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News
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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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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
Entergy Arkansas to Acquire Combined-Cycle Plant
LCG, July 13, 2011--Entergy Arkansas, Inc., a subsidiary of Entergy Corporation, announced yesterday its plans to purchase the 620-MW Hot Spring Energy Facility from KGen Power Corporation for $253 million. The purchase agreement is pending regulatory approvals.
The Hot Spring Energy Facility, located about 50 miles southwest of Little Rock, is a combined-cycle gas plant that commenced commercial operations in June 2002. The facility includes two combustion turbines, two supplemental-fired heat recovery steam generators (HRSGs), a chiller system to cool the turbine inlet air in the summer, and one condensing steam turbine generator. In addition, 393-acre site was designed with certain common facilities in place to support a second, 620-MW station.
Entergy stated the acquisition comes at a low cost and without project risks. Furthermore, the gas-fired facility conforms with Entergy's long-term strategic plan to meet the future needs of its customers. The President and Chief Executive Officer of Entergy Arkansas, Inc. stated, "We view this as a sound investment to meet future power demand in Arkansas. Hot Spring is a well-maintained, proven facility in our service area, and it will provide us with reliable, low-cost energy to serve the growing needs of our customers."
The Director of Resource Planning for Entergy Arkansas stated, "Acquiring additional capacity also helps fill the company's generation shortfall at the most economic market price benefiting our customers. All of these combined steps lead to downward pressure on costs to the consumer."
In the Southeast, Entergy is not alone in acquiring modern gas-fired, combined-cycle plants. Last week, the Tennessee Valley Authority (TVA) announced plans to purchase the 968-MW Magnolia Combined Cycle Gas Plant in northern Mississippi from Kelson Limited Partnership. In April, Oglethorpe Power Corporation completed the purchase of two natural gas-fired, combined cycle generating units in Georgia from KGen Power Corporation for a purchase price of approximately $529 million, including working capital and other closing adjustments. The two Murray units represent an aggregate summer planning reserve generating capacity of about 1,220 MW.
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UPLAN-NPM
The Locational Marginal Price Model (LMP) Network Power Model
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UPLAN-ACE
Day Ahead and Real Time Market Simulation
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UPLAN-G
The Gas Procurement and Competitive Analysis System
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PLATO
Database of Plants, Loads, Assets, Transmission...
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