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NRC Renews Operating Licenses for Constellation's Nuclear Reactors at Clinton and Dresden Facilities

LCG, December 16, 2025--The Nuclear Regulatory Commission (NRC) announced today that it has renewed the operating licenses of Constellation LLC’s Clinton Unit 1 in Clinton, Illinois, and Dresden Units 2 and 3, near Morris, Illinois, for an additional 20 years beyond the current expiration dates. The combined capacity of these three, Illinois-based nuclear units is 2,925 MW, and the operating license extension will enable the units to generate carbon-free power through about 2050.

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ERCOT Announces Organizational Changes to Promote Grid Reliability, Rapid Demand Growth, and Innovation

LCG, December 12, 2025--Today, the Electric Reliability Council of Texas, Inc. (ERCOT) announced strategic organizational changes designed to accelerate innovation, strengthen grid reliability, and support the unprecedented growth in the demand for electricity across Texas. To meet these objectives, ERCOT created two new organizations: Interconnection and Grid Analysis, and Enterprise Data and Artificial Intelligence (AI). The two organizations will formally launch in January 2026.

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Industry News

Reactor Company Applies for MOX Fuel Permit

LCG, February 27, 2003-Duke Energy has applied to install mixed oxide (MOX) fuel lead assemblies.

Mixed oxide fuel combines the uranium oxide normally used in reactors with roughly 5 percent plutonium oxide. European companies have used MOX fuel for over twenty years, in part to reduce weapons-grade plutonium stockpiles.

35 European reactors utilize MOX fuel, but in the United States some people are cautious about its use for safety reasons. Fission of MOX fuel, because of its plutonium content, may cause increased embrittlement of the reactor metal, and MOX fuel, until expended in the reactor, could still be used by terrorists.

Duke Energy has announced that it wants to use MOX fuel assemblies in either the McGuire or Catawba reactor starting in 2005. Four of the 193 fuel assemblies would be MOX.

Duke Energy began the regulatory process today as it sent in its preliminary application to the Nuclear Regulatory Commission.

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