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Exelon shuts down Limerick reactor for planned refueling

Exelon Corp. on Monday shut down its Limerick Generating Station Unit 1 in Montgomery County for a planned refueling outage. While the unit is offline, a third of the reactor's fuel is replaced.

Exelon Corp. on Monday shut down its Limerick Generating Station Unit 1 in Montgomery County for a planned refueling outage. While the unit is offline, a third of the reactor's fuel is replaced.

Refueling outages, which typically occur about every 18 or 24 months for a reactor, are scheduled for spring and fall when demand for electricity is lower. They are huge undertakings involving thousands of workers, who often conduct other scheduled maintenance work during the weeks when the reactor is offline.

Exelon said that Limerick Unit 2 will continue to generate power during the Unit 1 outage. Unit 1 marked its 30th year in operation in February.

amaykuth@phillynews.com

215-854-2947 @maykuth