wattsbar


TVA’s Nuclear Allegators

, director, Nuclear Safety Project

The Nuclear Regulatory Commission (NRC) receives reports about potential safety problems from plant workers, the public, members of the news media, and elected officials. The NRC calls these potential safety problems allegations, making the sources allegators. In the five years between 2012 and 2016, the NRC received 450 to 600 allegations each year. The majority of the allegations involve the nuclear power reactors licensed by the NRC. Read more >

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Watts Bar Lacks a Proper Safety Culture

, director, Nuclear Safety Project

The Nuclear Regulatory Commission (NRC) issued a Chilled Work Environment Letter to the Tennessee Valley Authority (TVA) on March 23, 2016, about safety culture problems at the Watts Bar nuclear plant. TVA promised to take steps to restore a proper safety culture at the plant.

Nearly 13 months later, has a proper safety culture been restored at Watts Bar? Read more >

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Watts Bar Hokey Pokey is Not Okey Dokey

, director, Nuclear Safety Project

Fission Stories #200

The Watts Bar Nuclear Plant near Spring City, Tennessee has two pressurized water reactors (PWRs) like that shown in Figure 1. Water flowing through the reactor core gets heated to over 500°F, but does not boil because pressure of over 2,000 pounds per square inch prevents it. The heated water flows through tubes inside the steam generators. Heat conducted through the thin metal walls of the tubes boils water surrounding the tubes. The steam flows through a turbine that spins a generator to make electricity. Read more >

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NRC Issues Operating License for Watts Bar Unit 2

, director, Nuclear Safety Project

The Nuclear Regulatory Commission (NRC) issued an operating license today to the Tennessee Valley Authority (TVA) for Watts Bar Unit 2. The Atomic Energy Commission, NRC’s predecessor, issued TVA the construction permit for Watts Bar Unit 2 on January 23, 1973. TVA has suspended construction on Unit 2 several times over the years—Watts Bar Unit 1 was completed and licensed by the NRC in February 1996. Read more >

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Atomic Speedometers

, director, Nuclear Safety Project

Fission Stories #196

Local, state and federal officials post limits on how fast people can drive their vehicles along roads under normal conditions. The posted speed limits are risk-informed because vary from road to road depending on risk factors such as congestion and access options. Read more >

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