Your electricity bill,
audited in 1 minute.
Upload a PDF bill. We compare, line by line, against every fixed-price tariff in Portugal. No forms, no email, no provider influence.
0.1478 €
0.1524 €
0.1556 €
0.1598 €
Three steps,
transparent result.
Our evaluation is completely unbiased — the ranking of results has no influence from any provider.
Upload your bill
Upload the PDF of your bill. AI extracts the data automatically. After extraction, the file is deleted — we only keep the consumption.
Line-by-line audit
We cross-reference your real consumption with every fixed-price tariff in Portugal, regulated and liberalized. We analyze contracted power, time period and fixed rate.
Transparent result
See the exact cost with each provider, the annual savings and the methodology. If you switch, we handle everything — no supply interruption.
The market, today.
The electricity market in Portugal: what you need to know
In Portugal, any domestic consumer can freely choose their electricity provider in the liberalized market — and switch whenever they find a more advantageous option, at no cost and without penalties.
The market is divided into two segments: the regulated market, managed by SU Eletricidade with tariffs set by ERSE, and the liberalized market, where dozens of retailers compete with their own tariffs. In practice, the liberalized market frequently offers more competitive conditions — but comparison requires attention, because the price per kWh is not the only relevant factor.
An electricity bill in Portugal comprises several components: the energy cost (price per kWh × consumption), the contracted power (daily fixed cost, calculated in kVA), the Audiovisual Tax and taxes such as VAT and ISP. To find the cheapest electricity provider for your case, you need to calculate the total cost — not just compare the price per kWh in isolation.
The choice of time-of-use regime also impacts the bill: with a flat tariff you pay the same price all day; with a dual-rate tariff, consumption during off-peak hours (usually night and weekends) is cheaper, while peak hours are more expensive. If you have flexibility to shift consumption — washing machine, appliances or electric vehicle charging — the dual-rate tariff can generate significant savings.
The Poupa na Energia comparator analyzes your real electricity bill and calculates the total annual cost with each active retailer, taking all these factors into account. Ranking is done exclusively by cost, without any commercial influence. Tariff data is imported directly from ERSE and updated daily.
Practical guides
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Quanto custa por ano cada potência, de 1,15 a 20,7 kVA, como saber de quanta precisas e como a mudar. Com os preços de 113 ofertas reais.
Tarifa social de eletricidade: quem tem direito e quanto poupas
Quem tem direito à tarifa social em 2026, quanto desconta, como se pede e o que fazer se o desconto não aparece na fatura.
Como mudar de fornecedor de luz, passo a passo
Mudar de fornecedor de luz é grátis e não corta a eletricidade. O que precisas, quanto demora, fidelizações e dívidas antigas.
We watch the market.
You save silently.
Coming soon: we'll monitor your bills every month. If there's a better tariff for your consumption profile, we handle the switch automatically.
- Automatic bill reading via email or provider portal
- We only switch if savings exceed €50/year, net
- Alert before any switch — you can approve or veto
- Cancel anytime, no commitment
Everything you need to know about comparing and switching providers
Questions about the liberalized market, tariffs and how switching electricity provider works in Portugal.
Upload the PDF of your electricity bill. Our technology automatically extracts your consumption data — contracted power, time period and kWh consumption — and compares line by line with every active fixed-price tariff in Portugal, both regulated and liberalized. In about a minute you see the real cost with each provider, the estimated annual savings and the calculation methodology. No email required, no account created, and the PDF file is deleted after analysis.
There is no single answer — the cheapest electricity provider depends on your consumption profile: how many kWh you consume per month, contracted power (kVA) and whether you consume more during the day or night (flat, dual-rate or tri-rate tariff). The comparator calculates the real total cost for your consumption, not just the price per kWh.
Yes, without any interruption. Switching electricity providers in Portugal is regulated by ERSE and is fully transparent: the distributor (E-REDES) stays the same — only the retailer changes. The process takes up to 3 weeks (usually less), is completely free and can be done at any time without penalties. The physical distribution grid is not affected.
In most cases, yes. The regulated market (SU Eletricidade) serves as a reference. The liberalized market has tariffs significantly below that value — including fixed-price options (protected from MIBEL variations) and spot market-indexed options. The right choice depends on your risk profile and consumption. Our comparator calculates the total cost of the fixed-price options for your case. Indexed ones stay out because their price changes every day; you can see them on the market page.
With a dual-rate tariff you pay different prices depending on the time of day: "off-peak hours" (usually night and weekends) are cheaper, "peak hours" are more expensive. It pays off if you have flexibility to shift consumption — washing machine, appliances, electric vehicle charging — to off-peak periods. If your consumption is concentrated during the day, the flat tariff may be more advantageous. The comparator calculates both options with your real consumption.
Yes. Poupa na Energia is currently a personal project with no revenue: it takes no commissions, ads or partnerships from any electricity retailer in Portugal — including EDP, Galp, Endesa, Iberdrola, Goldenergy or Repsol. If that changes, it will be disclosed on each recommendation. Results are ranked exclusively by total price calculated for your consumption profile. Tariff data is imported directly from ERSE and updated daily.
No. The bill file is deleted right after extracting consumption data; if the analysis never runs, it is deleted automatically within 24 hours. We keep only what the comparison needs: consumption, power, the bill amounts and the CPE code, used if you ask us to switch. We never keep your name, NIF, IBAN or customer number. Data processing follows GDPR rules.
One minute.
One bill.
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No account needed. No email required. If you decide to switch providers, we help step by step.
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