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Limerick Generating Station

Limerick Generating Station

Limerick Generating Station is a nuclear energy plant located in southeastern Pennsylvania, about 20 miles northwest of Philadelphia in Montgomery County.

Limerick is built on a 600-acre site and draws its cooling water from the Schuylkill River.  Units 1 and 2 received their operating licenses from the U.S. Nuclear Regulatory Commission (NRC) in 1984 and 1989, respectively.

Both of Limerick’s units are boiling water reactors designed by General Electric.  Together, Limerick Unit 1 and Unit 2 produce 2,345 net megawatts (MW) of electricity - enough energy to power more than two million average American homes.

Committed to Safety

Limerick Generating Station, like all U.S. nuclear energy facilities, is based on a “defense-in-depth” design, which means there are redundant layers of safety.  There are multiple layers of safety systems to provide water to the reactor core.  These safety systems, and their backup safety systems, are powered by multiple and redundant power sources.  Nuclear energy plants are built with multiple physical barriers, including thick, steel-reinforced concrete walls around the reactor to contain radioactive materials.  

Our employees are personally committed to safety.  They are highly-skilled workers and continually receive training to make our safe work practices even safer.   We have a culture of continuous learning and implement lessons learned from operating experience to continue to operate safe nuclear energy facilities.  Each employee has 100 percent accountability.  We welcome strict, daily oversight by the Nuclear Regulatory Commission (NRC).  We work with the NRC to ensure that all regulations are complied with -  and exceeded.

Learn more about Limerick's safe operations.

Supporting the Local Economy

Limerick Generating Station is a valuable resource to the surrounding community.  In addition to the electric reliability and environmental benefits that the plant provides, Limerick Generating Station provides direct and indirect economic benefits to its host community and Pennsylvania, including over $200 million in economic contributions annually to Pennsylvania.

Continental Economics, Inc. prepared a report that analyzes the economic, system reliability and environmental benefits of Limerick Generating Station, based on 2010 data.  

Economic Benefits of Limerick Generating Station [PDF, 46 KB]Limerick Generating Station is a valuable resource to the surrounding community, providing economic, environmental and electric reliability benefits.  Read a summary of the benefits of Limerick to the local community. PDFPDFs require software like the Adobe Acrobat Reader to be viewed properly.

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A Report by Jonathan A. Lesser, PhD [PDF, 623 KB]A report prepared by Jonathan A. Lesser, PhD - The Economic Benefits of Exelon Nuclear's Limerick Generating Station. PDFPDFs require software like the Adobe Acrobat Reader to be viewed properly.

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Generating More Low-Carbon Electricity

As part of Exelon 2020, Exelon Nuclear launched a series of planned power uprates across the company's nuclear fleet that will generate additional generating capacity without turning a spade of earth. Uprate projects improve the efficiency and increase electricity output of a nuclear generating unit through upgrades to plant equipment. 

Emergency Planning

Limerick employs a sophisticated emergency response plan to protect public health and safety that is approved by the NRC and the Commonwealth of Pennsylvania. The emergency plan includes coordination with local counties, municipalities and school districts.

Emergency Preparedness [PDF, 64 KB]See Limerick's Emergency Preparedness fact sheet for more information. PDFPDFs require software like the Adobe Acrobat Reader to be viewed properly.

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Plant Security

Our first priority is the health and safety of the public and our employees.  Limerick Generating Station has a well-armed and highly-trained paramilitary security force that is routinely drilled and tested.  We continue to meet or exceed all security measures mandated by the NRC.  

Plant Security at Limerick [PDF | 77 KB]See Limerick's Plant Security fact sheet for more information. PDFPDFs require software like the Adobe Acrobat Reader to be viewed properly.

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Community Involvement

Limerick aims to be a good neighbor and is very active in the local community.  Limerick and its employees give generously to the community by providing contributions to local organizations such as:

  • Limerick Township Emergency Responders and Parks and Recreation
  • Linfield Fire Department
  • Pottstown Senior Center
  • Meals on Wheels 
  • Foundation for Pottstown Education
  • Perkiomen Watershed Conservancy
  • Schuylkill River Heritage Area
  • Pottstown School District
  • North Coventry Food Pantry

Site Vice President: Rick Libra

Plant Manager: David Lewis

3146 Sanatoga Rd.
Pottstown, Pennsylvania

  • Number of units: 2
  • Total site net generation: 2,311 MW
  • 2014 net generation: 19.0 million MWh
  • 2014 capacity factor: 94.0%
  • Customers served: 2 million homes
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Limerick Generating Station