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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 Rules to Preserve Charges Between Transmission Systems

LCG, April 1, 2003The Federal Energy Regulatory Commission decided grid operators can charge fees to transfer electricity from one operators transmission lines to another through their own.

The case surfaced as PJM Interconnection and Midwest Independent System Operator applied to join their respective service territories. Midwest ISO serves some Southern States as well as several Midwest states including parts of Illinois, Indiana, Iowa, Kentucky, Maryland, Michigan, Minnesota, Ohio, and Wisconsin. PJM serves mid-Atlantic states.

While some utilities have claimed that such "through-and-out" charges are unfair and hamper competition, FERC ruled that the two transmission operators will be allowed to continue charging fees to send electricity through their transmission lines from another operators lines.

FERC Judge Herbert Grossman made the ruling yesterday, although FERC commissioners can revise Grossmans ruling. The judge also noted that if FERC throws out such fees, a new fee should be instated in such a way as to not allow utilities to shift costs to ratepayers.

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