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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

Heat Returns to Pressure State Power Reserves

LCG, Sept. 18, 2000--The California Independent System Operator was facing another day of thin reserve power supply margins today with a forecast peak demand of nearly 44,000 megawatts, as another heat wave moved in on the state over the weekend.

At dusk yesterday evening, the temperature in Palo Alto was 90, and that was on our front porch.

For today, a heat advisory was issued a 3:30 a.m. for the entire San Francisco and Monterey Bay Areas with highs predicted in the 90s at the beaches and as high as 110 inland. Record highs were expected to continue into tomorrow.

For Los Angeles, highs were predicted from the mid to upper 70s near the coast to the high 80s inland. In San Diego, where high temperatures have meant high electric bills and short tempers, it was expected to be in the 70s near the ocean and in the 90s inland.

California's Central Valley will sizzle this afternoon, with temperatures reaching 107 at Redding in the north and 102 in Bakersfield in the south. At Sacramento, the state capital, highs today were forecast at 105.

Temperatures in all of these places are expected to be two or three degrees higher tomorrow and Cal-ISO is guessing that it will need about 45,000 megawatts to serve peak demand, with nothing in reserve.

At 9:30 a.m. Pacific Time today, Cal-ISO issued a "power watch" bulletin, which it said was the first of several expected this week.

At 11:00 a.m. this morning, it was 84 degrees on our front porch and the sun hadn't hit that side of the house as yet.

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