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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

New York and New England ISO's Cease Pursuit of Regional Merger

LCG, Nov. 22, 2002--Talks between ISO New England Inc. (ISO-NE) and the New York ISO (NYISO) will no longer be focused on forming a combined regional transmission organization, according to an announcement issued today by the two organizations.

The grid administrators for the respective regions will continue to use their recent discussions as the basis for minimizing "seams" issues, but feel that with the onset of the Federal Energy Regulatory Commission's standard market design (SMD) approaching, they will be less vulnerable to potential litigation by remaining separate.

"Today, ISO-NE and the NYISO have reluctantly withdrawn their NERTO proposal with FERC. This decision was made after careful consideration of all the comments filed on November 8th," as well as the "change in schedule for issuance of the Standard Market Design (SMD) final rule," said Gordon van Welie, president and CEO of ISO New England Inc. A filing by the two ISO's was made with the FERC on August 28th concerning the creation of a combined regional transmission organization.
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