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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

Calpine Begins Building Another California Plant;On its Way to Owning 12,000 In-state Megawatts

LCG, Aug. 24, 2001--Calpine Corp. said yesterday that is has begun construction on its 750 megawatt Pastoria Energy Center 30 miles south of Bakersfield, Calif. at the southern end of California's Central Valley.

Calpine said the natural gas-fueled, combined-cycle facility will be complete by summer of 2003. As many as 800 workers will build the plant, which will have an operating staff of between 30 and 35 employees.

"Pastoria is the latest in a series of Calpine projects intended to provide near- and long-term solutions to the power crunch in the West," Jake Rudisill, a Calpine senior vice president. "We've achieved several milestones this summer and we are extremely pleased to be able to point to yet another."

Calpine pointed to the commissioning in July of the Sutter Energy Center near Sacramento and the Los Medanos Energy Center as evidence that its projects are bearing fruit. Los Medanos is the first new major power plant built in the San Francisco Bay Area in more than 30 years.

The company said it has 2,400 megawatts of generation on-line in California, 2.030 megawatts under construction and almost 3,300 megawatts under development. Calpine says it will have in operation 12,000 megawatts of generation in California.

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