Constellation Says U.S. Nuclear Regulatory Commission Approves License Amendment Request For Limerick Clean Energy Center's Digital Modernization Project

This upgrade is part of the company's $5.1 billion investment across Pennsylvania to preserve nearly 5,100 existing MWs and add 1,200 more to further stabilize energy prices at a critical time

Constellation (CEG: Nasdaq) today announced the U.S. Nuclear Regulatory Commission (NRC) has approved a License Amendment Request for the Limerick Clean Energy Center's Digital Modernization Project, a first‑of‑its‑kind upgrade across major control and protection systems that will enhance reliability, diagnostic capability and cyber resilience at one of the nation's top-rated nuclear facilities. This approval comes at a critical time as Constellation works to preserve and expand nuclear generation in Pennsylvania.

The Digital Modernization Project replaces select analog instrumentation and control equipment with state‑of‑the‑art digital platforms designed to improve equipment monitoring, provide a broader range of automation and support additional operational flexibility with enhanced reliability. These upgrades will help Limerick deliver around‑the‑clock, carbon‑free electricity to power homes, businesses and new data‑driven industries that are creating jobs in the region. This is the first large-scale demonstration of a digital safety system upgrade at an operating U.S. nuclear plant, supported by the U.S. Department of Energy's (DOE's) Light Water Reactor Sustainability Program.