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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

Utah Outage to Cost Scottish Power a Million a Day

LCG, Dec. 4, 2000--Scottish Power Plc said this morning that the 430 megawatt power plant in Hunter, Utah, belonging to its PacifiCorp subsidiary would be out of service for between four and six months to repair the windings in its generator.

The company said it have to buy power on the western U.S. wholesale market at unusually high prices to service customers through the winter, and said the "net cost impact" of the problem would be $1 million a day.

A short circuit in the inner core of the generator occurred a week ago and is thought to have been caused by a breakdown of the insulation on the wires that constitute the windings of the unit's rotor -- the part that is spun to generate electricity.

Winding insulation usually lasts forever, because it is not exposed to the elements and does not undergo any physical stress. The Hunter plant is less than 20 years old and was fully inspected last year. A Scottish Power spokesman said "This outage is an extremely rare occurrence."

The company said it would ask regulatory approval to recover the cost of its power purchases through increased rates to its customers.

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