Nine Mile Point Nuclear Station Unit 1 automatically shut down at 9:15 ET this morning when a steam valve closed during routine testing.

Nine Mile Point Nuclear Station Unit 1 automatically shut down at 9:15 ET this morning when a steam valve closed during routine testing. Operators responded appropriately, and all systems functioned as designed. Nine Mile Point's two reactors are designed to shutdown safely if potential equipment issues are identified. The shutdown does not present any risk to public health or safety.

Technicians will repair the valve and perform comprehensive tests before returning Unit 1 to service. Nine Mile Point Unit 2 continues to operate at full power. The station notified the Nuclear Regulatory Commission and state officials as per procedure.

Nine Mile Point Nuclear Station is located seven miles northeast of Oswego and 50 miles north of Syracuse. The station can produce more than 1,937 megawatts of carbon-free electricity - enough to power more than two million typical homes.


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Exelon Corporation (NYSE: EXC) is the nation's leading competitive energy provider, with 2014 revenues of approximately $27.4 billion. Headquartered in Chicago, Exelon does business in 48 states, the District of Columbia and Canada. Exelon is one of the largest competitive U.S. power generators, with approximately 32,000 megawatts of owned capacity comprising one of the nation's cleanest and lowest-cost power generation fleets. The company's Constellation business unit provides energy products and services to more than 2.5 million residential, public sector and business customers, including more than two-thirds of the Fortune 100. Exelon's utilities deliver electricity and natural gas to more than 7.8 million customers in central Maryland (BGE), northern Illinois (ComEd) and southeastern Pennsylvania (PECO).

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