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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

Conversion of Coal-fired Plant Near Completion

LCG, Apr. 21, 2003--The shutdown of the coal-burning part of the Noblesville power plant in Indiana in late February will be followed in June by the start-up of three new gas-fired combustion turbines, according to Cinergy Corp.

The plant was rated at 90 megawatts previously, and with the operation of the gas turbines, will have a nominal capacity of 300 megawatts. The turbines from the coal plant will be run by steam created by the new turbines. Emissions will be reduced by 94 percent, PSI Energy Inc., the Cinergy subsidiary responsible for the conversion, said.

The same firm that designed the original NOblesville plant, Sargent & Lundy, has also done the engineering work for the current installation. It is thought that the facility will produce power for about half the year, for peak demand. The increased efficiency and reduced emissions may aid PSI Energy in reaching a final agreement with the Environmental Protection Agency over emission limits to accompany capacity expansion. Hamilton County will benefit from the new turbines, as its reserve margin has been as low as 1 percent in the past few years.
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