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Audubon Today
By the People, for the People
Limerick Nuclear Plant Approved for Digital Modernization
Upgrade to enhance reliability, diagnostics and cybersecurity at top-rated facility
Published on Feb. 11, 2026
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The U.S. Nuclear Regulatory Commission has approved Constellation Energy's License Amendment Request for a digital modernization project at the Limerick Nuclear Power Plant in Pennsylvania. The upgrade will replace analog instrumentation and control equipment with state-of-the-art digital platforms to improve monitoring, automation and operational flexibility.
Why it matters
This approval comes at a critical time as Constellation works to preserve and expand nuclear generation in Pennsylvania. The digital upgrades are designed to enhance the reliability, diagnostic capability and cyber resilience of one of the nation's top-rated nuclear facilities.
The details
The Digital Modernization Project will be implemented in phases during upcoming refueling outages to ensure safety and operational continuity. The upgrades will replace select analog equipment with digital platforms to improve equipment monitoring, provide more automation, and support additional operational flexibility with enhanced reliability.
- On January 6, Constellation Energy announced the NRC approval.
- The physical installation of the digital control rooms is planned to occur during upcoming refueling outages.
The players
Constellation Energy
An energy company that operates the Limerick Nuclear Power Plant.
U.S. Nuclear Regulatory Commission (NRC)
The federal agency that regulates and oversees the civilian use of nuclear materials.
Limerick Nuclear Power Plant
A nuclear power plant located along the Schuylkill River in Montgomery County, Pennsylvania.
What’s next
The Digital Modernization Project installation will be done in phases and carefully managed to ensure safety and operational continuity.
The takeaway
This digital upgrade at the Limerick Nuclear Power Plant is a significant step in enhancing the reliability, diagnostics and cybersecurity of one of Pennsylvania's top-rated nuclear facilities, helping to preserve and expand nuclear generation in the state.
