Indeed there are a lot of windmills in Spain, especially in this part of Spain. In 2015, Spain was the fifth largest generator of wind power in the world. On a few blustery days, wind power makes up more than 50 percent of the power the country uses. Wind power even enables the province of Galicia to produce more renewable energy than its own power needs demand. Spain has promised the European Union to achieve 20 percent of all its energy needs by 2020.
The country seemed well on the way to this target a decade ago, through a combination of wind, solar and hydroelectric production. However, since the conservative government of Mariano Rajoy’s Popular Party took power in 2011, green power production has plateaued. Subsidies for clean energy were cut; the government introduced a "sun tax" which penalizes individual private installations of solar panels which might reduce demand for the output sold by commercial power companies.
Government solicitude for the stranded costs of legacy power companies acts as an impediment to clean energy all over the world. David Roberts has recently explored why cheaper batteries are going to blow away the old monopoly electric company profit model despite their political power in the U.S. -- and as soon as 2020.