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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

FERC Readjusts Standard Market Design

LCG, April 29, 2003The Federal Energy Regulatory Commission edited its plans to homogenize the countrys electricity transmission system.

FERC issued clarifications yesterday, giving more authority to local and state officials after southern states complained that the Federal government had no right to assume the level of control suggested.

The Standard Market Design comes as an attempt to streamline the electricity transmission process between regions under different authorities, eliminating rate inconsistencies and minimizing losses due to bottlenecks and other inefficiencies.

The commission has decided to allow phased-in implementation of its plans and waive implementation requirements if they are found to be so costly they do not pass a cost-benefit analysis in a specific region.

RTOs and Independent System Operators will also be the only transmission operators to appear in the revised market plan, as FERC has removed the concept of the independent transmission provider.

FERC plans to consider feedback from state authorities, utilities, and generator owners in order to compile reasonable timetables for the market plan, which divides the country into transmission areas operated by RTOs, or Regional Transmission Organizations.

FERC also noted that it will not insist upon jurisdiction regarding wholesale electricity transmission rates. The commission also yielded to pressure by giving state commissions the right to dole out firm transmission rights based upon current use instead of selling rights to the highest bidder.

The plan was initially released last year, and FERC expects to begin implementation within the year.

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