Non-renewable sources accounted for 11 percent of the supply, with imports covering the remaining 28 percent.

Hydropower remains the largest source

National electricity demand rose by 3.8 percent year-on-year in May, or by 3.6 percent when adjusted for temperature effects, Renewables Now reports.

So far, renewables have met 73 percent of Portugal’s electricity consumption in 2026, according to data by Redes Energéticas Nacionais.

Hydropower led the demand, supplying 32 percent, followed by wind at 27 percent, solar at 10 percent and biomass at 5 percent.