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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

Highest Demand of the Year (So Far) Expected in California Today

LCG, July 9, 2002--The California Independent System Operator is predicting that demand across California will peak around 4:00 PM today, the highest level of demand experienced yet during 2002, while approximately 2,200 megawatts of generating capacity went off-line over a 24-hour period.

The ISO-predicted peak load of 40,402 megawatts applies to the ISO's control area, which no longer includes the Sacramento Municipal Utility District. Availability of power imports are not expected to be plentiful, based on high temperatures throughout the Western states.

Power consumers are asked to conserve through Thursday. Although director of the ISO's grid operations, Jim McIntosh stated "California is almost entirely dependent on power plants internal to the control area today," it appears that a Stage 1 electrical emergency can be avoided. A Stage 1 emergency occurs when the power reserve margin falls below 7 percent.
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