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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

Prairie State Energy Campus Gains New Developer

LCG, October 12, 2006--CMS Enterprises, a subsidiary of CMS Energy, announced yesterday that it has signed agreements with Peabody Energy to co-develop the Prairie State Energy Campus. The proposed electric generating station is located in Washington County, Illinois and is adjacent to the new Lively Grove Mine, which would supply low-cost coal directly to the plant. The plant is to include two, 800-MW units and is estimated to cost over $2.5 billion.

With the new agreements, CMS Enterprises and Peabody Energy will co-develop the project and each own 15 percent through a jointly owned limited liability company. CMS Enterprises will serve as lead developer and construction manager of the power plant, and Peabody Energy will serve as the lead developer of the Lively Grove Mine.

Peabody Energy also announced yesterday that it has entered into agreements with the Kentucky Municipal Power Agency (KMPA), the Missouri Joint Municipal
Electric Utility Commission (MJMEUC) and the Soyland Power Cooperative in
Illinois for the right to purchase an additional 6 percent equity share of
the Prairie State Energy Campus.

According to Peabody Energy, the agreements now give the project's partners the right to purchase a 53 percent equity ownership in the project. The agreements allow the cities of Columbia, Missouri; Princeton, Kentucky; and
Paducah, Kentucky and the rural members of Soyland to obtain electricity from the facilities. Other partners include the Indiana Municipal Power Agency (IMPA), Northern Illinois Municipal Power Agency and Wolverine Power Supply Cooperative.

The major permits necessary for construction of the Prairie State facility have been received, according to Peabody Energy.
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