14 GW of solar capacity for self-consumption in 2025, lifting cumulative capacity to 9. 3 GW, as residential and commercial installations declined while industrial and off-grid segments showed greater resilience, according to data from the Spanish Photovoltaic. Spain installed 1. Spain is also one of the European countries with the most hours of sunshine. From pv. Renewables now account for 66% of Spain's installed power capacity In 2024, solar PV recorded its best year ever: it generated 44,520 GWh, representing 17% of the country's total electricity production According to data from Red Eléctrica, solar photovoltaic (PV), with a total capacity of 32,043. Solar photovoltaic continues to be the technology with the highest growth, with an installed capacity of over 41,500 MW, a 26. At 31 December 2025, solar photovoltaic represented 29. 9% of the national installed capacity.