Ascó Nuclear Power Plant is a nuclear power station at Ascó in Spain. It consists of two PWRs of 933 and 943 MWe.

An INES level 2 accident occurred on November 2007 at the Unit 1 reactor. The Spanish Nuclear Safety Council (CSN) was not advised of the leak until April 4. Although the leak happened in November, particles were not detected outdoors until March 2008.

CSN initially estimated that total radioactivity detected was about 235,000 becquerels. The council operating the plant later estimated that a maximum of 84.95 million becquerels of radioactivity were spilled. CSN announced it was changing the classification of the leak from Level 1 to Level 2 because of "inadequate control of radioactive material and of providing incomplete and deficient information to the controlling body." An investigation was opened and the director of the plant was fired.

Ascó Nuclear Power Plant
Official name	Central nuclear de Ascó
Country	Spain
Construction began	1971
Commission date	December 10, 1984 (1984-12-10)
Licence expiration	2023 (Asco 1) and 2025 (Asco 2)
Owner(s)	Endesa
Operator(s)	Asociación Nuclear Ascó-Vandellòs (ANAV) A.I.E. (ENDESA/ID)
Reactor information
Reactors operational	2 totaling 2060 MW
Power generation information
Annual generation	15,474 GW·h
Net generation	307,970 GW·h