International Nuclear Event Scale
From 2001 through March 10, 2011, Cofrentes NPP made 25 unplanned shutdowns. It notified the Nuclear Safety Council (CSN, in Spanish) of 102 security events—three of these were Level 1 on the International Nuclear Event Scale (INES). The Cofrentes plant has notified an average of 10 reported events each year in the last decade.