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News
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LCG, August 15, 2025--Xcel Energy announced that the company received state approval yesterday from the Minnesota Public Utilities Commission to extend operations of the Prairie Island nuclear plant through the early 2050s. Prairie Island has two units that have a combined generating capacity of 1,100 MW. The units’ current operating licenses expire in 2033 and 2034.
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LCG, August 7, 2025--Portland General Electric (PGE) today announced the completion of three, four-hour lithium-ion utility-scale battery energy storage systems (BESS) in Oregon, adding 475 MW and more than 1.9 GWh of dispatchable capacity to serve the Portland metro area. Each of these BESS facilities can deliver power during peak demand or when other electric generating facilities are limited, which improves system flexibility, reliability and costs.
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Industry News
Construction Halted on SWEPCO's Coal-fired Power Project
LCG, December 3, 2008--Construction at Southwestern Electric Power Company's (SWEPCO) coal-fired electric generating facility in southwest Arkansas yesterday was halted in response to an appeal filed by the Sierra Club and Audubon Arkansas with the Arkansas Pollution Control and Ecology Commission. According to a SWEPCO spokesperson, the halt in construction work is required when an appeal is filed. SWEPCO plans to request that construction be allowed to continue pending the decision regarding the appeal.
Following a two-year review of the application, the Arkansas Department of Environmental Quality issued the air permit for the proposed John W. Turk Jr. plant on November 5, 2008.
SWEPCO, a subsidiary of American Electric Power (AEP), proposed to construct the 600-MW plant in Hempstead County, Arkansas to serve retail and wholesale customers in Arkansas, Texas and Louisiana. The estimated cost of the facility is $1.52 billion. The proposed facility will use ultra-supercritical technology and will burn sub-bituminous, Powder River Basin (PRB) coal from Wyoming.
In a 2-1 decision last November, the Arkansas Public Service Commission (APSC) granted a Certificate of Environmental Compatibility and Public Need (CECPN) to construct the plant.
In March 2008, the Louisiana Public Service Commission (LPSC) unanimously approved SWEPCO's request to build the plant, including a requirement for SWEPCO to prepare and submit a study that identifies potential, cost-effective energy efficiency and load management programs for SWEPCO's Louisiana customers. The Public Utility Commission of Texas approved the proposal in July 2008, rejecting a recommendation from an administrative law judge (ALJ).
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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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