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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

Supreme Court Rules EPA Can Overrule States

LCG, Jan. 21, 2004--A dispute before the Supreme Court over construction of a diesel power plant that had been approved by the state of Alaska, but that was blocked by the Environmental Protection Agency, was decided in favor of the federal agency as part of its enforcement of the Clean Air Act.

The Ninth U.S. Circuit Court of Appeals had previously ruled that the decision of the EPA to prevent the Teck Cominco mining company from adding a new diesel generator at the Red Dog Mine was within its "ultimate authority" in such regulatory actions governing emissions. Writing for the majority, Justice Ruth Bader Ginsburg said that the agency holds "supervisory authority over the reasonableness of state permitting."

The narrow majority (the decision was 5-4) found that the EPA had not issued a ruling beyond what the scope of the law covers. Justice Anthony Kennedy, in the dissenting opinion, wrote that he believed the majority's ruling was in conflict with the Clean Air Act, administrative law and "principles that preserve the integrity of states in our federal system."
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