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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

117 Megawatts Goes On-line at New Illinois Plant

LCG, Aug. 4, 2000--The Mid-American Interconnected Network has 117 megawatts more electricity in its inventory for the hot and sultry dog days of summer, thanks to a second unit of Ameren Energy Inc.s new Gibson City, Ill., which has been connected to MAINs grid.

MAIN is one of 10 regional councils of the North American Electric Reliability Council, an industry group that oversees standards and operating protocols on the nations electrical transmission network. MAINs territory includes all of Illinois and parts of Wisconsin, Missouri, and Michigan.

The first unit of the Gibson City went on line June 30. According to Ameren officials, the entire plant was completed on schedule, from ground breaking to generation.

MAIN has another 4,096 megawatts of new generation scheduled to come on line by the summer of next year, including two 640 megawatt Duke Energy Corp. plants in Illinois. In addition, Reliant Energy Inc. began construction in mid-June on an 870 megawatt plant in Aurora, Ill.

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