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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 Buys Out Partner in New England Plants

LCG, Oct. 23, 2000--Calpine Corp. said Friday it would buy from Dartmouth, Mass.-based Energy Management Inc. the interest it does not already own in three recently-built New England power plants. Calpine will also get a joint marketing venture.

Calpine said it would pay $100 million in cash and $45 million in stock for the assets, as well as assume about $220 million of project financing. The power plants are located in Dighton, Mass., Tiverton, R.I. and Rumford, Maine, and represent a total of 700 megawatts of capacity.

Calpine senior vice president Bob Alff said "The Dighton, Tiverton, and Rumford assets are among the first merchant power plants in the New England market, and acquiring the remaining interest in these projects illustrates the implementation of our New England market strategy."

In other New England activity, Calpine is in the final stages of construction of the 500 megawatt Westbrook Energy Center, in Westbrook, Maine, and will shortly begin construction of the 500 megawatt Towantic Energy Center, in Oxford, Conn. The company also owns a 37 percent interest in the 160 megawatt Androscoggin Energy Center, located in Jay, Maine, as part of its recently completed acquisition of Northbrook, Ill.-based SkyGen Energy.

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