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News
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LCG, September 12, 2025--Entergy announced yesterday that the Public Utility Commission of Texas (PUCT) approved Entergy Texas’ proposal to build two efficient natural gas-fired power plants to support the region’s rapid growth. The combined electric generating capacity of the two facilities, the Legend Power Station and the Lone Star Power Station, will add over 1,200 MW to the Southeast Texas power grid to support new customer demand, increase reliability and lower costs for all customers. Both facilities are scheduled to commence operations by mid-2028.
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LCG, September 4, 2025--Puget Sound Energy (PSE) announced yesterday that phased construction has commenced on its 142-MW Appaloosa Solar Project, a utility-scale solar facility underway in southeastern Washington. The project is being built by Qcells EPC, who will serve as the module manufacturer and the engineering, procurement, and construction (EPC) solution provider. Construction is scheduled through 2026, and commercial operation is expected at the end of next year.
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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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