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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

California ISO Suggests Market Enforcement Strategies

LCG, July 23, 2002-The California Independent System Operator, a not-for-profit company responsible for reliability in California's electricity transmission, has been discussing means by which to enforce market rules.

ISO documents released on Friday included unannounced testing of generators in order to ensure availability and insistence upon publishing market information.

Surprise testing would apply to those generators who sign contracts for providing reserve energy. The ISO may rescind "capacity payments" if generators are found to be unavailable.

The ISO also has recommended publishing schedules in order that market manipulation will be more difficult to hide and the ISO's under and over-scheduling problems might be limited.

The ISO's recommendations await stakeholder comments and will be sent to the ISO board of governors on Thursday for discussion.

The ISO will release an enforcement plan on August 12 and hold a stakeholder meeting regarding the plan on August 15. Ultimately the ISO hopes to have its recommendations sent to and approved by the Federal Energy Regulatory Commission by November 25, at which point the ISO will begin employing the new measures.

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