# Energy in Spain (2026) > Household electricity and gas in Spain: the CNMC-regulated market, supplier vs distributor, PVPC regulated tariff, switching suppliers freely, and the leading comercializadoras, Iberdrola, Endesa, Naturgy, and Repsol. Updated: July 2026 · By Jules · URL: https://www.how-to-spain.com/energy 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)** operates the national high-voltage transmission grid; regional distribution is split among the distribution arms of Iberdrola, Endesa, Naturgy, and other regional players. Bills often blur this distinction because the supplier bills you for both energy and the regulated grid access charges in one invoice. Consumers can switch supplier freely at any time, at no cost. The new comercializadora must complete the switch within **10 business days** of the contract being signed, extendable by up to 5 further business days for complex field visits (source: Real Decreto 88/2026, in force since 12 February 2026, as of July 2026). Illustration of a lightbulb, a plug, and a home meter, for choosing an electricity and gas provider in Spain.Power, plug, and meter: energy in Spain. ## 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 September 2025 the price is set in 15-minute blocks (96 prices a day, published the evening before around 20:15), replacing the hourly pricing used since 2014 (source: Red Electrica de Espana, ree.es, as of July 2026). It sits alongside, not instead of, free-market offers from comercializadoras like Iberdrola, Endesa, Naturgy, and Repsol. PVPC is only available through a **comercializadora de referencia** (reference supplier), not through every licensed comercializadora. ## 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 the contracted power, could be charged during the first 6 months of a contract, but Real Decreto 88/2026 removed the distributor's right to charge this deposit to the household consumer, shifting the equivalent guarantee obligation onto the comercializadora's relationship with the grid operator instead (source: Real Decreto 88/2026, in force since 12 February 2026, as of July 2026). A consumer-protection mechanism called the **bono social** (social tariff) discounts the PVPC bill for vulnerable consumers: for 1 January to 31 December 2026 the discount is **42.5%** for a "consumidor vulnerable" and **57.5%** for a "consumidor vulnerable severo," while a household classified "vulnerable severo en riesgo de exclusion social" pays 0% and cannot be disconnected. To qualify, the account holder must be a natural person on the PVPC tariff at their primary residence with contracted power of 10 kW or less, and household income must be at or below 1.5x the 14-payment IPREM (EUR 12,600/year for a single person, plus EUR 2,520 per additional adult and EUR 4,200 per additional minor), with the "vulnerable severo" threshold set at 50% of those amounts (source: CNMC, cnmc.es, as of July 2026). Illustration of a lightbulb, a plug, and a home meter, for choosing an electricity and gas provider in Spain.Power, plug, and meter: energy in Spain. ## 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 suppliers.](/energy/providers-for-residents)[### Energy Providers: User Reviews Which suppliers have the best user reviews.](/energy/providers-comparison)[### Energy Price Research Per-kWh price bands by supplier and region.](/energy/providers-price-research) ## 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) ## Frequently Asked Questions ### Who regulates energy in Spain? 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 Arbitration Board), a voluntary, binding out-of-court process; 80% of electricity and gas complaints arbitrated by these boards were decided in the consumer's favour in 2024, compared with 38-41% resolved in the consumer's favour at first instance by the supplier itself (source: CNMC, cnmc.es, press release dated 28 April 2026). ### Can I choose my own energy supplier in Spain? 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, extendable by up to 5 further business days when complex fieldwork is needed, the switch itself is free, and any early-termination penalty for leaving a fixed-term contract early is capped at 5% of the remaining energy cost for low-voltage household supply (source: Real Decreto 88/2026, in force since 12 February 2026, as of July 2026). ### What is the difference between a supplier and a distributor in Spain? 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 Iberdrola, Endesa, Naturgy, and other regional players. --- Source: https://www.how-to-spain.com/energy Last updated: Updated: July 2026 Format: LLM-readable Markdown twin (.md) of the canonical HTML page.