Waterford Nuclear Generating Station
|Waterford Nuclear Generating Station|
|Commission date||September 24, 1985|
|Licence expiration||December 18, 2024|
|Reactors operational||1 x 1,218 MW|
|Reactor type(s)||pressurized water reactor|
|Reactor supplier(s)||Combustion Engineering|
|Annual generation||8,949 GW·h|
|As of 2010-08-02|
This plant has one Combustion Engineering two-loop pressurized water reactor. The plant produces 1,218 megawatts of electricity since the site's last refuel in October 2009. It has a dry ambient pressure containment building.
On August 28, 2005, Waterford shut down due to Hurricane Katrina approaching and declared an unusual event (the least-serious of a four-level emergency classification scale). Shortly after Katrina, Waterford restarted and now is in normal operation.
Entergy is planning to replace the unit's two steam generators as well as the reactor vessel closure head and control element drive mechanisms during a refueling outage in 2012. The project is estimated to cost $511 million. The steam generators are being replaced due to normal wear and tear on the equipment. Waterford 3 is one of the last units in its class to replace its steam generators. Entergy petitioned the Louisiana Public Service Commission on June 27, 2008, for approval of the project. The project is expected to go from mid-October to early January.
The Nuclear Regulatory Commission defines two emergency planning zones around nuclear power plants: a plume exposure pathway zone with a radius of 10 miles (16 km), concerned primarily with exposure to, and inhalation of, airborne radioactive contamination, and an ingestion pathway zone of about 50 miles (80 km), concerned primarily with ingestion of food and liquid contaminated by radioactivity.
The 2010 U.S. population within 10 miles (16 km) of Waterford was 75,538, an increase of 7.4 percent in a decade, according to an analysis of U.S. Census data for msnbc.com. The 2010 U.S. population within 50 miles (80 km) was 1,969,431, a decrease of 0.8 percent since 2000. Cities within 50 miles include New Orleans (33 miles to city center).
The Nuclear Regulatory Commission's estimate of the risk each year of an earthquake intense enough to cause core damage to the reactor at Waterford was 1 in 50,000, according to an NRC study published in August 2010.
- Waterford on US Nuclear Power Plants List
- NRC Page on Waterford 3 shutdown prior to Hurricane Katrina
- Entergy press release on steam generator replacement project
- Bill Dedman, Nuclear neighbors: Population rises near US reactors, msnbc.com, April 14, 2011 http://www.msnbc.msn.com/id/42555888/ns/us_news-life/ Accessed May 1, 2011.
- Bill Dedman, "What are the odds? US nuke plants ranked by quake risk," msnbc.com, March 17, 2011 http://www.msnbc.msn.com/id/42103936/ Accessed April 19, 2011.
- U.S. Department of Energy web page for Waterford
- NRC's web page on Waterford
- Entergy Nuclear's information page on Waterford 3
- NEI Fact Sheet Nuclear Energy in Louisiana