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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

Southern Announces Another Joint Development Project for New Nuclear Reactors

LCG, March 16, 2006--Southern Company (Southern) today announced that it has executed an agreement with Duke Power (Duke) to jointly pursue the development of a new nuclear power plant at a site in Cherokee County, South Carolina. Duke will be the developer and plant operator, and Southern will be a co-owner of the plant.

Duke had previously announced plans to pursue the development of a new nuclear plant, but the site had not been identified. Now Duke plans to proceed to prepare an application to the Nuclear Regulatory Commission (NRC) for a combined construction and operating license (COL) for two Westinghouse AP1000 reactors to be built at the Cherokee County site. The COL is scheduled to be submitted to the NRC by early 2008.

Last week Southern announced another joint proposal with Tennessee Valley Authority (TVA) whereby the two companies would jointly pursue the construction of two new nuclear reactors at TVA's Bellefonte plant site near Scottsboro, Alabama. The Bellefonte plant would also incorporate the AP1000 design, which includes a generating capacity of approximately 1,100 MW. Similarly, Southern has selected the AP1000 for two new reactors at its existing Plant Vogtle, located in Georgia.

The AP1000 reactor incorporates passive safety features that rely upon natural forces. The NRC approved the Design Certification for the AP1000 standard nuclear plant design on December 30, 2005. Since receiving NRC approval, the AP1000 is leading other reactor vendors and has also been selected by Progress Carolinas, SCANA and Santee Cooper as the basis for additional COL applications to construct new nuclear reactors.

Duke continues to evaluate the preparation of early site permit (ESP) applications for locations in Oconee County, S.C., and Davie County, North Carolina.
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