MILLSTONE NUCLEAR POWER PLANT

'Millstone' Nuclear Power Station units 2 and 3 are located at a former quarry in Waterford, Connecticut. The site covers about 500 acres (2 km²). The Millstone complex was built by a consortium of utilities. Both units use Niantic Bay (which is connected to the Long Island Sound and Atlantic Ocean) as a source of coolant water.
Although located in Waterford, Millstone is most clearly seen from downtown Niantic. It is visible from the Niantic Boardwalk area and from the Niantic River Bridge, and to anyone who travels on Amtrak through the area, as the train line goes right along the Niantic Bay and past the plant.
Millstone 1 was a General Electric boiling water reactor, producing 660 MWe, shut down in November 1995 before being permanently closed in July 1998.
Units 2 and 3, both pressurized water reactors (one from Westinghouse and one from Combustion Engineering), were sold to Dominion by Northeast Utilities in 2000 and continue to operate.
Millstone 2 is a Combustion Engineering plant built in the 1970's, and has a maximum power output of 2700 MWth (870 MWe). It has 2 steam generators, and 4 reactor cooling pumps (RCP). It is currently undergoing an upgrade to its safe shutdown system which already met NRC standards. During its refueling outage in October 2006, it installed a new pressurizer.
Millstone 3 is a Westinghouse plant that started operating in 1986, and has a maximum power output of 3411 MWth (1150 MWe).
Millstone was placed on the NRC Watchlist in 1996, when it was revealed that employees who had raised nuclear safety issues had been retaliated against by members of plant management [1] [2]. The three reactors remained shutdown for over one year until both technical and safety culture issues were addressed.

Contents

Licensing History & Milestones

Unit 1

Unit 2

Unit 3

External links

Licensing History & Milestones

Unit 1

Construction Permit Issued: May 19, 1966
Final Safety Analysis Report (FSAR) Filed: November 1, 1968
Provisional Operating License Issued: October 7, 1970
Full Term Operating License Issued: October 31, 1986
Full Power License: October 7, 1970
Initial Criticality: October 26, 1970
Synchronized to the Grid: November 1970
Commercial Operation: December 28, 1970
100% Power: January 6, 1971
Permanently Ceased Operations: July 21, 1998

Unit 2

Construction Permit Issued: December 11, 1970
Final Safety Analysis Report (FSAR) Filed: August 15, 1972
Full Term Operating Licensing Issued: September 26, 1975
Full Power License: September 26, 1975
Initial Criticality: October 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

Unit 3

Construction Permit Issued: August 9, 1974
Initial Criticality: January 23, 1986
Commercial Operation: April 23, 1986
Operating License Expires: November 25, 2025

External links

★ Dominion's nuclear page

★ DoE Page

★ NukeWorker