preço eficiente
Published 8 November 2026, 19:36
preço eficiente (the calculated "fair" price per litre)
The price of a litre of petrol or diesel that ERSE calculates every week from international prices for refined fuel, sea freight and the euro-dollar exchange rate. It is not the price at the pump but a benchmark: what a litre costs before taxes and the filling station's margin.
Where you come across it. Comparing prices at filling stations; arguments over whether a rise in fuel prices is justified.
According to an ERSE study covering January 2023 to July 2026, the average price people actually paid, after discounts, was below the calculated price throughout; that is why the regulator decided not to propose a cap on margins.
Official website: erse.pt/consumidores-de-energia/combustiveis/precos