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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 Issues Ruling on Midwest ISO Transmission Request Processing

LCG, Jan. 31, 2003--A complaint by Tenaska Inc. over a rejected offer to purchase long-term transmission rights from the Midwest Independent System Operator should be considered again under a revised framework, the Federal Energy Regultory Commission (FERC) ruled yesterday.

The Midwest ISO, which said that opting to allow a purchase of short-term transmission rights by other buyers instead was done on a first-come, first-served basis, controls grid access over an area that includes 15 states, and part of Canada. The position of Tenaska was backed by Dynegy Inc., Reliant Resources and Public Service Enterprise Group Inc.

The transmission access in question is around the Michigan-Ontario border. The FERC ruling stated, "This order benefits customers by providing certainty to Midwest ISO's customers concerning the processing of long-term firm transmission service requests." The ISO was directed to change its tariff within 30 days, and adopt a new method of responding to requests.
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