Spain’s Renewable Energy Surpasses 55% in 2025 and Early 2026

Spain’s Renewable Energy Dominance Continues into 2026

In 2025, renewable energy sources comprised more than half of Spain’s energy mix, a trend that has carried on into January 2026, even as winter sets in. According to data from Red Eléctrica, the country’s national grid operator, renewables contributed 55.5 per cent to Spain’s overall energy generation last year.

Leading the charge, wind power represented the largest share at 21.6 per cent, surpassing all other sources, including nuclear and combined cycle gas plants. Following closely, solar photovoltaic (PV) energy accounted for 18.4 per cent of the total mix, ranking as the second major renewable source, although it placed third overall behind nuclear power, which delivered 19.1 per cent.

Renewables Hit Record Production

With a market share of 55.5 per cent, which rises to 56.6 per cent when factoring in self-consumption—likely from systems like rooftop solar—Spain achieved a significant milestone by producing over 150.8 terawatt-hours (TWh) of renewable energy in 2025, marking a historic peak. This achievement came even as electricity consumption grew by 2.7 per cent to reach 255,759 gigawatt-hours (GWh), despite previous limitations following a significant blackout in April.

Solid Start to 2026

The upward trend for renewable energy persisted into 2026, with January figures indicating a 55.7 per cent contribution from renewables to the energy mix, climbing to 56.1 per cent when self-consumption is included. Notably, national electricity demand also surged in January, increasing by 3.7 per cent from the previous year, totalling 23,778 GWh. Self-consumption installations contributed over 700 GWh of this total, equating to roughly 2.94 per cent.

In January, wind generation retained its position as the leading electricity source, accounting for an impressive 31.9 per cent of total production, which marked a 7 per cent rise to reach 8,087 GWh. Meanwhile, solar PV made up a smaller share at 9.2 per cent, coming in fifth place behind nuclear (20.7 per cent), combined cycle gas (16 per cent), and hydropower (12.9 per cent).

Additionally, January saw the incorporation of 797 GWh from energy storage technologies into the grid, enabling more effective use of Spain’s extensive renewable energy output.