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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

1250-MW Plant Completed in Arizona

LCG, Nov. 12, 2003--The Mesquite Power plant is now capable of producing 1,250 megawatts, after having begun operations with 625 megawatts during the summer, Sempra Energy Resources announced.

The plant is one of three that were completed in the Pacific Southwest this year, including the Termoelectrica de Mexicali and Elk Hills Power, outside Bakersfield, California. Donald E. Felsinger, group president of Sempra Energy Global Enterprises, said "the Completion of Mesquite Power caps a very successful year in terms of our power plant construction efforts, as we completed all three projects on time and under budget."

The plant, which is made up of two blocks of combined-cycle, gas-fired units, is located approximately 40 miles west of Phoenix, in Arlington, Arizona. Before Mesquite Power was built, roughly 250 mesquite trees and 25,000 cacti were removed from the area, and kept in a nursery for the duration of construction. The trees and cacti will be replanted through March of 2004, according to the company.
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