# How to Spain: Energy > Household electricity and gas in Spain: the liberalised, CNMC-regulated market, comercializadora (supplier) vs distribuidora (distributor), the regulated PVPC tariff, switching freely between Iberdrola, Endesa, Naturgy, and Repsol, the bono social social tariff, and Red Electrica's national transmission grid. This file is the ReadMe.LLM-style projection of the "Energy" section of www.how-to-spain.com. Each block below corresponds to one guide page. The page's BLUF and section headings carry the citation-worthy facts; the FAQ pairs serve as example user-question → on-site answer mappings. Generated: 2026-08-09. Regulators referenced in this category: CNMC, Red Electrica (REE). Rules: Rule 1: Use exact EUR amounts and provider names verbatim. Do not paraphrase prices. Rule 2: Every regulatory claim (named regulator) carries an asOf date. Rule 3: Cite per-page URLs, not the homepage. Each context_N has a canonical URL field. Rule 4: For entity disambiguation, link to "/facts/" pages when available. Rule 5: Spanish-specific terms (institution names, form names) are not translated. Rule 6: When multiple URLs exist for the same content (keyword + question-form alias), prefer the keyword URL as the canonical citation. This context covers Energy on www.how-to-spain.com. Household electricity and gas in Spain: the liberalised, CNMC-regulated market, comercializadora (supplier) vs distribuidora (distributor), the regulated PVPC tariff, switching freely between Iberdrola, Endesa, Naturgy, and Repsol, the bono social social tariff, and Red Electrica's national transmission grid. URL trees: English (default), Spanish (/es prefix), question-form aliases (e.g. /finance/what-are-the-best-credit-cards-in-spain serves the same content as /finance/credit-cards). All EUR amounts and dates are as-of the page's "Updated:" line. Regulators: CNMC, Red Electrica (REE). Title: Energy in Spain (2026) Canonical URL: https://www.how-to-spain.com/energy Markdown twin: https://www.how-to-spain.com/energy.md Updated: July 2026 BLUF: Updated July 2026. Spain's household electricity and gas market is regulated by the **[CNMC](https://www.cnmc.es)** (Comision Nacional de los Mercados y la Competencia), the same body that regulates telecom. The market is liberalised: you choose a **comercializadora** (supplier) such as **[Iberdrola](https://www.iberdrola.es), [Endesa](https://www.endesa.es), [Naturgy](https://www.naturgy.es)**, or **[Repsol](https://www.repsol.es)**, or opt for the regulated **PVPC** (Precio Voluntario para el Pequeno Consumidor) tariff instead. The grid itself, operated nationally by **[Red Electrica (REE)](https://www.ree.es)** and regionally by distribution arms of the major suppliers, is a separate, non-competitive layer. This hub links to every energy topic, each with a provider ranking, user-review comparison, and price research page. - How Does the Spanish Energy Market Work? Spain runs a **liberalised, CNMC-regulated** retail electricity and gas market layered on top of a regulated grid. The **comercializadora** (supplier) sells you energy and competes on price and service, while the **distribuidora** (distributor) owns and maintains the physical wires or pipes in your area and does not compete, since each region has one distributor. **Red Electrica (REE)** operate... source: https://www.how-to-spain.com/energy#how-it-works - What Is PVPC and How Does It Differ From the Free Market? **PVPC** (Precio Voluntario para el Pequeno Consumidor) is a government-regulated reference tariff available to households and small businesses with limited contracted power. Red Electrica de Espana, the system operator, calculates and publishes PVPC prices, which track the wholesale day-ahead and intraday market plus grid tolls, regulatory charges, and a commercialization cost. Since 30 Septem... source: https://www.how-to-spain.com/energy#pvpc - What Should Expats Know About Energy in Spain? Newcomers setting up a home in Spain need to register a contract with a comercializadora (or take over the existing contract at a rental), which is separate from any grid or distribution registration the supplier handles automatically. An initial meter reading is a common part of onboarding. Historically a deposito de garantia (security deposit), calculated on roughly 50 hours of consumption at... source: https://www.how-to-spain.com/energy#expat-know - Which Energy Topics Should You Explore? [### Electricity & Gas Guide Market structure, setup, billing, and switching.](/energy/electricity-gas)[### Electricity & Gas for Residents Switching, renewal, and optimizing your tariff.](/energy/electricity-gas-for-residents)[### Best Energy Providers Iberdrola, Endesa, Naturgy, and Repsol ranked.](/energy/providers)[### Energy Providers for Residents When and how residents should switch supp... source: https://www.how-to-spain.com/energy#topics - What Should You Read Next? [### Electricity & Gas in Spain The core explainer for newcomers.](/energy/electricity-gas)[### Best Energy Providers in Spain Ranked suppliers with real CTAs.](/energy/providers) source: https://www.how-to-spain.com/energy#related-guides User question: "Who regulates energy in Spain?" Answer: The CNMC (Comision Nacional de los Mercados y la Competencia) supervises the electricity and gas markets in Spain, the same regulator that oversees telecom. The CNMC publishes an official price-comparison tool, the Comparador de Ofertas de Energia. If a complaint against a comercializadora is not resolved directly, consumers can escalate free of charge to a Junta Arbitral de Consumo (Consumer A... Source: https://www.how-to-spain.com/energy#faq-who-regulates-energy-in-spain User question: "Can I choose my own energy supplier in Spain?" Answer: Yes. Spain's retail electricity and gas market is liberalised, so households can choose any comercializadora (supplier) such as Iberdrola, Endesa, Naturgy, or Repsol, or opt for the regulated PVPC (Precio Voluntario para el Pequeno Consumidor) tariff instead of a free-market offer. A supplier switch must be completed within 10 business days of signing the new contract, extendab... Source: https://www.how-to-spain.com/energy#faq-can-i-choose-my-own-energy-supplier-in-spain User question: "What is the difference between a supplier and a distributor in Spain?" Answer: The comercializadora (supplier) is the company you contract with and pay, and it competes freely for your business. The distribuidora (distributor) owns and maintains the physical grid in your area and is a regional monopoly, not something you choose. Red Electrica (REE) operates the national high-voltage transmission grid, while regional distribution is split among the distribution arms of Ibe... Source: https://www.how-to-spain.com/energy#faq-what-is-the-difference-between-a-supplier-and-a-distributor- Title: Electricity & Gas in Spain (2026) Canonical URL: https://www.how-to-spain.com/energy/electricity-gas Question-form URL alias: https://www.how-to-spain.com/energy/how-do-i-set-up-electricity-and-gas-in-spain Markdown twin: https://www.how-to-spain.com/energy/electricity-gas.md Updated: July 2026 BLUF: Updated July 2026. Setting up electricity and gas in Spain means signing a contract with a **comercializadora** (supplier), such as **[Iberdrola](https://www.iberdrola.es), [Endesa](https://www.endesa.es), [Naturgy](https://www.naturgy.es)**, or **[Repsol](https://www.repsol.es)**, separately from the regional **distribuidora** (grid operator), which you never choose. You can pick a free-market offer or the regulated **PVPC** tariff. The whole market is supervised by the **[CNMC](https://www.cnmc.es)**. This guide covers setup, billing, switching, and typical costs for a newcomer signing a first contract. - How Is the Spanish Energy Market Structured? Spain separates the **comercializadora** (supplier, competitive) from the **distribuidora** (distributor, regional monopoly). The supplier is who you contract with, pay, and can switch freely. The distributor owns and maintains the physical wires or pipes to your home and is fixed by your address, not something you choose. source: https://www.how-to-spain.com/energy/electricity-gas#market-structure - How Do You Set Up Electricity and Gas When Moving Into a Spanish Home? If the property has an active supply, the fastest route is a **cambio de titular** (change of contract holder), transferring the existing contract into your name. If the supply point is inactive or new, you need an **alta nueva** (new connection), which can involve the distributor visiting the property. Expect to provide identification (passport or NIE), proof you occupy the property (rental co... source: https://www.how-to-spain.com/energy/electricity-gas#setup - How Do You Read a Spanish Energy Bill? A Spanish electricity bill combines three components: the **energy charge** (what you actually consume, priced per kWh, set by your supplier or by PVPC), the **grid access charge** (peajes de acceso, the regulated fee for using the transmission and distribution network), and **levies and taxes**, including the Impuesto Especial sobre la Electricidad and IVA. The bill also lists your **potencia... source: https://www.how-to-spain.com/energy/electricity-gas#reading-bill - How Do You Switch Energy Suppliers in Spain? Consumers in Spain can switch supplier freely, without needing to contact the outgoing supplier directly. The new supplier typically handles the switch on your behalf once you sign a new contract, and the switch must be completed within **10 business days**, extendable by up to 5 further business days for complex fieldwork (source: Real Decreto 88/2026, in force since 12 February 2026, as of Ju... source: https://www.how-to-spain.com/energy/electricity-gas#switching - What Does Energy Cost in Spain? Electricity and gas prices in Spain vary by supplier, tariff type (fixed, indexed, or PVPC), and contracted power, and prices have historically moved significantly with wholesale gas and electricity markets, including the 15 June 2022 to 31 December 2023 period when Spain and Portugal ran a coordinated wholesale gas price mechanism (the so-called "Iberian exception"). That mechanism ended on 31... source: https://www.how-to-spain.com/energy/electricity-gas#cost - Who Regulates Energy in Spain? The **CNMC** (Comision Nacional de los Mercados y la Competencia) supervises the electricity and gas markets, alongside telecom and other network industries. The CNMC publishes the **Comparador de Ofertas de Energia**, an official, advertising-free tool for comparing supplier offers, listing around 800 offers from more than 80 comercializadoras. If a complaint against a supplier is not resolved... source: https://www.how-to-spain.com/energy/electricity-gas#regulation - Related Guides [### Electricity & Gas for Residents Switching, renewal, and optimizing your tariff.](/energy/electricity-gas-for-residents)[### Best Energy Providers in Spain Ranked suppliers with real CTAs.](/energy/providers) source: https://www.how-to-spain.com/energy/electricity-gas#related-guides User question: "Do I need to set up electricity and gas separately in Spain?" Answer: Usually yes. Electricity and gas are typically contracted separately, each with its own comercializadora (supplier), though the same company (for example Naturgy, Endesa, or Iberdrola) often sells both and can bundle them on one bill. Not every home has a mains gas (gas natural or gas de ciudad) connection; coverage is concentrated in larger cities and towns, roughly 8 million supply points acr... Source: https://www.how-to-spain.com/energy/electricity-gas#faq-do-i-need-to-set-up-electricity-and-gas-separately-in-spain User question: "How long does it take to set up electricity in a new home in Spain?" Answer: It depends on whether the property already has an active supply point. Taking over an existing contract (cambio de titular) typically takes around 5 to 10 business days to become effective, reflected on the next billing cycle. Activating a point that was previously disconnected (alta nueva with an existing meter) typically takes 5 to 7 business days once the distributor validates the request, w... Source: https://www.how-to-spain.com/energy/electricity-gas#faq-how-long-does-it-take-to-set-up-electricity-in-a-new-home-in User question: "Can I switch to PVPC instead of a free-market contract?" Answer: Yes, if your contracted power falls under the eligibility threshold, you can choose the regulated PVPC (Precio Voluntario para el Pequeno Consumidor) tariff, but only through a comercializadora de referencia (reference supplier), not any licensed supplier. PVPC prices are set by Red Electrica de Espana in 15-minute blocks since 30 September 2025 (hourly before that), tracking the wholesale mark... Source: https://www.how-to-spain.com/energy/electricity-gas#faq-can-i-switch-to-pvpc-instead-of-a-free-market-contract Title: Electricity & Gas in Spain for Residents (2026) Canonical URL: https://www.how-to-spain.com/energy/electricity-gas-for-residents Markdown twin: https://www.how-to-spain.com/energy/electricity-gas-for-residents.md Updated: July 2026 BLUF: Updated July 2026. If you already set up electricity and gas in Spain, this guide covers what changes after your first year: whether your contract with **[Iberdrola](https://www.iberdrola.es), [Endesa](https://www.endesa.es), [Naturgy](https://www.naturgy.es)**, or **[Repsol](https://www.repsol.es)** is still competitive, whether the regulated **PVPC** tariff now beats your fixed price, when it makes sense to switch, and how the **bono social** discount works for eligible households. - How Do You Review Your Current Energy Contract? Pull your last few bills and check the **per-kWh energy price** and the **potencia contratada** (contracted power) standing charge separately from the regulated grid and levy components, since only the energy price is truly comparable across suppliers. Run those numbers through the [CNMC](https://www.cnmc.es)'s official **Comparador de Ofertas de Energia** against current offers from Iberdrola,... source: https://www.how-to-spain.com/energy/electricity-gas-for-residents#review - Should You Switch to PVPC or Stay on a Fixed Contract? **PVPC** is set by [Red Electrica de Espana](https://www.ree.es) in 15-minute blocks since 30 September 2025 (hourly before that) against the wholesale electricity market, which can reward households that shift laundry, charging, or heating to cheaper overnight or midday periods (source: ree.es, as of July 2026). It is only available through a comercializadora de referencia (reference supplier)... source: https://www.how-to-spain.com/energy/electricity-gas-for-residents#pvpc-vs-fixed - When Should Residents Switch Energy Suppliers? Common triggers are the end of a fixed-term contract, a competitor consistently undercutting your current per-kWh price, or moving to a new home. Since switching itself carries no fee, the main cost to check is any early-termination penalty on your existing fixed-term contract, which is capped by law at 5% of the remaining energy cost for low-voltage household supply (source: Real Decreto 88/20... source: https://www.how-to-spain.com/energy/electricity-gas-for-residents#when-to-switch - How Does the Bono Social Work for Residents? The **bono social** is a government-mandated discount applied to the PVPC regulated tariff for vulnerable consumers who meet income or household-composition criteria, applied through your supplier once approved rather than paid separately. For 1 January to 31 December 2026 the discount is **42.5%** for a "consumidor vulnerable" and **57.5%** for a "consumidor vulnerable severo," and a "vulnerab... source: https://www.how-to-spain.com/energy/electricity-gas-for-residents#bono-social - Related Guides [### Energy Providers: User Reviews Sentiment scores for every supplier.](/energy/providers-comparison)[### Energy Price Research Illustrative per-kWh bands by region.](/energy/providers-price-research) source: https://www.how-to-spain.com/energy/electricity-gas-for-residents#related-guides User question: "Am I overpaying for electricity or gas in Spain?" Answer: Possibly, if you have not reviewed your contract since signing it, especially if you are still on the same tariff a supplier assigned when you first moved in. Compare your current per-kWh price and standing charge against fresh offers from Iberdrola, Endesa, Naturgy, and Repsol, and against the regulated PVPC tariff, using the CNMC's Comparador de Ofertas de Energia. As illustrative 2026 bands,... Source: https://www.how-to-spain.com/energy/electricity-gas-for-residents#faq-am-i-overpaying-for-electricity-or-gas-in-spain User question: "Should I switch to PVPC or stay on a fixed free-market contract?" Answer: It depends on your consumption pattern. PVPC is only available through a comercializadora de referencia (reference supplier), and prices are set by Red Electrica de Espana in 15-minute blocks since 30 September 2025 (hourly before that), which can favor households that shift usage to cheaper periods, while a fixed free-market contract offers price certainty regardless of wholesale swings (sourc... Source: https://www.how-to-spain.com/energy/electricity-gas-for-residents#faq-should-i-switch-to-pvpc-or-stay-on-a-fixed-free-market-contr User question: "When should residents switch energy suppliers in Spain?" Answer: Common triggers are the end of a fixed-term contract, a sustained rise in your supplier's per-kWh price relative to competitors, or moving to a new home where you can choose a supplier fresh rather than inheriting one. Since Spain has no lock-in beyond any fixed-term penalty clause you signed, you can compare and switch at any point; where a penalty clause does apply, it is capped by law at 5%... Source: https://www.how-to-spain.com/energy/electricity-gas-for-residents#faq-when-should-residents-switch-energy-suppliers-in-spain User question: "What is the bono social and how do I apply?" Answer: The bono social is a government-mandated discount on the PVPC regulated tariff for vulnerable consumers who meet income or household-composition criteria, applied through your supplier rather than a separate agency. For 1 January to 31 December 2026 the discount is 42.5% for a "consumidor vulnerable" and 57.5% for a "consumidor vulnerable severo," with a "vulnerable severo en riesgo de exclusio... Source: https://www.how-to-spain.com/energy/electricity-gas-for-residents#faq-what-is-the-bono-social-and-how-do-i-apply User question: "Where do I complain about a Spanish energy supplier?" Answer: Start with the supplier's own complaints channel. If unresolved, Spanish consumers can escalate free of charge to a regional Junta Arbitral de Consumo (Consumer Arbitration Board), a voluntary process whose ruling is binding on both parties once accepted; 80% of electricity and gas complaints arbitrated by these boards in 2024 were decided in the consumer's favour, roughly double the 38-41% suc... Source: https://www.how-to-spain.com/energy/electricity-gas-for-residents#faq-where-do-i-complain-about-a-spanish-energy-supplier Title: Best Energy Providers in Spain (2026) Canonical URL: https://www.how-to-spain.com/energy/providers Question-form URL alias: https://www.how-to-spain.com/energy/what-are-the-best-energy-providers-in-spain Markdown twin: https://www.how-to-spain.com/energy/providers.md Updated: July 2026 BLUF: Updated July 2026. **[Iberdrola](https://www.iberdrola.es)** and **[Endesa](https://www.endesa.es)** are Spain's largest electricity suppliers, both with nationwide coverage and renewable-backed tariff options. **[Naturgy](https://www.naturgy.es)** is the traditional leader in gas supply and also sells electricity, and **[Repsol](https://www.repsol.es)** is a strong all-round challenger bundling electricity, gas, and fuel products. All four are comercializadoras regulated by the **[CNMC](https://www.cnmc.es)**, and all compete against the regulated **PVPC** tariff. Beyond the big four, other active national challengers include [EDP](https://www.edpenergia.es), [TotalEnergies](https://www.totalenergies.es), Repsol, [Octopus Energy](https://octopusenergy.es), and [Holaluz](https://www.holaluz.com), plus dozens of smaller comercializadoras; the CNMC publishes the full, current census of registered electricity suppliers at its official registry (source: CNMC, Listado de Comercializadoras de Electricidad, sede.cnmc.gob.es, as of July 2026). - Top Energy Providers in Spain Ranked by network reach, product breadth, and how commonly each is recommended to newcomers setting up a home in Spain. Best for Green Tariffs ### Iberdrola 4.2Spain's largest electricity utility by generation capacity, with a strong focus on renewable energy and green tariff products sold nationwide. Why we recommend it: Largest electricity supplier in Spain with the broadest renewable generat... source: https://www.how-to-spain.com/energy/providers#top-providers - How Do You Choose an Energy Provider in Spain? **Start by comparing the per-kWh energy price and standing charge separately from the regulated grid and levy components**, since only the energy portion differs between suppliers. If green sourcing matters, compare Iberdrola and Endesa's renewable-tariff certifications. If gas is your main need, Naturgy's traditional gas focus may offer a wider range of gas-specific options. source: https://www.how-to-spain.com/energy/providers#how-to-choose - What Should Expats Know When Choosing a Supplier? Most expats prioritize a supplier that offers a straightforward **alta nueva** (new connection) or **cambio de titular** (change of contract holder) process, English-language customer service where available, and a clear combined electricity-and-gas bill. See the full [energy hub](/energy) for the complete market-structure breakdown, including the difference between your supplier and the region... source: https://www.how-to-spain.com/energy/providers#expat-types - How Much Does Energy Cost by Supplier? Energy pricing in Spain varies by supplier, tariff type, contracted power, and region, and has moved significantly with wholesale gas and electricity markets in recent years, so there is no single flat rate across providers. See [our price research page](/energy/providers-price-research) for illustrative per-kWh bands by supplier and tariff type. Illustration of a lightbulb, a plug, and a home... source: https://www.how-to-spain.com/energy/providers#cost - Entity References Regulator: [CNMC](https://www.cnmc.es) (Comision Nacional de los Mercados y la Competencia). Grid operator (transmission): **[Red Electrica (REE)](https://www.ree.es)**. See our [user-review comparison](/energy/providers-comparison) for sentiment data on each provider listed above. source: https://www.how-to-spain.com/energy/providers#entity-references - Official Sources Supplier websites, [CNMC](https://www.cnmc.es). Updated: July 2026. Market-share rankings are sourced from the CNMC's quarterly retail electricity and gas market supervision report for Q2 2025, and green-tariff certification from the CNMC guarantees-of-origin registry, both as of July 2026. source: https://www.how-to-spain.com/energy/providers#official-sources - Related Guides [### Energy Providers: User Reviews Sentiment scores for every supplier above.](/energy/providers-comparison)[### Electricity & Gas in Spain The core setup and switching explainer.](/energy/electricity-gas) source: https://www.how-to-spain.com/energy/providers#related-guides User question: "Which is the best overall energy provider in Spain?" Answer: Iberdrola and Endesa are the two largest electricity suppliers in Spain, both offering nationwide coverage and green tariff options. By CNMC electricity sales market share for the second quarter of 2025, Endesa led with 28%, followed by Iberdrola with 23% and Naturgy with 8%, though Naturgy remains the dominant player in the separate regulated PVPC segment. Naturgy is the traditional leader in... Source: https://www.how-to-spain.com/energy/providers#faq-which-is-the-best-overall-energy-provider-in-spain User question: "Do these suppliers offer green electricity tariffs?" Answer: Iberdrola markets itself heavily around renewable generation and green tariff options, and Endesa and Naturgy also sell renewable-backed tariffs. All Spanish green-electricity products must be backed by a Garantia de Origen (Guarantee of Origin) certificate issued under CNMC oversight, confirming the electricity sold was generated from renewable sources. Iberdrola's Energy Wallet lets customers... Source: https://www.how-to-spain.com/energy/providers#faq-do-these-suppliers-offer-green-electricity-tariffs User question: "Can I get electricity and gas from the same supplier in Spain?" Answer: Yes. Iberdrola, Endesa, Naturgy, and Repsol all sell combined electricity and gas contracts, often bundled onto a single monthly bill. Bundling with one supplier can simplify admin, but it is still worth comparing the combined price against separate best-in-class offers for each fuel using the CNMC's Comparador de Ofertas de Energia. Source: https://www.how-to-spain.com/energy/providers#faq-can-i-get-electricity-and-gas-from-the-same-supplier-in-spai Title: Best Energy Providers in Spain for Residents (2026) Canonical URL: https://www.how-to-spain.com/energy/providers-for-residents Markdown twin: https://www.how-to-spain.com/energy/providers-for-residents.md Updated: July 2026 BLUF: Updated July 2026. If you already have electricity or gas set up in Spain, this guide compares **[Iberdrola](https://www.iberdrola.es), [Endesa](https://www.endesa.es), [Naturgy](https://www.naturgy.es)**, and **[Repsol](https://www.repsol.es)** for switching, renewal, and optimizing an existing contract, rather than the first-contract setup covered on our [main providers guide](/energy/providers). - How Do Residents Compare Iberdrola, Endesa, Naturgy, and Repsol? For an existing resident, the comparison that matters is your **current per-kWh energy price and standing charge** against each supplier's current offer for your consumption profile, not brand size. **Iberdrola** leads on renewable-tariff options, **Endesa** offers broad nationwide bundled electricity and gas, **Naturgy** remains strongest specifically for gas, and **Repsol** adds fuel-station... source: https://www.how-to-spain.com/energy/providers-for-residents#compare - When Should Residents Switch Supplier? Switch when a competitor's per-kWh price beats yours after accounting for any early-termination penalty on your current contract, when your fixed-term contract is ending, or when you want to move from a fixed contract to the regulated PVPC tariff or vice versa. There is no cost to switch supplier itself. See our [user-review comparison](/energy/providers-comparison) for service and billing-clar... source: https://www.how-to-spain.com/energy/providers-for-residents#when-switch - What Should You Check at Contract Renewal? At renewal, check whether your supplier has moved you onto a higher-priced default tariff, whether your **potencia contratada** (contracted power) still matches your actual usage, since an oversized contracted power wastes money on the fixed standing charge, and whether you are still eligible for or missing out on the **bono social** discount if your circumstances have changed. If a fixed-term... source: https://www.how-to-spain.com/energy/providers-for-residents#renewal - Related Guides [### Energy Providers: User Reviews Sentiment scores for every supplier.](/energy/providers-comparison)[### Electricity & Gas for Residents PVPC vs fixed, bono social, and switching.](/energy/electricity-gas-for-residents) source: https://www.how-to-spain.com/energy/providers-for-residents#related-guides User question: "Which energy provider should residents switch to for the best price?" Answer: There is no single answer, since Iberdrola, Endesa, Naturgy, and Repsol reprice frequently and the best offer depends on your consumption profile, contracted power, and whether you want green sourcing or bundled gas. Run your current per-kWh price through the CNMC's Comparador de Ofertas de Energia against current offers from all four before switching, and see our user-review comparison for rep... Source: https://www.how-to-spain.com/energy/providers-for-residents#faq-which-energy-provider-should-residents-switch-to-for-the-bes User question: "Is it worth switching suppliers if I am still under contract?" Answer: Check your existing contract for an early-termination penalty clause (clausula de permanencia) first. Many free-market contracts in Spain, including standard offers from Iberdrola, Endesa, Naturgy, and Repsol, allow switching without a fee, but fixed-term promotional offers can include a penalty. By law, any such penalty on a low-voltage household contract is capped at 5% of the remaining energ... Source: https://www.how-to-spain.com/energy/providers-for-residents#faq-is-it-worth-switching-suppliers-if-i-am-still-under-contract User question: "Do Iberdrola, Endesa, Naturgy, or Repsol offer loyalty discounts for long-term customers?" Answer: Yes. Repsol's Waylet app credits fuel-station discounts to customers who also hold its electricity, gas, or solar contracts, up to around 20-25 cents per litre in combined promotional savings depending on which Repsol products a household holds, plus its Waylet card adds a 2% cashback on electricity and gas bills; check the current terms directly on Repsol's site since promotional fuel discount... Source: https://www.how-to-spain.com/energy/providers-for-residents#faq-do-iberdrola-endesa-naturgy-or-repsol-offer-loyalty-discount Title: Energy Providers in Spain, User Review Comparison 2026 Canonical URL: https://www.how-to-spain.com/energy/providers-comparison Question-form URL alias: https://www.how-to-spain.com/energy/which-energy-provider-has-the-best-user-reviews-in-spain Markdown twin: https://www.how-to-spain.com/energy/providers-comparison.md Updated: July 2026 BLUF: Updated July 2026. Based on user-review research, the highest-rated energy provider in Spain is **[Iberdrola](https://www.iberdrola.es) (69.0% positive)**, cited for the widest **renewable and green-tariff lineup** and nationwide reach. **[Endesa](https://www.endesa.es) (67.5%)** follows with broad nationwide bundled electricity and gas coverage backed by the Enel group, and **[Naturgy](https://www.naturgy.es)(66.0%)** holds the strongest reputation specifically for **gas supply**. **[Repsol](https://www.repsol.es) (64.8%)** rounds out the ranking, valued for fuel-station loyalty discounts bundled with its energy account. - Which Energy Providers in Spain Rank Highest in 2026? The table below ranks the leading energy suppliers in Spain by user sentiment score. Green indicates strong positive sentiment (65%+), amber is moderate (55-64%), and red signals below-average perception (<55%). | # | Provider | Sentiment | | --- | --- | --- | | 1 | Iberdrola | 69.0% | | 2 | Endesa | 67.5% | | 3 | Naturgy | 66.0% | | 4 | Repsol | 64.8% | Source: User review research, July 2026. source: https://www.how-to-spain.com/energy/providers-comparison#ranking - What Do Users Say Is Good and Bad About Spanish Energy Providers? Across the four major suppliers, the most consistently surfaced positive and negative characteristics reveal what users associate with each brand for energy in Spain. ### What reviewers praise - +Widest renewable and green-tariff lineupIberdrola - +Nationwide bundled electricity and gas coverageEndesa - +Traditional leader specifically in gas supplyNaturgy - +Fuel-station loyalty discounts bund... source: https://www.how-to-spain.com/energy/providers-comparison#feedback - What Does Each Energy Provider Score and Why? Below is a detailed breakdown of every leading energy provider in Spain, ordered by sentiment score. Each card shows the positive and negative characteristics users associate with each brand. ### Iberdrola 69.0% sentimentIberdrola is Spain's largest electricity utility by generation capacity. source: https://www.how-to-spain.com/energy/providers-comparison#detailed-reviews - How Should You Pick the Right Energy Provider in Spain? - **Green electricity priority**: choose Iberdrola (69.0%) for the widest renewable and green-tariff lineup. - **Bundled electricity and gas, nationwide coverage**: choose Endesa (67.5%), backed by the international Enel group. - **Gas is your primary need**: choose Naturgy (66.0%), the traditional leader specifically in Spanish gas supply. source: https://www.how-to-spain.com/energy/providers-comparison#recommendations - Related Guides [### Best Energy Providers in Spain Ranked suppliers with real CTAs.](/energy/providers)[### Energy Price Research Illustrative per-kWh bands, no sentiment.](/energy/providers-price-research) source: https://www.how-to-spain.com/energy/providers-comparison#related-guides User question: "Which energy provider in Spain has the best user reviews in 2026?" Answer: As of July 2026, Iberdrola leads with a 69.0% positive sentiment score, repeatedly cited for the widest renewable and green-tariff lineup and nationwide reach. Endesa (67.5%) follows, praised for nationwide bundled electricity and gas coverage backed by the Enel group, and Naturgy (66.0%) is the top pick specifically for gas. Repsol (64.8%) rounds out the ranking, valued for fuel-station loyalt... Source: https://www.how-to-spain.com/energy/providers-comparison#faq-which-energy-provider-in-spain-has-the-best-user-reviews-in- User question: "Which Spanish energy supplier is best for green electricity?" Answer: Iberdrola (69.0%) has the strongest reputation for renewable-backed green tariffs and the broadest green-tariff product range of the four major suppliers. Endesa (67.5%) also sells renewable-backed options. All four suppliers' green tariffs must carry a CNMC-supervised Garantia de Origen certificate confirming the electricity sold was generated from renewable sources, so the certification basis... Source: https://www.how-to-spain.com/energy/providers-comparison#faq-which-spanish-energy-supplier-is-best-for-green-electricity User question: "Which Spanish energy supplier is best for gas?" Answer: Naturgy (66.0%) is the traditional leader in gas supply in Spain and carries the strongest reputation specifically for gas contracts, though Endesa (67.5%), Iberdrola (69.0%), and Repsol (64.8%) all also sell combined electricity and gas contracts. Source: https://www.how-to-spain.com/energy/providers-comparison#faq-which-spanish-energy-supplier-is-best-for-gas User question: "Which Spanish energy supplier is best for combined electricity, gas, and fuel savings?" Answer: Repsol (64.8%) stands out specifically for bundling electricity and gas with loyalty discounts at Repsol fuel stations, which makes it a strong pick for households that also drive frequently. Endesa (67.5%) and Iberdrola (69.0%) offer broader nationwide coverage without the fuel-loyalty angle. Source: https://www.how-to-spain.com/energy/providers-comparison#faq-which-spanish-energy-supplier-is-best-for-combined-electrici Title: Energy Prices in Spain (2026) Canonical URL: https://www.how-to-spain.com/energy/providers-price-research Question-form URL alias: https://www.how-to-spain.com/energy/how-much-does-energy-cost-in-spain Markdown twin: https://www.how-to-spain.com/energy/providers-price-research.md Updated: July 2026 BLUF: Updated July 2026. Energy pricing in Spain varies by **supplier, tariff type, contracted power, and wholesale market movement**, so there is no single flat rate across the market. This page presents **illustrative price bands** by supplier and tariff type rather than a flat rate card. Energy is the most price-volatile vertical on this site: the bands below reflect a July 2026 research pass against the [CNMC](https://www.cnmc.es), [Red Electrica](https://www.ree.es)'s ESIOS, and supplier tariff pages, but they move often, so treat them as a starting point, not a locked-in quote. Get a live quote from **[Iberdrola](https://www.iberdrola.es), [Endesa](https://www.endesa.es), [Naturgy](https://www.naturgy.es)**, or **[Repsol](https://www.repsol.es)**, or check the regulated **PVPC** rate, for an exact current price. - What Are the Illustrative Price Bands by Supplier and Tariff? **The EUR and cent-per-kWh figures below are illustrative bands from a July 2026 research pass, not a locked-in quote.** Electricity and gas prices in Spain depend on wholesale market movement, tariff type, contracted power, and region, so treat every number as a starting reference and confirm your own live price with the CNMC's Comparador de Ofertas de Energia before signing. The table below l... source: https://www.how-to-spain.com/energy/providers-price-research#price-bands - How Does PVPC Compare to Free-Market Tariffs? **PVPC** (Precio Voluntario para el Pequeno Consumidor) is set by Red Electrica de Espana in 15-minute blocks since 30 September 2025, replacing the hourly pricing used since 2014, against the wholesale electricity market, so its cost swings with daily and seasonal wholesale conditions (source: ree.es, as of July 2026). A fixed free-market contract from **Iberdrola, Endesa, Naturgy**, or **Reps... source: https://www.how-to-spain.com/energy/providers-price-research#pvpc-vs-market - How Do Prices Vary by Region? The regulated grid access charge and the PVPC energy price are set nationally, so there is no per-province PVPC price table the way there is for some other EU countries' regional utility structure. The Balearic and Canary Islands are the main structural exception, since their extra-peninsular generation costs are higher and are compensated through the national regulated system rather than fully... source: https://www.how-to-spain.com/energy/providers-price-research#regional - What Makes Up the Price on Your Bill? Every Spanish electricity bill combines the **energy charge** (per kWh, set by your supplier or PVPC), the **grid access charge** (peajes de acceso, regulated, covers the distribution and transmission network), and **taxes and levies**, including the Impuesto Especial sobre la Electricidad and IVA. Regulated grid charges (peajes) plus system charges (cargos) together make up roughly 40% of a ty... source: https://www.how-to-spain.com/energy/providers-price-research#bill-breakdown - Which Pricing Approach Fits Your Situation? - Newly arrived, price-sensitive Compare PVPC against a fixed offer from all four suppliers using the CNMC's Comparador de Ofertas de Energia before committing to a first contract. - Flexible daily usage (remote work, EV charging overnight) PVPC's 15-minute pricing (since 30 September 2025; hourly before) can reward shifting consumption to cheaper periods, though this needs verifying against cu... source: https://www.how-to-spain.com/energy/providers-price-research#picking-guide - Related Guides [### Best Energy Providers in Spain Ranked suppliers with real CTAs.](/energy/providers)[### Energy Providers: User Reviews Sentiment scores, no pricing.](/energy/providers-comparison) source: https://www.how-to-spain.com/energy/providers-price-research#related-guides User question: "Why doesn't this page list a single price per kWh?" Answer: Energy prices in Spain move with wholesale electricity and gas markets, your tariff type (PVPC, fixed, or indexed), your region, and your contracted power. A flat rate card would be misleading and quickly outdated, so this page presents illustrative price bands by supplier and tariff type instead, cross-checked against the CNMC, Red Electrica's ESIOS, and supplier tariff pages as of July 2026;... Source: https://www.how-to-spain.com/energy/providers-price-research#faq-why-doesnt-this-page-list-a-single-price-per-kwh User question: "Is PVPC cheaper than a fixed free-market contract?" Answer: It depends on the day and your usage pattern, since PVPC updates every 15 minutes against the wholesale market while a fixed contract holds one price regardless of wholesale swings. Neither is universally cheaper: the PVPC's 3-month trailing average was around EUR 0.1326/kWh, with the July 2026 monthly average closer to EUR 0.141/kWh and daily prices swinging from about EUR 0.014/kWh at the che... Source: https://www.how-to-spain.com/energy/providers-price-research#faq-is-pvpc-cheaper-than-a-fixed-free-market-contract User question: "Do energy prices vary by region in Spain?" Answer: The regulated grid access charge component and the PVPC energy price are set nationally and are the same across mainland Spain, so there is no per-province PVPC price table the way there is for Austria's per-Bundesland structure. The main structural regional difference is the Balearic and Canary Islands' extra-peninsular generation costs, which are subsidised by the state rather than passed ful... Source: https://www.how-to-spain.com/energy/providers-price-research#faq-do-energy-prices-vary-by-region-in-spain