(See the illustration of the water circulation in Arrocampo) The walls of thermic separation[clarification needed] (pantallas de separación térmica in Spanish) (PST) are 11 km long and 8 m high.

[2][3][4][5] Spanish secretary of State for the EU Jorge Toledo Albiñana has said work will start regardless of Portugal's complaints, and uranium bars that will remain radioactive for the next 300 years will be stored on site.

[6] In May 2017 the Portuguese Parliament approved the Ecologist Party "The Greens" motion to request the closure of Spain's Almaraz nuclear plant during the next Iberian summit.

[7] On the 28 January 2016, the Spanish Nuclear Safety Council inspectors found serious failings in the water pump engines at the plant, which have potential operational issues of the cooling system and could pose a serious risk to local people and the environment in Spain and in neighboring Portugal.

[10] Miguel Arias Cañete responded that the CSN "carried out an assessment and reached the conclusion that the Almaraz power plant is operated safely.