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Oklo and Siemens Energy Sign Agreement to Accelerate Power Conversion System for New SMR in Idaho

LCG, November 19, 2025--Oklo Inc. and Siemens Energy announced today that the parties have signed a binding contract for the design and delivery of the power conversion system for Oklo’s Aurora-INL (Idaho National Laboratory) nuclear small modular reactor (SMR). The agreement authorizes Siemens Energy to begin engineering and design work to expedite procurement of long-lead components and to initiate the manufacturing process for the power conversion system. Oklo’s expertise in advanced fission technology will be combined with Siemens Energy’s extensive industry experience with steam turbine and generator systems, with the ultimate goal of generating carbon-free, reliable electricity.

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NERC's New Winter Reliability Assessment Raises Concerns for Elevated Risk of Insufficient Supplies to Meet Demand in Extreme Operating Conditions

LCG, November 19, 2025--NERC yesterday released its 2025–2026 Winter Reliability Assessment (WRA), which concludes "much of North America is again at an elevated risk of having insufficient energy supplies to meet demand in extreme operating conditions." The WRA does state that resources are adequate for normal winter peak demand, but extended, wide-area cold snaps will be challenging.

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Industry News

ComEd Refuels Dresden Unit 2 in 18 Days

LCG, Oct. 4, 2000Commonwealth Edison Co. crowed yesterday that its Nuclear Generation Group had completed a "record 17-day refueling outage" at the company's Dresden Unit 3 nuclear power plant located on the outskirts of Morris, Ill.

The company was fudging the outage took 17 days, 23 hours and 55 minutes but what will Oliver D. Kingsley Jr. accomplish next? Not long ago, any outage at a ComEd nuclear plant was measured in years, not days.

The refueling outage at Dresden Unit 3 was a lot more than restoking the reactor with a few bundles of fuel rods. About 2,500 ComEd and contract workers swarmed over the plant, replacing 20 condenser bellows assemblies, modernizing the electro-hydraulic control system, upgrading moisture separator vanes and in general reconditioning plant systems and equipment so they were in better condition than when the unit was taken off-line on September 15.

Kingsley, who joined ComEd in 1997 as president of its new Nuclear Generation Group, said "I could not be more proud of the exceptional performance shown during this outage. Dresden has set the standard for outages and moved us one step closer to reaching our vision of being the most effective operator of nuclear power plants."

The refueling outage at Dresden Unit 3 was the first of five planned for this autumn at ComEd nuclear plants. We imagine Kingsley, a former U.S. Navy submarine commander, will have his engineers ready to answer bells.

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