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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

Cal-ISO Calls 'Stage 2' Power Emergency for Third Day

LCG, Nov. 16, 2000--The California Independent System Operator yesterday declared a "Stage 2" power emergency, forcing the state's utilities to shed load for the third straight day. The ISO said it would need customers with interruptible service contracts to reduce demand by 1,400 megawatts late yesterday afternoon.

All summer, Cal-ISO scrambled to find 44,000 megawatts of power and this week it is having trouble coming up with 33,000 megawatts because about 12,000 megawatts worth of power plants are shut down for maintenance and repair after running non-stop for several months.

The problem was exacerbated by a cold snap early this week that boosted demand by customers who use electricity for heat. The cold weather also affected the Pacific Northwest, reducing the amount of power that was available for import to California.

In addition, at this time of the year the streams of the Sierra Nevadas are nearly dry, reducing the amount of hydroelectric power available in the state.

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