Exelon Nuclear to Replace Sirens Around Three Mile Island Generating Station

New sirens to include battery back-up power  

LONDONDERRY TOWNSHIP, PA  (Nov.19, 2009)

Exelon Nuclear will begin a project next week to 

replace all 96 emergency sirens in the 10 miles around Three Mile Island Generating Station with sirens that 

include battery back up.  The first phase of the project will have contractors visit and identify certain features 

of each existing siren.   

The initial phase of this project will take approximately 60 days.  Installation of the new sirens will begin in 

2011.  The new and old sirens will run concurrently for a 4-month period to ensure they operate properly.  

Completion of the project and removal of the existing sirens is scheduled for 2012. 

To view the Exelon Press Release, open pdf: