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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

Calpine to Provide 3,000 Megawatts to Shell Energy

LCG, July 19, 2001Calpine Corp. and Shell Energy Service Co. said yesterday they had arranged a deal under which Calpine will sell up to 3,000 megawatts of Texas power to the oil company subsidiary.

Shell Energy will market the power in the Texas retail market, which is to begin opening up to competition beginning July 31 when 5 percent of the state's retail electric customers are given the opportunity to select alternative energy providers.

The companies declined to disclose financial details of the five-year deal which is scheduled to begin next January 1.

Calpine, which already has 2,700 megawatts of installed generation in Texas, will add another 935 megawatts at two plants scheduled to begin commercial operations by the end of this year, a company spokeswoman said.

Calpine, which has been active in the Texas generation market, said the Shell deal means it has sold 85 percent of the power it can produce in the Lone Star State.

The Texas customer choice program was originally scheduled to begin on June 1, but computer problems at the state's independent system operator delayed the start. The Texas retail power market is slated to be fully open by January 1 of next year.

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