  • Signing on the doorstep. Anyone claiming to be from "your electricity company" needing to "update your contract" is almost always a third-party sales agent on commission. Never sign at the door.
  • Confusing supplier with distributor. Your distributor (e.g. i-DE, e-Distribución, UFD) owns the cables and cannot be changed. Your supplier (the one who bills you) can be changed any time.
  • Believing "you have to switch or you'll be cut off". This is a classic bait-and-switch line. Suppliers cannot disconnect a paying customer for refusing to change tariff. Report this to CNMC.
  • Forgetting to cancel the old direct debit. Once the switch completes, double-check that your old supplier has stopped charging. Occasionally a final bill arrives weeks later – query anything that looks duplicated.
  • Ignoring the energy efficiency labels. The IDAE (Instituto para la Diversificación y Ahorro de la Energía) publishes free guides on appliance efficiency – a key part of cutting bills regardless of supplier.
  • Locking into a 12-month penalty clause. Free-market contracts can include "permanencia" (minimum stay) clauses with cancellation fees. Always ask: "¿Hay permanencia?" before signing.

Why Expats Trust 247 Expat Insurance With Their Home in Spain

Switching electricity is one step. Protecting the home it powers is another. Here is why thousands of expats across Spain choose us for their home insurance.

DGSFP-Registered

We are a fully registered Spanish insurance brokerage under the DGSFP – the same regulator that oversees every legal insurer in Spain.

English Throughout

Every conversation, every policy document and every claim is handled in clear English by a real human, not a chatbot.

7 Days a Week

Weekend power outage, water leak or break-in? Our team is reachable seven days a week, including bank holidays.

Multiple Insurers

We compare quotes from the top Spanish and international insurers so you get the right policy – not just the only one we sell.

Expat-Specific Knowledge

From NIE to padrón to mortgage requirements, we understand the paperwork that trips up newcomers.

Claims Advocacy

If you ever need to claim, we deal with the insurer in Spanish on your behalf – one of the biggest reasons clients stay with us for years.

Frequently Asked Questions

The most common questions our clients ask us about switching electricity in Spain.

How long does it take to switch electricity supplier in Spain?
Under CNMC rules, the switching process is completed within a maximum of 21 days from the date you sign the new contract. In practice, most switches finalise around days 15-21, coinciding with your next meter reading. You will not lose power at any point – the change is purely administrative.
Are there any fees to switch electricity supplier?
No. Charging a fee to switch supplier is illegal in Spain. Your current supplier cannot block the change, demand a cancellation fee for switching itself, or impose any administrative cost. The only exception is if you signed a free-market contract with a "permanencia" clause – in which case early cancellation may carry a penalty (typically 5% of the remaining contract value).
What's the difference between PVPC and the free market?
The PVPC (Precio Voluntario al Pequeño Consumidor) is the regulated tariff, with hourly prices set daily based on the wholesale market. It is offered only by eight official Comercializadoras de Referencia (Iberdrola, Endesa, Naturgy, EDP, TotalEnergies, Repsol, CHC and Energía Ceuta XXI). The free market includes hundreds of suppliers offering fixed rates, time-of-use bundles and green energy packages. PVPC is required to qualify for the Bono Social.
Can I switch back to the regulated PVPC tariff later?
Yes. You can move from the free market back to PVPC any time, with no penalty (beyond any permanencia clause). You will need to contract with one of the eight Comercializadoras de Referencia – it is the same physical electricity, just a different billing tariff.
How do I report a bait-and-switch sales tactic?
If a supplier or their agent misled you into signing a contract – for example claiming to be from your existing supplier when they weren't – you have 14 days to cancel without cost (derecho de desistimiento). You can also report the supplier to the CNMC and your regional consumer office (Oficina Municipal de Información al Consumidor).
Does switching electricity affect my home insurance?
No. Your home insurance is entirely independent of your electricity supplier. However, electrical fires and power-surge damage are common claims, so make sure your contents and buildings cover includes appliance damage from surges – this is something we always check when quoting our expat clients.

Insurance Cover That Matches Your New Spanish Life

Sorting out utilities is just the start. Make sure your health, home and travel cover is right for life in Spain too.

Health Insurance in Spain

Health Insurance

Private health cover that meets visa requirements and unlocks faster access to English-speaking specialists.

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Home Insurance in Spain

Home Insurance

Buildings and contents cover including electrical surges, water damage and third-party liability – in plain English.

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Travel Insurance in Spain

Travel Insurance

Single-trip and annual travel cover for trips home and around Europe, with full medical and cancellation protection.

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Related Guides for Expats in Spain

More step-by-step guides to help you settle in and run your household with confidence.

How to Pay Your Electricity Bill in Spain

Reading your factura eléctrica, understanding the energy & power terms, and avoiding late-payment surcharges.

How to Pay Your Water Bill in Spain

Domiciliación, regional providers and what happens if you miss a quarterly bill.

Getting Home Internet Connected in Spain

Fibre vs ADSL, the major operators, and how to avoid 24-month lock-in contracts.

Setting Up Direct Debits (Domiciliación) in Spain

How to set up, change and cancel direct debits the right way at any Spanish bank.

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