Wind energy remained Spain's largest source of electricity in 2025 and continues to be one of the country's key industrial sectors, supporting more than 37,000 jobs and a complete domestic supply chain. However, the industry says the pace of new installations remains too slow to meet national energy transition targets and is calling for faster permitting, increased repowering, expanded electricity networks and more energy storage.
Spain has 32.9 GW of installed wind capacity, making it Europe's third-largest wind market after Germany and close behind the United Kingdom. During 2025, the country added 1.42 GW of new wind capacity, well below the 5.8 GW annual rate required to meet the National Energy and Climate Plan (PNIEC) targets.
Wind generated 59.4 TWh of electricity in 2025, supplying 21.8% of Spain's electricity demand and accounting for 24% of the generation mix. Castilla y León remained the leading region for installed capacity and electricity generation, followed by Aragón, Castilla-La Mancha, Galicia and Andalucía.
Siemens Gamesa, GE Vernova, Vestas, Nordex-Acciona Wind Power and Enercon are the largest turbine suppliers by installed capacity. Iberdrola, Acciona Energía, Endesa–Enel Green Power, Naturgy and EDPR are the country's leading wind developers.
Spain has 22,433 wind turbines across 1,454 wind farms in 860 municipalities and 274 manufacturing facilities operating in 16 of its 17 autonomous communities. The country retains a complete wind supply chain and is the world's fourth-largest exporter of wind turbines, after China, Denmark and Germany.
The sector employs more than 37,000 people, an increase of 4.7% compared with the previous year. Galicia has the largest wind workforce, followed by the Basque Country and Andalucía.
According to the Spanish Wind Energy Association, wind power reduced wholesale electricity prices by an average of €14/MWh in 2025, lowering average market prices by 18% and delivering estimated savings of €3.9 billion. Wind also contributed to grid stability through balancing and system support services. Despite wind curtailment reaching 1% of scheduled generation, captured prices remained close to 90% of the average wholesale market price.
The association identifies several priorities to support future growth, including faster project permitting through greater regulatory certainty, expanding electricity networks and storage, accelerating electrification, increasing repowering, advancing offshore wind and strengthening public engagement.
At the end of 2025, Spain had 32.5 GW of wind projects in the permitting process. In Galicia alone, around 3.4 GW with construction authorisation remain delayed by legal proceedings.
Repowering is also expected to play a larger role. Around 9.8 GW of Spain's wind capacity is more than 20 years old. During 2025, seven repowered wind farms reduced the number of turbines from 147 to 20 while maintaining or increasing capacity. A further 46 repowering projects, representing 1,132 MW, are under development.
