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X-energy Commences First Irradiation Tests of Advanced TRISO-X Nuclear Fuel at Idaho National Laboratory

LCG, November 6, 2025--X-energy Reactor Company, LLC, (X-energy) and the U.S. Office of Nuclear Energy today announced the start of confirmatory irradiation testing at Idaho National Laboratory (INL) to qualify X-energy’s proprietary TRISO-X fuel pebbles for commercial use in the Xe-100 Small Modular Reactor (SMR). (TRISO stands for TRi-structural ISOtropic). This is the first time that TRISO-X fuel pebbles will undergo irradiation testing in a U.S. lab, which is a critical step in meeting requirements set forth by the U.S. Nuclear Regulatory Commission (NRC) for the commercial deployment of advanced reactors that will use the fuel.

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NextEra Energy and Google Collaborate on Accelerating Nuclear Power Deployment

LCG, October 28, 2025--NextEra Energy and Google yesterday announced two agreements that will help meet growing electricity demand from artificial intelligence (AI) with clean, reliable, 24/7 nuclear power and strengthen the nation's nuclear leadership. First, Google signed a new, 25-year agreement for power generated at the Duane Arnold Energy Center, Iowa's only nuclear power facility. The 601-MW boiling water reactor unit was shut down in 2020 and is expected to commence operations by the first quarter of 2029, pending regulatory approvals to restart the plant.

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Industry News

Trigen Loses Oklahoma City Case in U.S. High Court

LCG, Oct. 30, 2001--Cogeneration developer Trigen Corp. finally lost its antitrust lawsuit against Oklahoma Gas & Electric Co. yesterday when the U.S. Supreme Court denied its latest appeal in the five-year-old case.

In 1996, Trigen-Oklahoma City Energy Corp. sought to develop a cogeneration plant that would provide heating, cooling and electricity to several buildings in downtown Oklahoma City. OG&E had no objection to the heating and cooling, but the utility owned a monopoly on the electricity.

In a 1998 trial in federal district court in Oklahoma City, Trigen complained about OG&E's monopoly status and the utility questioned how it could be considered a monopoly in Trigen's business -- heating and cooling services -- while OG&E's product is electricity. Furthermore, OG&E argued that its actions resulted in lower costs for the buildings in question.

Trigen won that round and OG&E was ordered to pay $30 million. The judge in the case later reduced Trigen's award to $20.6 million.

OG&E appealed, and a three-member federal appeals court panel overturned the verdict, finding no violation of the antitrust laws by the utility. The panel found that the "heart of Trigen's complaint is that OG&E's rates are too low and that Trigen had to lower its own rates or lose business." Trigen's appeal of that ruling to the full nine-member 10th Circuit Court was denied.

On July 30 of this year, Trigen petitioned the U.S. Supreme Court for review of the case. Yesterday, the high court declined to review the case.

"We are very pleased that the Supreme Court of the United States acted so promptly and saw this case as we have; that is, as a case without merit," said Paul Renfrow, director of public affairs for the utility's parent holding company, OGE Energy Corp. "We have been confident this would be the outcome all along."

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