(1988) Cofrentes Nuclear Power Plant (1984) Vandellòs II (1988) Ascó II (1986) Thermal plants Iberdrola also owns some conventional thermal plants, mostly coal-fired, although it can also use fuel oil and gas oil. Two of these plants are: C. T. de Velilla, in Velilla del Río Carrión (Palencia), with two units, one of 148 MW and one of 350 MW, in operation since 1964 and 1984, respectively. C. T. de Lada, in Langreo (Asturias), which had as many as four units, but now only has one of 350 MW, put into operation in 1981. Renewable energy Headquartered in Valencia (Paseo de la Alameda), the Iberdrola Renovables subsidiary had been listed on the stock exchange from December 2007 until July 2011, when Iberdrola decided to re-acquire the minority shares and integrate it into the parent company. In Q1 2021, Iberdrola reported having operating installed capacity of 55,396 MW producing a total of 42,951 GWh of electricity in the year. Its clean energy capacity increased by 13.3% to 79%. Iberdola reported to have increased its investments in renewables with 29% and has 8,700 MW of renewable energy under construction. It plans to build 78,000 MW until 2025. Major assets Renewable Energy Operations Centres CORE (Toledo, Portland and Glasgow) Iberdrola's Renewable Energy Operations Centres (CORE for its initials in Spanish) in Toledo, Portland and Glasgow control all Iberdrola's renewables facilities and its related substations worldwide. Iberdrola's first CORE was set up in Toledo in 2003, with the other two coming on stream since. The Whitelee Wind Farm (Glasgow, Scotland) With initial installed capacity of 322 MW, it is currently being enlarged to 539 MW. The complex is situated south of Glasgow and covers an area of 55 square kilometres, the same as that occupied by Glasgow itself. The El Andévalo wind farm (Huelva, Spain) The El Andévalo wind farm, which was commissioned in 2010, is the largest wind power facility in Spain and continental Europe. It has installed capacity of 292 MW and is located between the towns of El Almendro, Alosno, San Silvestre and Puebla de Guzmán in the south of Huelva province. To transfer the power generated by these wind farms and connect them to the transmission grid, Iberdrola has built a new 120-kilometre line between Spain and Portugal, which means this complex occupies a key strategic position in the power interconnections between the two countries. Peñascal Wind Power Project (Texas,