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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

NRC Accepts Two Applications for New AREVA Nuclear Reactors

LCG, December 17, 2008--The Nuclear Regulatory Commission NRC announced Monday that it has accepted for review two combined operating license (COL) applications from Unistar and AmerenUE that incorporate AREVA's U.S. Evolutionary Power Reactor (EPR) design. The EPR is a pressurized water reactor, with a nominal electric output of approximately 1,600 MW.

UniStar Nuclear Operating Services (Unistar) submitted an application on September 30 to construct and operate an EPR at Constellation's existing Nine Mile Point nuclear power plant in New York, approximately six miles northeast of Oswego. The existing facility includes two reactors with a total capacity of 1,756 MW. In 2007 UniStar Nuclear Energy was formed as a strategic joint venture between Constellation Energy and the EDF Group, which owns and operates 58 nuclear reactors in France.

AmerenUE submitted an application to the NRC on July 28 to build a nuclear reactor at its Callaway Plant in Missouri. The existing Callaway Plant consists of a single reactor that has a net generating capacity of 1,126 MW and began service December 1984. The site is located about twenty-five miles northeast of Jefferson City and was initially developed with the idea of adding a second unit in the future. In 2007, AmerenUE announced that the company had signed an agreement with UniStar Nuclear Energy to help prepare a COLA.

AREVA filed its application to certify the U.S. EPR design on December 11, 2007, and in February the NRC accepted the application for review. The NRC will conduct a technical review and will issue a Safety Evaluation Report after all technical and safety questions are addressed. The NRC may then certify the design with an agency rulemaking. The NRC's Office of New Reactors expects the review work will continue at least into 2011.
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