Portugal's renewables meet 68% of power demand in 2025
- Özcan Berk Atakan
- 4 days ago
- 2 min read
In 2025, Portugal reached a major milestone in its energy transition. Renewable energy sources supplied 68% of the country’s total electricity demand, confirming Portugal’s position as one of Europe’s leading renewable energy markets.
This achievement reflects years of consistent investment in clean generation, grid stability, and long-term decarbonisation policies. Despite rising electricity consumption compared to previous years, renewables maintained a dominant share in the national power mix.
A Balanced Renewable Energy Mix
According to data from Redes Energéticas Nacionais (REN), renewable electricity generation in 2025 reached approximately 37 TWh. The contribution came from a well-diversified portfolio:
Hydropower remained the backbone of renewable generation, benefiting from favourable hydrological conditions.
Wind energy continued to play a central role, supported by Portugal’s strong onshore wind fleet.
Solar PV showed sustained growth, reinforcing its importance in daytime demand coverage.
Biomass provided stable baseload support within the renewable mix.
Indicative shares of electricity demand were roughly:
Hydropower: 26–27%
Wind: 24–25%
Solar: 11–13%
Biomass: ~5%
Slightly Lower Than 2024, Still Structurally Strong
While the 68% share is marginally below the exceptionally high levels recorded in 2024 (around 72%), it still represents a structurally strong outcome. Lower hydropower output compared to the previous year and higher overall demand were the main factors behind the modest decline.
Importantly, renewable generation remained resilient without compromising system reliability or security of supply.
What This Means for Portugal and Europe
Portugal’s performance demonstrates how a diversified renewable mix can reliably supply the majority of national electricity demand. It also highlights the country’s readiness to integrate higher shares of variable generation, such as wind and solar, while maintaining grid stability.
As Portugal advances toward its 2030 climate and energy targets, further expansion of solar PV, energy storage, and grid flexibility solutions is expected to push renewable penetration even higher.
Portugal’s 2025 results reinforce a clear message: high renewable shares are not only achievable but sustainable with the right planning, infrastructure, and policy framework.
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