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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

Davis-Besse Repairs Increase in Cost and Duration

LCG, Oct. 7, 2002--Repairs underway at the Davis-Besse nuclear power plant in Ohio will require that the plant be out of service until early next year, and are expected to cost owner FirstEnergy more than $100 million above what was originally estimated.

The cost of installing a new reactor head, estimated at between $55 million and $75 million, will remain the same, according to the company. This year's work necessary to bring the plant online will likely increase in cost by $65 million, while next year's follow-up maintenance is seen as incurring $50 million more in expenses than previous estimates.

While the plant is out of service, FirstEnergy has a supply of energy to replace the nuclear plant's output, due to hedging. Of the repairs being performed, only the new reactor head will be capitalized. A leak of boric acid resulted in a hole within the protective reactor head.
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