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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

Peabody Energy Receives Air Permit for New Coal Plant

LCG, January 19, 2005--The Illinois Environmental Protection Agency (IEPA) issued an air pollution permit to Peabody Energy for its proposed coal-fired, Prairie State Energy Campus and adjacent coal mine located in Washington County, Illinois. The permit was issued following what a Peabody spokesperson described as a three-year period that included rigorous environmental review, public comment and extensive community input. Opponents may appeal the IEPA decision in the next 30 days.

The project is one of two, similar coal projects that Peabody Energy is currently developing in the Midwest. The proposed Prairie State Energy Campus will consist of a 1,500 MW, coal-fired generating station that is estimated to cost $2 billion, including approximately $500 million for emission control equipment to allow for the use of local, high-sulfur coal. Peabody could commence construction as early as the end of 2005, with operations beginning about four years thereafter.

A key hurdle for Peabody to overcome is developing partners and energy sales agreements. Last July, a number of Midwest rural electric cooperatives and municipal agencies, including Indiana Municipal Power Agency, the Missouri Joint Municipal Electric Utility Commission, and Wolverine Power Supply Cooperative in Michigan, executed a letter of intent with Peabody Energy to acquire partial interest in the Prairie State Energy Campus. The agreement called for the group to own about one-third of the project, which including coal reserves, the generating plant and output.

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