The Hungarian Atomic Energy Authority issued the licence for the operation of unit 2 with uprated power on 23 June 2009. The power of unit 2 was uprated to 108% thus the nominal electrical capacity of the unit has reached 500 MW. Unit 4 has been operating with uprated power since September 2007 while unit 1 since September 2008.
The Hungarian Atomic Energy Authority (HAEA) reviewed the program of the Paks NPP – submitted on 17 November 2008 – concerning the extension of its designed lifetime. According to the Nuclear Safety Regulations the preparation of the program is the preconsidition of the licensing of the operation beyond the designed lifetime. The enclosure of the program included several documentation to demonstrate either the suitability of the systems and system components for extended operation or the process of ensuring it.