# How to Portugal, Energy > Electricity and gas in Portugal: retailers, tariffs, switching, regulated vs indexed tariffs, and grid fees. This file is the ReadMe.LLM-style projection of the "Energy" section of www.how-to-portugal.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: 2026-09-02. Regulators referenced in this category: ERSE, ADENE. 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: Portuguese-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-portugal.com. Electricity and gas in Portugal: retailers, tariffs, switching, regulated vs indexed tariffs, and grid fees. URL trees: English (default), Portuguese (/pt prefix), question-form aliases (e.g. /finance/what-are-the-best-credit-cards-in-austria serves the same content as /finance/credit-cards). All EUR amounts and dates are as-of the page's "Updated:" line. Regulators: ERSE, ADENE. Title: Energy in Portugal (2026) Canonical URL: https://www.how-to-portugal.com/energy Question-form URL alias: https://www.how-to-portugal.com/how-to-set-up-electricity-and-gas-in-portugal Markdown twin: https://www.how-to-portugal.com/energy.md BLUF: Updated August 2026. Portugal's energy market is **liberalised**. You can choose your electricity and natural-gas supplier on the mainland, but the distribution grid is a regional monopoly. **ERSE** regulates prices and the official simulator helps compare tariffs. Bills split into energy, grid access, and taxes. All household contracts require a **NIF, supply address, and IBAN**. - How does the energy market work in Portugal? The electricity and natural-gas market is liberalised on the Portuguese mainland. You can choose your supplier freely, but distribution belongs to regional grid operators: E-Redes on the mainland, EDA in the Azores, and EEM in Madeira. Switching supplier does not interrupt supply. source: https://www.how-to-portugal.com/energy#market - How much do electricity and gas cost in Portugal? For a typical profile of 1,900 kWh/year at 3.45 kVA, annual electricity bills range from EUR 397 to EUR 485 on the free market. Bills split into energy and supply (about 45-55%), grid access tariffs (30-35%), and taxes and levies (15-20%). Natural gas depends on network availability at the address. source: https://www.how-to-portugal.com/energy#costs - How do you set up electricity and gas in your own name? You need a NIF, supply address, and the CPE for electricity or CUI for gas from the meter. Contracts can be signed online, by phone, or in store. Most discounts require direct debit from a Portuguese IBAN and electronic billing. source: https://www.how-to-portugal.com/energy#setup - Which energy topics should you explore? [### Electricity and gas Understand the liberalised market, the bill, and ERSE's role.](/energy/electricity-gas)[### Setting up utilities NIF, meter point, reading, and required documents.](/energy/setting-up-utilities)[### Best energy providers Top suppliers for green, cheapest, and dynamic tariffs.](/energy/providers)[### Price research Comparative tariff table and price bands.](/energy/provi... source: https://www.how-to-portugal.com/energy#explore - Related Guides [### Electricity and gas How the market and bill work.](/energy/electricity-gas)[### Setting up utilities Steps to activate contracts.](/energy/setting-up-utilities)[### Best energy providers Energy supplier ranking.](/energy/providers)[### Price research Full tariff table.](/energy/providers-price-research) source: https://www.how-to-portugal.com/energy#related-guides User question: "Can I switch energy supplier in Portugal?" Answer: Yes. The market is liberalised. You can switch supplier at any time with no supply interruption, usually within 1 to 7 working days. Source: https://www.how-to-portugal.com/energy#faq-can-i-switch-energy-supplier-in-portugal User question: "Do I need a NIF to contract energy?" Answer: Yes. All household contracts require a NIF, supply address, and in most cases a Portuguese IBAN for direct debit. Source: https://www.how-to-portugal.com/energy#faq-do-i-need-a-nif-to-contract-energy User question: "What is ERSE?" Answer: ERSE (Entidade Reguladora dos Serviços Energéticos) regulates prices and practices in Portugal's energy sector. Source: https://www.how-to-portugal.com/energy#faq-what-is-erse User question: "Can the social tariff stack with other campaigns?" Answer: Yes. The 33.8% electricity discount applies on top of any tariff, including the cheapest offers on the free market. Source: https://www.how-to-portugal.com/energy#faq-can-the-social-tariff-stack-with-other-campaigns Title: Electricity and Gas in Portugal (2026) Canonical URL: https://www.how-to-portugal.com/energy/electricity-gas Question-form URL alias: https://www.how-to-portugal.com/how-much-does-electricity-cost-in-portugal Markdown twin: https://www.how-to-portugal.com/energy/electricity-gas.md BLUF: Updated August 2026. Portugal has a **liberalised** energy market on the mainland. You can choose your electricity and gas supplier, but the distribution grid is run by regional operators. **E-Redes** covers the mainland, **EDA** the Azores, and **EEM** Madeira. Bills split into energy, grid access, and taxes. The **social tariff** gives a 33.8% discount on electricity for eligible households. - What is the energy market like in Portugal? The electricity and natural-gas market in mainland Portugal is liberalised. Any licensed supplier can sell energy anywhere on the grid. In the Azores and Madeira, the market is regulated with its own suppliers of last resort. source: https://www.how-to-portugal.com/energy/electricity-gas#market - What are the best electricity tariffs? These are the top-ranked fixed tariffs in the catalogue for a typical 1,900 kWh/year mainland profile. G9 Energy ### G9 Energy +Vantagem Luz (fixa) 4.4The free market's cheapest kWh: 0,1348 EUR Unit rate13.48 cents per kWhPrice holdPrice held 12 monthsSupportEnglish support is limited[Get this tariff](https://g9energy.pt)Tariff(1) - G9 Energy +Vantagem Luz (fixa)EUR 397.41electricity / fixed /... source: https://www.how-to-portugal.com/energy/electricity-gas#top-tariffs - What is on the electricity bill? The electricity bill splits into three main blocks. The energy and supply price makes up about 45-55% of the bill for a 1,900 kWh/year profile. The grid access tariff (TAR) accounts for 30-35%. source: https://www.how-to-portugal.com/energy/electricity-gas#bill - What is the regulated electricity tariff? The regulated tariff is sold by SU Eletricidade, the EDP group's supplier of last resort. Prices are set annually by ERSE with no campaigns or discounts. It acts as a neutral benchmark for comparing the free market. source: https://www.how-to-portugal.com/energy/electricity-gas#regulated - Who is eligible for the social energy tariff? The social tariff gives a 33.8% discount on electricity and 31.2% on gas, applicable to any tariff. Assignment is automatic through data cross-checking between Social Security and the Tax Authority. Eligible households receive specific social benefits or have annual income up to EUR 6,272.64. source: https://www.how-to-portugal.com/energy/electricity-gas#social - How do you switch energy supplier? You can switch supplier at any time at no cost and with no supply interruption. The new entity handles the process with the grid operator. The switch is usually completed within 1 to 7 working days. source: https://www.how-to-portugal.com/energy/electricity-gas#switching - What are green and indexed tariffs? Green tariffs advertise 100% renewable electricity, certified by EEGO/REN Guarantees of Origin. A certified green claim depends on the supplier holding enough guarantees to cover the energy it sells. Indexed tariffs link the per-kWh price to the OMIE wholesale market. source: https://www.how-to-portugal.com/energy/electricity-gas#green - How We Compared These Energy Tariffs We compared catalogue tariffs by estimated annual cost for a 1,900 kWh/year profile, per-kWh price, standing charge, price guarantee, contract lock-in, renewable share, English support, and available regions. Values come from supplier websites accessed in August 2026 and include taxes. source: https://www.how-to-portugal.com/energy/electricity-gas#method - Related Guides [### Energy in Portugal Sector overview.](/energy)[### Setting up utilities Practical steps to activate contracts.](/energy/setting-up-utilities)[### Best energy providers Ranking by tariff type.](/energy/providers)[### Price research Comparative tariff table.](/energy/providers-price-research) source: https://www.how-to-portugal.com/energy/electricity-gas#related-guides User question: "Can I get natural gas at any address?" Answer: No. Natural gas is only available where a distribution network exists, usually in cities and surrounding areas. Off-grid alternatives include LPG cylinders or other heating solutions. Source: https://www.how-to-portugal.com/energy/electricity-gas#faq-can-i-get-natural-gas-at-any-address User question: "What is the CPE?" Answer: The CPE (Código de Ponto de Entrega) identifies the electricity meter at an address. The supplier asks for it to activate or transfer a contract. Source: https://www.how-to-portugal.com/energy/electricity-gas#faq-what-is-the-cpe User question: "Will the regulated tariff end?" Answer: Yes. The regulated electricity market is available until 31 December 2027. The regulated natural-gas market already ended on 31 December 2025. Source: https://www.how-to-portugal.com/energy/electricity-gas#faq-will-the-regulated-tariff-end User question: "Are indexed tariffs cheaper?" Answer: They depend on the daily OMIE wholesale market price. They can be cheaper during downturns but rise when the market climbs. They are not predictable. Source: https://www.how-to-portugal.com/energy/electricity-gas#faq-are-indexed-tariffs-cheaper Title: What Are the Best Energy Providers in Portugal? (2026) Canonical URL: https://www.how-to-portugal.com/energy/providers Question-form URL alias: https://www.how-to-portugal.com/what-is-the-best-energy-provider-in-portugal Markdown twin: https://www.how-to-portugal.com/energy/providers.md BLUF: Updated August 2026. The cheapest suppliers for a 1,900 kWh/year profile are **G9 Energy**, **Endesa Digital**, and **Goldenergy Digital**. For 100% renewable energy, **Coopérnico**, **Endesa Digital**, and **EDP Comercial Verde** stand out. If you prefer wholesale market pricing, choose tariffs indexed to **OMIE**. All prices are from August 2026 and require a NIF and IBAN. - Which suppliers are the cheapest? The cheapest fixed tariffs for a typical apartment profile are from G9 Energy, Endesa Digital, and Goldenergy Digital. The saving against the regulated tariff can exceed EUR 50 per year. G9 Energy ### G9 Energy +Vantagem Luz (fixa) 4.4The free market's cheapest kWh: 0,1348 EUR [Get this tariff](https://g9energy.pt)Price per kWhEUR 0.13Standing chargeEUR 164.18/year (EUR 0.45/day)Estimated annua... source: https://www.how-to-portugal.com/energy/providers#cheapest - Which suppliers are the greenest? Green tariffs use Guarantees of Origin to certify 100% renewable electricity. Coopérnico is a non-profit cooperative, while Endesa Digital and EDP Comercial Verde combine competitive pricing with renewable origin. Endesa ### Endesa Tarifa Digital Luz (100% verde) 4.5EUR 0.1399 per kWh, among the cheapest with a permanent discount [Get this tariff](https://www.endesa.pt)Price per kWhEUR 0.14Stan... source: https://www.how-to-portugal.com/energy/providers#green - Which tariffs are indexed? Indexed tariffs follow the OMIE wholesale market price. EDP Comercial and Yes Energy offer this product type. They suit users who track the market and accept monthly bill variation. source: https://www.how-to-portugal.com/energy/providers#dynamic - Which suppliers are best for gas? The regulated gas market ended in 2025. For 2,000 kWh/year, the cheapest options in August 2026 are from EDP Comercial and Endesa Digital, both with permanent discounts. EDP Comercial ### EDP Comercial Natural Gas, direct debit and e-billing (Portugal) 4.1The lowest daily standing charge on the market, EUR 0.1058 a day [Get this tariff](https://www.edp.pt)Price per kWhEUR 0.09Standing chargeEUR... source: https://www.how-to-portugal.com/energy/providers#gas - How do you choose a supplier? First compare the estimated annual cost in the ERSE simulator for your CPE. Then check the price-guarantee length, discount conditions (direct debit and electronic billing), customer support, and energy origin. If you are newly arrived, prefer suppliers with English support or simple online signup. source: https://www.how-to-portugal.com/energy/providers#how-to-choose - Related Guides [### Energy in Portugal Sector overview.](/energy)[### Electricity and gas How the market and bill work.](/energy/electricity-gas)[### Setting up utilities Steps to activate contracts.](/energy/setting-up-utilities)[### Price research Full tariff table.](/energy/providers-price-research) source: https://www.how-to-portugal.com/energy/providers#related-guides User question: "Which electricity supplier is cheapest?" Answer: For a 1,900 kWh/year, 3.45 kVA profile, the cheapest tariffs in August 2026 are from G9 Energy, Endesa Digital, and Goldenergy Digital. Source: https://www.how-to-portugal.com/energy/providers#faq-which-electricity-supplier-is-cheapest User question: "Is the indexed tariff worth it?" Answer: Only if you track the wholesale market and can tolerate volatility. In 2022 and 2023, indexed tariffs far exceeded fixed tariffs. Source: https://www.how-to-portugal.com/energy/providers#faq-is-the-indexed-tariff-worth-it User question: "Is EDP Comercial the same as E-Redes?" Answer: No. EDP Comercial is a retail supplier in the EDP group. E-Redes manages electricity distribution on the mainland. Source: https://www.how-to-portugal.com/energy/providers#faq-is-edp-comercial-the-same-as-e-redes Title: Energy Price Research in Portugal (2026) Canonical URL: https://www.how-to-portugal.com/energy/providers-price-research Question-form URL alias: https://www.how-to-portugal.com/how-much-does-electricity-cost-in-portugal Markdown twin: https://www.how-to-portugal.com/energy/providers-price-research.md BLUF: Updated August 2026. This page lists every energy tariff in the catalogue with **per-kWh price**, **standing charge**, and **estimated annual cost**. Values include taxes and reflect a 1,900 kWh/year electricity profile or 2,000 kWh/year gas profile. Use the filters to see only fixed, indexed, green, or no-contract tariffs. - Energy Tariff Table All electricity, natural-gas, and dual tariffs, grouped by supplier. 36 tariffs in the catalogue. Your situation Fixed price30Indexed5Green21No contract21Filters grey out tariffs that do not match; every tariff stays in the table so the page remains crawlable. source: https://www.how-to-portugal.com/energy/providers-price-research#picker - How was this research compiled? Prices come from supplier websites accessed in August 2026. Each product includes a source URL and access date. We record the per-kWh price, standing charge, price guarantee, contract lock-in, and estimated annual cost. source: https://www.how-to-portugal.com/energy/providers-price-research#method - Related Guides [### Energy in Portugal Sector overview.](/energy)[### Electricity and gas How the market and bill work.](/energy/electricity-gas)[### Best energy providers Ranking by tariff type.](/energy/providers)[### Setting up utilities Steps to activate contracts.](/energy/setting-up-utilities) source: https://www.how-to-portugal.com/energy/providers-price-research#related-guides User question: "How often are prices updated?" Answer: We verify prices on each supplier's website. Each product's access date is in the catalogue. Values are from August 2026. Source: https://www.how-to-portugal.com/energy/providers-price-research#faq-how-often-are-prices-updated User question: "What does n/a mean?" Answer: n/a means the value was not published on the supplier's website at the time of research. We do not guess. Source: https://www.how-to-portugal.com/energy/providers-price-research#faq-what-does-na-mean User question: "Do prices include taxes?" Answer: Yes. Estimated annual costs include 6% VAT on electricity and 23% VAT on gas, plus applicable levies. Source: https://www.how-to-portugal.com/energy/providers-price-research#faq-do-prices-include-taxes Title: Setting Up Utilities in Portugal (2026) Canonical URL: https://www.how-to-portugal.com/energy/setting-up-utilities Question-form URL alias: https://www.how-to-portugal.com/how-to-set-up-electricity-and-gas-in-portugal Markdown twin: https://www.how-to-portugal.com/energy/setting-up-utilities.md BLUF: Updated August 2026. To contract electricity or natural gas in Portugal you need a **NIF**, **supply address**, and the meter **CPE** (electricity) or **CUI** (gas). Most discounts require a **Portuguese IBAN** and electronic billing. If you are moving house, request a change of titleholder or a new contract. Short-stay visitors or tourists should generally not open a household contract: energy is handled by the landlord or accommodation unit. - What documents do I need to contract energy? All household contracts require three pieces of information: Portuguese NIF, supply address, and delivery-point identification. For electricity this is the CPE; for natural gas it is the CUI. Most discounts also require a Portuguese IBAN for direct debit. source: https://www.how-to-portugal.com/energy/setting-up-utilities#documents - How do I sign a new electricity contract? If the meter is already connected, simply choose a supplier and submit the subscription. If it is disconnected, you must request reconnection from the grid operator, which may take time and require a technician visit. The contracted power defines how many appliances you can use simultaneously. source: https://www.how-to-portugal.com/energy/setting-up-utilities#new-contract - How do I activate natural gas? First confirm the address has a natural-gas network. Then locate the CUI on the previous bill or meter. The process is identical to electricity: choose a supplier, submit NIF, CUI, and IBAN, and wait for activation. source: https://www.how-to-portugal.com/energy/setting-up-utilities#gas - How do I change titleholder when moving house? When moving house, you can request a change of titleholder with the same supplier or take the opportunity to switch tariff. In both cases, record the meter reading on the move date. If you stop paying or do not process the change, the previous titleholder remains responsible for the bill until the registered move date. source: https://www.how-to-portugal.com/energy/setting-up-utilities#move-in - What about short stays or tourism? Household energy contracts require a NIF and permanent address. For short stays, tourism, or holiday rentals, energy should remain in the name of the property owner or unit manager. Do not open a household contract if you do not have permanent residence in Portugal. source: https://www.how-to-portugal.com/energy/setting-up-utilities#shortstay - Related Guides [### Energy in Portugal Sector overview.](/energy)[### Electricity and gas How the market and bill work.](/energy/electricity-gas)[### Best energy providers Ranking by tariff type.](/energy/providers)[### Address registration How to get an official address in Portugal.](/moving/address-registration) source: https://www.how-to-portugal.com/energy/setting-up-utilities#related-guides User question: "Can I contract energy without a NIF?" Answer: No. All household electricity and gas contracts require a Portuguese NIF. The NIF is the first document to obtain. Source: https://www.how-to-portugal.com/energy/setting-up-utilities#faq-can-i-contract-energy-without-a-nif User question: "What is the gas CUI?" Answer: The CUI (Código Único de Instalação) identifies the natural-gas installation at an address, just as the CPE identifies the electricity meter. Source: https://www.how-to-portugal.com/energy/setting-up-utilities#faq-what-is-the-gas-cui User question: "How long does activation take?" Answer: If the meter is already connected, activation can be immediate or on the next billing cycle. If disconnected, reconnection may take several working days and require a technician visit. Source: https://www.how-to-portugal.com/energy/setting-up-utilities#faq-how-long-does-activation-take User question: "Can I get an energy contract in English?" Answer: Most suppliers only issue contracts and bills in Portuguese. EDP Comercial, Iberdrola, Repsol, and MEO Energia indicate English support, but contractual documents may still be in Portuguese. Source: https://www.how-to-portugal.com/energy/setting-up-utilities#faq-can-i-get-an-energy-contract-in-english