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The Browns Ferry Nuclear Power Plant is located on the Tennessee River near Decatur and Athens , Alabama , on the north side ( Right Bank ) of Wheeler Lake . The plant is named after a ferry that operated at the site until the middle of the 20th century. The site has three Boiling Water Reactor (BWR) nuclear generating units and is owned entirely by the Tennessee Valley Authority . UNIT ONE Unit One is a 1,065 MWe BWR built by General Electric which originally came online on December 20 1973 , and is licensed to operate through December 20 2033 . However, Unit One was shut down for a year after a fire in 1975 caused major damage to the unit. The unit was subsequently repaired and operated from 1976 through 1985, when all three Browns Ferry units were shut down for operational and management issues. Units Two and Three were restarted in 1991 and 1995, respectively. Starting in 2002, TVA undertook to restore Unit One to operational status, spending 2007 , a leaky hydraulic control pipe in the turbine hall burst, spilling about 600 gallons of non-radioactive fluid, and the newly restarted reactor was temporarily powered down. Reactor power-up and tests resumed on 27 May and the unit started supplying power to the Electricity Supply Grid on 2 June 2007 , reaching full power on 8 June . The Browns Ferry restart will pay for itself in five years. {Link without Title} Unit One can generate 1,155 MW of electricity, and TVA plan an uprate to 1280 MWe for this and the other two reactors. Unit One fire penetration at a power plant in Nova Scotia (subsequently removed and replaced with Firestop Mortar ).]] The March 22 1975 fire started when a worker using a candle to search for air leaks accidentally set a temporary cable seal on fire. At Browns Ferry Nuclear Power Plant , foamed plastic covered on both sides with two coats of a flame retardant paint was used as a Firestop . The fire spread from the temporary seal into the foamed plastic, causing significant damage to the reactor control cabling in the station. From NRC IE BULLETIN NO. - 75-04A : The fire started in the cable spreading room at a Cable penetration through the wall between the cable spreading room and the reactor building for Unit 1. A slight differential pressure is maintained (by design) across this wall, with the higher pressure being on the cable spreading room side. The penetration seal originally present had been breached to install additional cables required by a design modification. Site personnel were resealing the penetration after cable installation and were checking the airflow through a temporary seal with a candle flame prior to installing the permanent sealing material. The temporary sealing material was highly combustible, and caught fire. Efforts were made by the workers to extinguish the fire at its origin, but they apparently did not recognize that the fire, under the influence of the draft through the penetration, was spreading on the reactor building side of the wall. The extent of the fire in the cable spreading room was limited to a few feet from the penetration; however, the presence of the fire on the other side of the wall from the point of ignition was not recognized until significant damage to cables related to the control of Units 1 and 2 had occurred. This later resulted in the Nuclear Regulatory Commission making significant additions to the standards for fire protection through Appendix R. According to the Nuclear Information And Resource Service , the newly restarted Unit One does not comply with these standards. Unit Three was not affected by the accident. This event was pivotal not just for Firestopping in the nuclear field, but also in commercial and industrial Construction . While the nuclear field went to installations of Silicone foam, a wider array of firestops became prevalent in non-nuclear construction. UNIT TWO Unit Two is a 1,113 MWe BWR built by General Electric which originally came online on August 2 1974 , and is licensed to operate through June 28 2034 . Unit Two generated 8,911,261 Megawatthours of electricity in 2003, achieving a capacity factor of 94.1%. Unit Two was temporarily shutdown on August 16, 2007 because the cooling water drawn from the Tennessee River was too hot. The water had been heated by a heatwave across the southeastern U.S. and the heated cooling water discharge from upstream plants. UNIT THREE Unit Three is a 1,113 MWe BWR built by General Electric which originally came online on August 18 1976 , and is licensed to operate through July 2 , 2036 . Unit Three generated 9,260,078 Megawatthours , achieving a capacity factor of 99%. EXTERNAL LINKS
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