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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 Biomass Plants' Viability Uncertain

LCG, December 23, 2002--Biomass plants in California's smoggy Central Valley, which have received state funding to assist with higher costs relative to other renewable power sources, could close within six months due to the state's unprecedented budget deficit.

Some of the plants, which require labor-intensive preparation of waste from agricultural sources, had previously closed in the 1990's, but then started up again when subsidies amounting to $30 million were approved by the state for three years, starting in 2000. The grants were viewed by legislators who approved them as a way to reduce air pollution in the Central Valley more cost-effectively than could be achieved by other means. Planning officials with the San Joaquin Valley Air Pollution Control District say that for $1,400, the biomass plants can reduce particulates by a ton, whereas $5,710 might be incurred elsewhere to achieve the same effect. Without the biomass plants, field waste is burned at the farms where it is generated, resulting in 95 percent more soot, produced by 100 millions tons of waste each year.

Plants like Delano Energy may be able to continue operating, by virtue of their owners having signed contracts with a utility, in this case San Diego Gas and Electric. At other plants, like Madera Power in Firebaugh and Dinuba Energy in Tulare county, the uncertainty associated with California's projected $30 billion deficit has meant that lenders are unwilling to step in unless the plants are operating under 15- to 20-year contracts. Speaking to the Sacramento Bee, Sarah Reyes, D-Fresno, said, "Biomass is important not only for air quality, but for energy production." However, because of the deficit, she noted, "there's not going to be an opportunity for the state to subsidize them."

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