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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

NRG's El Segundo Energy Center Project Commences Operations

LCG, August 9, 2013--NRG Energy, Inc. (NRG) recently announced that commercial operation has commenced at its natural gas?fueled, combined-cycle generating facility at the El Segundo Energy Center, which is located near Los Angeles, California. Southern California Edison will obtain the entire output from the facility under a 10-year power purchase agreement (PPA) executed in 2008.

The new, 550-MW El Segundo Energy Center project supports the retirement of a less efficient, 335-MW steam boiler unit built at the site in 1964 that relied on once-through ocean water for cooling. The new facility is an air-cooled, combined-cycle facility that uses grey water and reduces the use of potable water at the site by nearly 90 percent. The new facility employs a fast-start design that delivers more than half of its generating capacity in less than 10 minutes and the balance in less than 1 hour. The rapid response capabilities are especially important in California, with its ever-growing use of intermittent, renewable resources.

"Our modernization efforts at El Segundo ideally complement California?s growth of intermittent renewable energy sources, such as wind and solar, in support of the State?s renewable portfolio standard while maintaining its tradition of being a good neighbor to the surrounding coastal communities," said the President of NRG Energy?s West Region. "In addition, we have worked with the community to improve the visual aesthetics of the site by incorporating native landscaping, installing a new picturesque sea wall, and affording improved coastal views with the lower profile of the plant."

The new generating capacity is a welcome addition this summer, given Southern California Edison's recent decision to not reactivate and to permanently retire Units 2 and 3 at its San Onofre Nuclear Generating Station (SONGS).

NRG purchased El Segundo Generating Station in the spring of 1998 as part of the California electric industry restructuring. The station was originally built in the 1950s by Southern California Edison.
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