maximum power output of 2700 thermal megawatts, or MWth (870 MWe). It has 2 steam generators, and 4 reactor cooling pumps. It is undergoing an upgrade to its safe shutdown system which already met NRC standards. During its refueling outage in October 2006, the operator installed a new pressurizer. Construction permit issued: December 11, 1970 Final safety analysis report filed: August 15, 1972 Full term operating licensing issued: September 26, 1975 Full power license: September 26, 1975 Initial criticality: January 17, 1975 Commercial operation: December 26, 1975 100% power: March 20, 1976 "Stretch power": June 25, 1979 Operating license extension requested: December 22, 1986 Operating license extension issued: January 12, 1988 Full term operating license expires: December 11, 2010 Operating license expires: July 31, 2015 Extended operating license expires: July 31, 2035 Unit 3 Millstone 3 is a Westinghouse plant that started operating in 1986, and has a maximum power output of 3650 MWth (1260 MWe). In the summer of 2008, the NRC approved a power uprate for Unit 3 that increased its electrical output 7.006% to 3650 MWth (1230 MWe). The increase took effect by the end of 2008. Construction permit issued: August 9, 1974 Initial criticality: January 23, 1986 Commercial operation: April 23, 1986 Operating license expires: November 25, 2025 Extended operating license expires: November 25, 2045 Electricity Production Safety and environmental events In December 1977, two hydrogen explosions occurred at the plant. The second explosion injured one man, who required hospitalization. In October 1990, operator error during a routine test caused a shutdown of unit 2. In September 1991, twenty reactor operators failed required licensing examinations. The shortfall of licensed operators necessitated a shutdown of unit 1 until March 1992. In 1995 the U.S. Nuclear Regulatory Commission began a safety investigation relating to refueling procedures at Millstone unit 1, based on information provided by George Galatis, a senior nuclear engineer. On February 26, 1996, a leaking valve forced the shutdown of units 1 and 2. Multiple equipment failures were found. Time magazine featured the plant on its cover, calling its operator a "rogue utility", and the Nuclear Regulatory Commission singled out Millstone for additional attention. Also in 1996, the plant released one gallon per hour of hydrazine into Long Island Sound. The plant's operators were convicted in 1999 for falsifying environmental records related to the hydrazine release. Following the Time article and the subsequent shutdown of all