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Nuclear update: US output falls with LaSalle 2 scram

Total U.S. nuclear plant availability ticked lower early Jan. 24 to 95.39%, dropping from 96.92% on Jan. 23 but still remaining above the 93.45% reported on the same day last year.

Pulling down total production was the loss of Exelon Corp.'s LaSalle 2 in Illinois. The unit was manually shut early Jan. 23 "due to a Stator Water Cooling runback signal and a Turbine Bypass Valve opening," according to a report filed with the U.S. Nuclear Regulatory Commission. The cause of the event is still under investigation. Prior to being idled, the unit was pegged at 99%.

In addition, Southern Co.'s Hatch 1 plant in Georgia saw output fall from 60% on Jan. 23 to 38% early Jan. 24, and Unit 2 of the Peach Bottom power plant in Pennsylvania, which is jointly owned by Exelon Corp. and Public Service Enterprise Group Inc., was curtailed from 100% power Jan. 23 to 90% early Jan. 24.

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For details of U.S. nuclear power plant operations, visit our Nuclear Availability and Status and Outage Pages.