Three Mile Island Off Line Due to Turbine Generator Shutdown 

 Three Mile Island Unit 1 went off line Sunday, September 19 at 11:25 p.m. when the plant's turbine generator shut down. 

 

LONDONDERRY TWP, PA -  Three Mile Island Unit 1 went off line Sunday, September 19 at 11:25 p.m. when the plant’s turbine generator shut down.  The plant responded as expected.  Plant technical experts are working to determine the cause of the turbine generator shut down.

The shutdown resulted in a steam release that may have been audible to nearby residents.  Neither the turbine generator shutdown nor the subsequent steam release posed a threat to the health or safety of the public or plant workers.

Three Mile Island Unit 1 generates 852 megawatts of carbon free electricity - enough electricity for about 800,000 homes.  Electric customers were not affected by the plant being off line.

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About Exelon

Exelon Corporation is one of the nation’s largest electric utilities with more than $17 billion in annual revenues. The company has one of the industry’s largest portfolios of electricity generation capacity, with a nationwide reach and strong positions in the Midwest and Mid-Atlantic. Exelon distributes electricity to approximately 5.4 million customers in northern Illinois and southeastern Pennsylvania and natural gas to approximately 486,000 customers in the Philadelphia area. Exelon is headquartered in Chicago and trades on the NYSE under the ticker EXC.

Contacts

Ralph DeSantis Exelon Nuclear Communications
717.948.8930
pr_2010_0920_Nuclear_TMI Off Line