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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 Plans 765 Megawatts for Wisconsin

LCG, Aug. 11, 2000--Calpine Corp. is negotiating to build a $500 million, 765 megawatt power plant in Edgerton, Wisc., the Wisconsin State Journal reported this morning. If permits and approvals are received, the facility would be built next to an industrial park in Rock County.

Calpine officials were in Edgerton this week meeting with city leaders, the paper said. Meetings are planned over the next two months to gauge community response to the proposed plant.

"Edgerton is our first choice," said Mike Maley, Calpines vice president for business development, citing nearby transmission lines, natural gas lines and water resources. While some residents dont want a power plant in their back yards, the proposal has support among city officials.

"I think we have to understand both the positives and negatives," said city administrator Ramona Flanigan. Generating power year-round, the plant would provide 30 full-time jobs, she said. And Edgerton would receive up to $750,000 a year in state shared revenue from taxes paid by the plant. That represents half of the $1.4 million in city taxes that Edgerton collects each year, she said.

Having a power plant in the community could also bring industry to Edgerton, with reliable electricity assured. "And certainly were going to market that" if the plant is built, Flanigan said.

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