About 95% of the gas that entered Portugal in 2025 arrived through the Sines terminal, with Nigeria, the United States and Russia as the main countries of origin. At the Liquefied Natural Gas terminal, 46 discharges of methane vessels were carried out and 7,546 tankers were supplied. Nigeria represented 50% of the discharge operations, the United States 43% and Russia the remaining 7%.
Sines received three methane vessels from Russia, the same number as in 2024, with the energy discharged of Russian origin remaining unchanged at 3.3 terawatt-hours. Portugal intends to end Russian LNG imports by early 2027, under European rules that determine the progressive elimination of gas purchases from Russia. There is a single company with a long-term contract to import Russian gas through Sines, the Spanish company Naturgy.
The remaining approximately 5% of the gas that entered Portugal arrived by pipeline, through the interconnections with the Spanish network in Campo Maior and Valença do Minho. In the report, ERSE concludes that in 2025 there was an overall improvement in the performance of the gas transmission and distribution networks, with a reduction in the number and duration of supply interruptions.
Approximately 0.7% of customer installations were affected by interruptions, corresponding to 10,861 out of a total of 1,567,872 customers connected to the network. In the transmission network, there were no interruptions at exit points for the sixth consecutive year. All distribution network operators met the standard regarding the average duration of interruptions, with the exception of Lisboagás, which did not meet the standard regarding the average number of interruptions.
