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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

PJM Submits Shipment Reliability Report

LCG, August 14, 2002-PJM Interconnection, responsible for reliability in the mid-Atlantic states, is developing methods to prevent inconsistencies between scheduled and delivered electricity and has submitted its report to federal regulators.

Last month PJM found that price signals were affected by misappropriated electricity, causing higher power prices. Energy companies had sent as much as 3,000 MW capacity by way of a western transmission line although none had been scheduled for the line. This inconsistency caused a $70 price gap between western and southern electricity in the region.

The names of the involved companies have not been released by PJM, but the grid operator has altered its market rules and is developing the Locational Marginal Pricing System, or LMP.

Until LMP is in place, which would put a premium on electricity sent to areas with generation or transmission limitations, PJM will use the rule changes it instated in July.

Since the discovery of the scheduled-delivered energy discrepancy, electricity sent between Mid-Atlantic and Midwest areas will have prices assigned to it at the boundary between the two regions' transmission control areas.

Those companies involved in sending electricity by way of unscheduled routes will not be prosecuted, according to PJM market monitoring unit manager Joseph Bowring.

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