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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

Duke Energy Carolinas Files IRP

LCG, September 6, 2018--Duke Energy Carolinas excluded new nuclear construction in its recently filed Integrated Resource Plan (IRP), which includes its 15-year plan for new power generation.

For many years, expansion of nuclear generation has been a normal part of Duke's solution to meeting long-term electric supply needs. However, new nuclear reactors are not part of the new IRP. However, new nuclear projects remain a possibility for the future. Duke continues to monitor developments in advanced nuclear reactors and small modular reactors (SMRs).

Duke does plan to pursue receiving license extensions for its existing nuclear assets, which total 7,400 MW of capacity. The Nuclear Regulatory Commission (NRC) has historically issued 40-year licenses for the initial reactor operating period, with 20-year extensions available to units that qualify. All of Duke's nuclear units have received the first, 20-year extensions, which allow for a 60-year life. The next step a number of companies, including Duke, are considering with the NRC is to extend the licenses for another 20 years, or a total of 80 years. If the existing carbon-free nuclear plants can receive an additional 20 years of operations, then there will be significant benefits with respect to limiting carbon emissions.
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