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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

NRC Accepts Two Applications for New AREVA Nuclear Reactors

LCG, December 17, 2008--The Nuclear Regulatory Commission NRC announced Monday that it has accepted for review two combined operating license (COL) applications from Unistar and AmerenUE that incorporate AREVA's U.S. Evolutionary Power Reactor (EPR) design. The EPR is a pressurized water reactor, with a nominal electric output of approximately 1,600 MW.

UniStar Nuclear Operating Services (Unistar) submitted an application on September 30 to construct and operate an EPR at Constellation's existing Nine Mile Point nuclear power plant in New York, approximately six miles northeast of Oswego. The existing facility includes two reactors with a total capacity of 1,756 MW. In 2007 UniStar Nuclear Energy was formed as a strategic joint venture between Constellation Energy and the EDF Group, which owns and operates 58 nuclear reactors in France.

AmerenUE submitted an application to the NRC on July 28 to build a nuclear reactor at its Callaway Plant in Missouri. The existing Callaway Plant consists of a single reactor that has a net generating capacity of 1,126 MW and began service December 1984. The site is located about twenty-five miles northeast of Jefferson City and was initially developed with the idea of adding a second unit in the future. In 2007, AmerenUE announced that the company had signed an agreement with UniStar Nuclear Energy to help prepare a COLA.

AREVA filed its application to certify the U.S. EPR design on December 11, 2007, and in February the NRC accepted the application for review. The NRC will conduct a technical review and will issue a Safety Evaluation Report after all technical and safety questions are addressed. The NRC may then certify the design with an agency rulemaking. The NRC's Office of New Reactors expects the review work will continue at least into 2011.
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