Electricity in Portugal for Expats

Portugal fully liberalised its retail electricity market in 2006. Today, more than 20 licensed suppliers compete for residential customers, ranging from the historic incumbent EDP to digital-first challengers such as Goldenergy and Iberdrola.

A regulated "last-resort" tariff (PVPC) still exists but is typically €100–200/year more expensive than the best market offers for an average household. Switching is free and fully protected by law — your supply is never interrupted.

The market regulator ERSE publishes all licensed suppliers and their tariff filings. Prices are structured around two components: energy consumed (€/kWh) and contracted power (€/day or €/month).

• NIF (Número de Identificação Fiscal) — your Portuguese tax number. Every supplier requires this. Get it at any Finanças office or online via Portal das Finanças.
• ID document — Portuguese residency card (Título de Residência) is universally accepted. Passport acceptance varies by supplier — not all accept it without a residency card; see the table below.
• IBAN for direct debit — Portuguese IBANs (PT50…) are accepted everywhere. SEPA IBANs (non-PT EU) are accepted by some suppliers only.
• CPE code — the unique reference for your electricity connection point, found on any existing bill or on the fusebox label (e.g. PT0002…).

If you are new to Portugal and do not yet have a residency card, prioritise suppliers that explicitly accept passports — Iberdrola and Endesa are the most expat-friendly.

The table below summarises expat compatibility across the six largest residential suppliers in Portugal based on publicly available sign-up requirements (April 2026). Always verify directly with the supplier before signing, as policies can change. See the live market overview.

1. Step 1 — Get your current bill. You need your CPE code and current tariff details. The CPE starts with PT0002 and is printed on every bill.
2. Step 2 — Compare offers. Use PoupaNaEnergia to upload your bill and see a ranked list of all available tariffs for your exact consumption profile, including the expat filter to show only passport-friendly suppliers.
3. Step 3 — Enable the expat filter. On the results page, toggle "Expat-friendly only" to filter for suppliers that accept your documents and IBAN.
4. Step 4 — Start the switch. Sign up directly with your chosen supplier. They handle the rest — notifying the grid operator and your old supplier.

The switch takes 5–15 business days and never interrupts your electricity supply. Portuguese law prohibits any service interruption during a supplier change.

• Regulated tariff lock-in — if you are currently on the PVPC (tarifa regulada), you are almost certainly paying more than necessary. Switching to a market tariff is the single biggest saving available.
• Fidelity clauses — some promotional offers include a 12 or 24-month commitment with early-exit penalties. Always read the "período de fidelização" section before signing.
• Direct debit requirement — most competitive tariffs require direct debit (débito direto). If your bank does not support SEPA direct debit, check whether the supplier accepts credit card payment, which is less common.
• Bi-hourly vs simple tariffs — bi-hourly (bi-horário or vazio/fora de vazio) tariffs charge less overnight and on weekends. They save money only if you can shift usage (e.g. EV charging, dishwasher at night). For most expat households, a simple flat tariff is easier and equally competitive.

A Portuguese electricity bill has several line items that are not always obvious:

• Energia ativa — the actual electricity you consumed, charged per kWh at your tariff rate.
• Potência contratada — a daily or monthly standing charge for your contracted power level (kVA). This is set when you sign up and determines the maximum load your installation can draw simultaneously.
• TAR (Tarifa de Acesso às Redes) — regulated network access charges paid to the grid operator. These are the same regardless of supplier.
• IEC / DGEG / Audiovisual — excise duty on energy (Imposto Especial sobre o Consumo de Energia), DGEG levy, and the national audiovisual contribution. Small fixed amounts, identical across all suppliers.
• IVA — VAT at 6% on energy and network charges, and 23% on other fees and the subscription itself.

When comparing tariffs, focus on the estimated annual cost rather than the per-kWh price alone — the standing charge can vary significantly and makes a flat-rate comparison misleading.