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News
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LCG, March 13, 2026--The Southwest Power Pool (SPP) announced yesterday that leaders from the participating organizations voted unanimously to proceed as planned with expanding its regional transmission organization (RTO) services into the Western Interconnection. SPP sees the decision to proceed as planned as a strong signal of confidence as SPP and its partner utilities prepare for this key milestone, which will occur overnight between March 31 and April 1.
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LCG, March 6, 2026--Entergy yesterday announced approximately $5 billion in total savings for 2.3 million customers in Arkansas, Louisiana and Mississippi resulting from data center customer agreements in those states. Entergy, which completed its first data center customer agreement in 2024, projects the customer savings over the next 20 years and after the regulatory approval or acknowledgement of the public service commissions in those states.
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Industry News
LG&E and KU Authorized to Exit Midwest ISO
LCG, June 2, 2006--The Kentucky Public Service Commission (PSC) on Wednesday authorized Louisville Gas & Electric Co. (LG&E) and Kentucky Utilities Co. (KU) to withdraw from the Midwest Independent System Operator (MISO), the regional electric system operator that had a service territory extending from eastern Montana through the upper Midwest - including Manitoba - and south to parts of Kentucky and Missouri.
In a two-to-one vote, the PSC ruled that the exodus from the MISO would reduce costs and maintain local control over key aspects of the utilities? operations. In dissenting, Chairman Mark David Goss stated that the withdrawal would leave Kentucky in a weak position to influence electric policy during the inevitable regionalization of transmission assets and markets.
On March 17, 2006, the Federal Energy Regulatory Commission (FERC) granted conditional approval to LG&E and KU to withdraw from the MISO. The PSC's authorization enables both utilities to proceed with the withdrawal from the MISO.
LG&E and KU plan to resume control over their transmission facilities. The utilities propose to use the Tennessee Valley Authority (TVA) to provide transmission reliability coordination services and to use the Southeast Power Pool (SPP) to address electric power marketing rules. Agreements with TVA and SPP are the subject of current, separate proceedings before the PSC.
LG&E and KU became members of the MISO in 1998. The MISO formally began commercial operations of its new, Day-Ahead and Real-Time electricity markets on April 1, 2005. Elements of the new market design include centralized, security-constrained unit commitment; security-constrained economic dispatch; locational marginal pricing (LMP); and a market for financial transmission rights (FTRs).
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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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