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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

DOE to Fund Advanced NOx Control Study for Coal Plants

LCG, March 9, 2005--The Department of Energy National Energy Technology Laboratory (NETL) has selected Reaction Engineering International (REI) for a project to evaluate REI's Advanced Layered Technology Approach to reduce NOx emissions in a more cost-effective manner. Lowering capital and operating costs of emission control systems may accelerate the emission control upgrades, reduce emissions, and improve the cost-competitiveness of aging coal plants. The project is part of NETL's Advanced NOx Emissions Control Program that supports the development of advanced technologies to control NOx emissions.

The project will evaluate the ability of the Advanced Layered Technology Approach (ALTA) to reduce NOx emissions below 0.15-lb/MBtu on a cyclone boiler by combining deep staging from overfire air, Rich Reagent Injection (RRI), and an innovative SNCR system. The tests will include firing 100% bituminous coal and bituminous/PRB coal blends. The Electric Power Research Institute (EPRI) and AmerenUE will work with REI on this project.

Relative to more traditional NOx emission control systems, such as selective catalytic reduction (SCR), the benefits of ALTA are lower capital and lifecycle costs and significantly less plant outage time. Tests to be conducted at the AmerenUE Sioux plant will also evaluate the impact on balance-of-plant issues, such as the amount of unburned carbon in the ash, slag tapping, ammonia slip, waterwall corrosion and heat distribution. The tests follow REI's previous experience at Conectiv's 136 MW BL England Unit 1 and AmerenUE's 525 MW Sioux Unit 1 where significant NOx reduction was achieved using RRI and overfire air during the test period.

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