Generator Issues Force Tennessee Nuclear Plant Offline

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Researched by Industrial Info Resources (Sugar Land, Texas)--One of the Tennessee Valley Authority's (TVA) (Knoxville, Tennessee) nuclear power units was forced offline this morning because of issues in the generator. During surveillance testing of the pressure channel, engineers discovered a malfunction in the main feedwater regulating valve, which forced the removal of the 1,221-megawatt (MW) Unit 1 at the Sequoyah nuclear plant in Soddy-Daisy, Tennessee. Engineers had to manually trip the unit by lowering the steam levels in the generator. Unit 2 was unaffected during this event. "We are still working towards resolving the issue and hope to resume power by this weekend," a plant official said.

The plant is 18 miles north of Chattanooga, Tennessee, on the banks of the Chickamauga Reservoir. It consists of two nuclear reactor units capable of producing 2,442 MW. Unit 1 began operations in 1981, and Unit 2 began operations the following year. Sequoyah was the most efficient nuclear generating station over a three year period from 2000-02, producing power at 1.14 cents per kilowatt-hour.

TVA is the nation's largest public power company with 33,000 MW of generating capacity. TVA provides power to about 8.7 million Tennessee Valley residents.

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